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Effect of B2O3 additive on the microstructure and luminescent properties of spark plasma sintered YAG: Ce transparent ceramics J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-20 Ziqiang Jiang, Jingtian Li, Guodong Sun, Weihua Luo, Peng Zhao
Transparent ceramics Y3Al5O12: Ce3+ (YAG: Ce) were prepared by the spark plasma sintering (SPS) process with B2O3 acting as the sintering additive. The effect of B2O3 on the microstructure and luminescent properties were examined. With the help of the liquid phase created by the low melting point B2O3 additives, the carbon contamination of the SPS prepared YAG: Ce ceramics was remarkably relieved,
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Effect of AlCrCuFeNi high entropy alloy reinforcements with and without B4C on powder characteristic, mechanical and wear properties of AA5083 metal-metal composites J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-20 Abdullah Hasan Karabacak, Aykut Çanakçı, Serdar Özkaya, Sedat Alperen Tunç, Onur Güler, Müslim Çelebi
This study presents a novel approach to enhancing the properties of the AA5083 alloy by incorporating a high entropy alloy (HEA), specifically AlCrCuFeNi, through mechanical alloying. The Al/HEA composites were thoroughly characterized in terms of powder morphology, microstructure, fracture and wear surface morphology, phase composition, and oxidation behavior using XRD, SEM-EDS, and TGA. The impact
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Constructing a multilayered film β[sbnd]PbO2[sbnd]ZrO2 electrode for energy-efficient zinc electrowinning J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-20 Jianqiang Ye, Buming Chen, Shixing Wang
The zinc electrowinning process demands considerable energy, prompting the quest for energy-efficient solutions to curtail costs. Hence, the development of energy-saving anode materials for zinc hydrometallurgy is an important issue. Herein, multilayered PbO2 film materials were prepared through thermal decomposition and composite electrodeposition, yielding a new PbO2–ZrO2 electrode featuring ZrO2
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Nanostructured anode materials for high-performance lithium-ion batteries J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Jingjie Xie, Jing Yin, Lan Xu, Adnan Ahmed
The fast proliferation of mobile electronic devices and electric vehicles is driving the development of advanced lithium-ion batteries (LIBs). Anode materials for LIBs are directly relevant to the capacity, charge/discharge rate and cycle life of LIBs. This review first introduces the basic working principle of LIBs and summarizes three anode materials with different mechanisms. Then, with the rapid
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Effects of ZnO additive on the electrical and densification properties of A-site deficient barium cerate perovskite J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Ángel Triviño-Peláez, Domingo Pérez-Coll, Jadra Mosa, Glenn C. Mather
The dual strategies of A-site deficiency and addition of ZnO sintering aid have been employed to optimise stability and densify the high-temperature proton conductor Ba0.95Ce0.8Y0.2O3-δ at 1200 °C (B95CYZn-1200). Structural analysis performed by Rietveld refinement based on X-ray diffraction data indicated perovskite phase with monoclinic symmetry (space group, I2/m). Raman spectroscopy revealed the
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Microstructure-induced anisotropic biocorrosion response of laser additive manufactured WE43 alloy J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Youwen Yang, Chuyi Liu, Yinjin Shao, Chenrong Ling, Xuehua Wu, Dongsheng Wang, Chunrong Pan, Cijun Shuai
The microstructure and corrosion of laser-processed WE43 was studied. Results suggest that multi-factors like grain structure, crystallographic defect, and precipitate distribution result in an anisotropic corrosion response. XY plane with high crystal defect densities offers more sites for pitting corrosion. Filiform corrosion is detected on both XY plane and XZ plane, where Zr-rich and RE-rich precipitate
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Effect of ultrasonic solidification on the microstructure, mechanical and corrosion properties of FeCoCrNiCuAl0.4 high entropy alloy J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 M.M. Zhao, X. Wang, W. Zhai, J.Y. Wang
One-dimensional (1D), two-dimensional (2D), and three-dimensional (3D) ultrasound with 20 kHz frequency were successfully applied into the solidification process of FeCoCrNiCuAl0.4 high entropy alloy (HEA) to investigate their effects on microstructural evolution and application performance improvement. During static solidification, the primary γ1 phase developed into coarse dendrites with strip-like
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Bottom-up construction of defective TiO2 microspheres with hierarchical architectures and controlled crystallites for visible-light photocatalysis J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Feng Lin, Xiangyan Meng, Lijun Liao, Ruting Yuan, Hanyu Zhang, Guangquan Zhao, Ke Tang
Defect-engineering of TiO2 materials has emerged as an effective strategy to enhance the light adsorption and improve the photocatalytic activity under visible-light. However, the designing and fabricating of hierarchically structured TiO2 with controllable crystalline phases and stable structure defects is challenging and rarely reported. Herein, we present a novel bottom-up synthesis strategy to
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In-situ construction of SnO2 nanolayer-SnS2 nanosheets heterostructures for enhanced NO2 sensing at room temperature and their DFT investigation J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Jinzhou Bai, Sikai Zhao, Wenxin Wang, Meili Wu, Hong Xiao, Wenbao Liu, Zhenyu Yuan, Fanli Meng, Yanbai Shen
Traditional NO2 sensors based on metal oxide semiconductors suffer from high power consumption, creating a pressing demand for novel NO2 sensors operating at room temperature. Motivated by this, SnO2 nanolayer modified SnS2 nanosheets heterostructures were successfully prepared through an in-situ synthesis process by mildly annealing pure SnS2 nanosheets for NO2 detection at room temperature. The SnO2
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Effect of ZrC particle on microstructure and corrosion behavior of CoCrNi medium-entropy alloy fabricated by powder plasma arc cladding J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Kun Bin, Ping Yao, Riheng He, Peimei Zhang, Qiang Zhu
Medium-entropy alloys (MEAs) show significant potential as corrosion-resistant coatings. However, their industrial applications are limited by fabrication challenges and low efficiency. This study synthesized CoCrNi(ZrC)x MEA coatings using powder plasma arc cladding (PPAC) technology. The CoCrNi(ZrC)x MEAs consist of columnar and equiaxed grains. Incorporating ZrC refines the grain structure, achieving
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Simultaneous improvement in mechanical properties, corrosion resistance and antibacterial properties of Ti-Ag sintered alloy with gradient nanostructure J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Mian Chen, Yuantao Bu, Yu Liu, Zhihui Kuang, Jing Qiu, Erlin Zhang, Jian Hu
Bioinert titanium (Ti) with antibacterial properties is crucial for bone implantations. Alloying Ag can endow Ti with antibacterial properties, while the mechanical, corrosion and antibacterial properties of Ti-Ag alloys are not satisfactorily balanced. In this work, Ti-x wt%Ag alloys (x=0.5, 1 and 3) were sintered by spark plasma sintering and then subjected to a surface mechanical rolling treatment
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Comprehensive electrical properties and thermal stability of PNT-xPZ-PT ceramics via composition optimization J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Yufang Jiao, Junjun Wang, Jian He, Bingsen Wang, Yan Mu, Meng Liu, Che Sun, Danqing Liu, Fengmin Wu
The structure, electrical properties, and thermal stability of 2 mol% MnO2-doped 0.12Pb(Ni1/3Ta2/3)O3-xPbZrO3-(0.88-x)PbTiO3 (abbreviated as PNT-xPZ-PT-Mn, x = 0.41, 0.42, 0.43, 0.44) ceramics were systematically investigated to analyze the impact of varying PZ content within the range of 0.41–0.44. In addition, the high temperature polarization method was employed to achieve enhanced electrical performance
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A novel Zr-based metallic glass composite and its plasticizing mechanism J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Chenyang Zhang, Yaning Dou, Kexin Yin, Yuanyuan Wang, Songtao Li, Yinxiao Wang, Hong Li, Zhengkun Li, Haifeng Zhang, Zhengwang Zhu
A novel Zr-based metallic glass composite was prepared utilizing a die casting process in this study. This composite utilizes high-porosity open-pored foam metal as the second phase and takes advantage of the unique distribution characteristics of this phase to achieve structural characteristics resembling hard regions surrounded by soft regions. This facilitates the formation and interleaving of numerous
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Effect of Yb2O3 doping on the thermal and mechanical properties GdAlO3-Gd2Zr2O7 composite with eutectic composition J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Chuan Sun, Pengfei He, Zhenfeng Hu, Xiubing Liang, Xiangyang Liu, Chunlei Wan
Rare earth zirconates exhibit potential as thermal barrier coatings, but their limited toughness impedes their widespread use. To address this issue, rare earth aluminates are regarded as effective toughening agents for zirconates. However, the thermal conductivity of composites containing rare earth aluminates and zirconates tends to rise. To mitigate this issue, we have developed a series of Yb2O3-doped
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Role of intermediate phases on microstructures, wear and corrosion resistance in new-developed (α + β) titanium alloy J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Bo Song, Yanwei Xue, Junjie Ni, Wenlong Xiao, Junshuai Wang, Chaoli Ma, Lian Zhou, Hui Chen
A new (α + β) Ti alloy has been designed and prepared in this work, and the results show that three intermediate phases will be transformed including α′′ martensite, O′ and ω. Upon continuous heating, the α′′ martensite decomposes gradually and disappears before α precipitation. The ω and O′ domains are generated continuously upon aging, and such two intermediate phases co-exist when α phase nucleation
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Unique magnetic structure of the vdW antiferromagnet VBr3 J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Milan Klicpera, Ondřej Michal, Dávid Hovančík, Karel Carva, Oscar Ramon Fabelo Rosa, Milan Orlita, Vladimír Sechovský, Jiří Pospíšil
VBr3 is a van der Waals antiferromagnet below the Néel temperature of 26.5 K with a saturation moment of 1.2 µB/f.u. above the metamagnetic transitions detected in the in-plane and out-of-plane directions. To reveal the AFM structure of VBr3 experimentally, we performed a single-crystal neutron diffraction study on a large high-quality crystal. The collected data confirmed a slight monoclinic distortion
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A deep insight of re-entrant martensitic transformation mechanism in Co2Cr(Ga,Si) shape memory alloys J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-19 Wenbin Zhao, Yi Zhao, Jian Li, Changlong Tan, Kun Zhang
Co2Cr(Ga,Si) shape memory alloys have a wide application temperature range due to the unique re-entrant martensite phase transformation (RMT) behavior. Nevertheless, the microscopic mechanism of RMT remains elusive and unsystematic. The heart of this investigation lies the comprehensive exploration of phase stability, phase transformation path, and martensite slip direction during RMT from martensite
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Ni-based electrocatalysts for urea oxidation reaction: Mechanistic insights and recent advancements J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Ze Li, Youbin Zheng, Hao Guo, Xiaoqing Cheng, Yuhui Huang, Cunyin Liu, Jianbing Zang, Liang Dong
The escalating demand for clean energy has intensified the pursuit of efficient hydrogen production methods. The urea emerges as an alternative to traditional electrolysis. Despite the inherent sluggish kinetics posed by the 6-electron transfer process, Ni-based catalysts have demonstrated remarkable potential in accelerating urea oxidation reaction (UOR) kinetics. This comprehensive review focuses
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Role of Mn in improving the corrosion resistance and cytocompatibility of antibacterial Mg-Ag-Mn alloy J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Xuemei Shi, You Lv, Yupeng Zhang, Xinying Liu, Zehua Dong, Xinxin Zhang
To improve corrosion resistance and cytocompatibility of biodegradable Mg-Ag alloy, the non-toxic Mn was added to produce Mg-Ag-xMn (x=0, 0.5, 1, 2 and 3 wt%) alloys. It was revealed that Mg-Ag-2Mn alloy exhibits an optimized comprehensive property after post-casting heat treatment (PCHT). Microstructural factors for the improved performances are then determined. It is revealed that the addition of
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Temperature dependence of photo- and radio-luminescence, scintillation and photoconversion properties of Lu0.6Gd2.4(Al5-xScx)O12:Ce garnet crystals grown by micro-pulling-down method J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Warut Chewpraditkul, Ongsa Sakthong, Takahiko Horiai, Shunsuke Kurosawa, Marcin E. Witkowski, Michał Makowski, Karol Bartosiewicz, Robert Tomala, Damian Szymański, Winicjusz Drozdowski, Weerapong Chewpraditkul, Akira Yoshikawa
The luminescence, scintillation and photoconversion properties of Ce3+-doped Lu0.6Gd2.4(Al5-xScx)O12 (x = 1.2, 1.5, 2) garnet crystals grown by micro-pulling-down method were investigated. Increasing Sc3+ concentration induced lattice strain and cracking due to ionic radius mismatch. At low Sc3+ concentration, the strain caused core-concentrated cracks and radial inhomogeneity. At higher Sc3+ concentration
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Factors controlling the organ-specific T1 contrast effect of silica nanoparticles co-doped with both Mn2+ ions and oleate-coated iron oxides J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Olga Bochkova, Alexey Stepanov, Anastasiya Bebyakina, Daniil Smekalov, Kirill Kholin, Irek Nizameev, Alexander Romashchenko, Evgenii Zavjalov, Anna Lubina, Alexandra Voloshina, Oksana Tyapkina, Maxim Tarasov, Timur Sultanov, Mark Rümmeli, Vadim Salnikov, Yulia Budnikova, Asiya Mustafina
The present work introduces the synergistic effect of co-doping of both oleate-coated superparamagnetic iron oxide nanoparticles (SPIONs) and Mn(NO3)2 into silica nanoparticles (SNs) on the T1-relaxivity of Mn2+ ions. The observed synergism can be attributed to the limited oxidation of Mn2+ ions when they are doped into the outer layer of SNs doped with SPIONs, despite the alkaline synthesis conditions
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Cross-rolling induced texture randomization and structural evolution for improved plastic isotropy in Al-Mg alloys with high Mg content J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Young-Chul Shin, Young-Chul Park, Je-Pyo Hong, Jun Young Cheong, Kwang-Yuk Kim, Byungsu Shin, Dae-Yong Jeong, Taejin Lee, Taeyang Kwak, Taek-Kyun Jung, Chang-Hee Cho, Kwangtae Son
Plastic anisotropy is a key factor that affects the formability and performance of Al-Mg alloys. In this study, the effects of Mg content and strain path shifting from unidirectional rolling (UDR) to cross rolling processes (CR) on plastic anisotropy in Al-Mg alloys were investigated. Al-6 and 9Mg alloys were heat-treated and rolled in two different ways: the first was a UDR process, and the other
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Plasmon-induced efficient solar-driven H2 production using bimetallic core-shell Cu@Ag:TiO2 nanocomposite photocatalyst J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Santosh V. Mohite, Changseung Lee, Kwangchan An, Yeonho Kim
The nano-interface formed by bimetallic Cu@Ag nanoparticles (NPs) on a TiO2 surface enhances charge separation through plasmonic heterojunctions. These bimetallic Cu@Ag NPs were synthesized via the a galvanic replacement reaction (GRR) involving Ag+ in an aqueous medium and metallic Cu NPs on TiO2. During the GRR, Cuδ+ and Agδ+ charge pairs are generated by electron transfer from the catalyst surface
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A core-shell structured catalyst for enhanced oxygen evolution: NiFe double hydroxide coating over phosphorus -modified NiMoO4 nanorod cores J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Mengyang Li, Peng Yu, Mingyi Zhang
In this paper, we innovatively employed low-temperature phosphorization technology to successfully incorporate P doping into NiMoO4 nanorods. Subsequently, utilizing the electrodeposition method with a solution rich in Ni²⁺ and Fe³⁺ as the electrolyte, we delicately tuned the process to identify the optimal deposition time, achieving a uniform coating of NiFe LDH on the surface of the P-doped NiMoO4
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Preparation of Si/TiSi2 as high-performance anode material for lithium-ion batteries by molten salt electrolysis J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Liangtai Wang, Yanjie Niu, Haobo Liu, Fengshuo Xi, Jie Yu, Shaoyuan Li, Jijun Lu, Xiuhua Chen, Kuixian Wei, Wenhui Ma
The photovoltaic industry has generated a large amount of silicon cutting waste (SiCW), whose disposal presents an urgent environmental issue. In this study, micron-sized flaky silicon cutting waste was transformed into silicon nanowires, and Si/TiSi2 nanocomposites were synthesized through molten salt electrolysis using photovoltaic SiCW and TiO2 as precursors. Lithium-ion batteries using the resulting
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Engineering of N doped carbon@FeCo alloy hollow spheres: Remarkable mid-frequency electromagnetic wave absorption performance exhibited by unique porous and wrinkled surface structure J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Jiyuan Xiao, Bo Wen, Jiatian Li, Xiaofeng Liu, Song Xue, Zhiheng Wei, Sunying Yang, Guorui Yang, Shujiang Ding
The modulation of the shape and design of microstructures plays a crucial role in enhancing the efficient absorption of electromagnetic waves in absorbers. The electromagnetic parameters and scattering effects of these materials are directly influenced by their morphological characteristics. In this study, polystyrene microspheres were used as templates for a two-step in-situ growth process: Initially
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The dual-band emissions, multicolor continuous mechanochromisms, and application based on a single luminogen J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Jianfeng Jiang, Chenwei Hu, Jiaqi Liu, Lei Ma, Yongtao Wang, Jianmei Guo
Currently, the high contrast and multicolor continuous mechanochromic materials still face a great challenge. Here, a novel D-π-A type luminogen named as CzIPCN, was successfully constructed. By solvent diffusion method, crystals YC, BT, RE, and RA were obtained, not only covering a large-span emission from blue to red, but also showing scare dual band emission. Interesting, the blue BT and yellow
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Hydrogen evolution coupled with microplastic upcycling in seawater via solvent-free plasma F-functionalized CoNi alloy catalysts J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Zhi-Yuan Feng, Jin-Chi Jiang, Biao Jin, Long-Yue Meng
The deleterious impacts of marine polyethylene terephthalate (PET) microplastic pollution on aquatic organisms have garnered global concern. Crafting a more cost-effective method to derive high value-added products from these microplastics is a pivotal challenge in marine resource reuse. This study introduces a strategy for electrooxidation of PET microplastics coupled with seawater electrolysis for
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The one-pot synthesis of defect-rich bimetallic MOFs for efficient photocatalytic Fenton degradation of organic pollutants J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Zhihao Bai, Xiang Zhao, Shouwu Yu, Xianguang Meng, Shujuan Xiao
The efficient and straightforward treatment of organic contaminants in water remains a significant challenge. This study presents the synthesis of a defective NH2-MIL-88Fex/Cuy photo-Fenton catalyst via a simple one-pot hydrothermal method. The incorporation of the inexpensive metal Cu enhances the valence cycles of Cu2+/Cu+ and Fe3+/Fe2+ under the photo-Fenton system, thereby compensating for the
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A high magnetic energy product obtained in hot-deformed Nd-Fe-B magnet by chemical plating Fe-Co bilayer films J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Yong Ouyang, Renjie Chen, Xu Tang, Wenzong Yin, Xianshuang Xia, Yuhang Cui, Jinyun Ju, Yeyuan Du, Aru Yan
This study investigates a novel method, chemical plating, with the goal of integrating nano-sized ferromagnetic materials into hot-deformed Nd-Fe-B magnets, potentially enhancing their magnetic properties. Coating Fe-Co double layers on Nd-Fe-B magnetic powder resulted in a significant improvement in the remanence over 10 %, increasing from 1.37 to 1.45 T, as well as an increase in the maximum magnetic
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Enhancing the fracture toughness of zirconia via highly oriented graphene arrays J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Weijin Cai, Shaojun Liu
Zirconia matrix composites with well-dispersed and highly-oriented two-dimensional graphene arrays were fabricated successfully using tape casting. This significantly improved the fracture toughness (KIC) of zirconia, i.e., an improvement of 64.1 % in KIC, from 4.3 MPa m0.5 to 7.21 MPa m0.5. The interface strengthened by Zr, O and C bonding between zirconia and graphene plays a crucial role in improving
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Remarkable performance of Co3O4 anode coated with hard-soft carbon 2D nanosheets prepared from single pavement petroleum asphalt precursor J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Yuxuan Zhang, Dongfeng Li, Peng Wang, Bingbing Hu, Yuheng Sun, Xiaoya Yuan
Incorporating extraneous carbonaceous materials to coat transitional metal oxide (TMO) anodes emerges as a viable strategy to mitigate the pulverization of TMO anode during Li-ion insertion/extraction processes. Herein, hard-soft carbon coated Co3O4 (HC-SC@Co3O4) composites were synthesized by employing a facile NaCl-mediated pyrolysis with Co(NO3)2·6 H2O as the oxide precursor and pavement petroleum
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Hydroxyl-driven construction of dual-emitting CsPbBr3/EuWO4(OH) composite for radiometric thermometer and information encryption applications J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Zhou Yuan, Le Han, Yuchi Zhang, Lufang He, Peng Liu, Yan Xu
Self-assembled inorganic metal halide perovskite composites with high emitting efficiency, tunable multimode emission and stimuli-responsive luminescence demonstrated great potential in diversified luminescence applications. Here, a novel CsPbBr3/EuWO4(OH) composite was successfully prepared through the surface adsorption of Pb2+ ions on hydroxylated EuWO4(OH) microsheets and subsequent nucleation
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Novel proton-conducting hexagonal perovskites Ba7In6–xYxAl2O19 for solid oxide fuel cells J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Roman D. Andreev, Irina E. Animitsa
The solid solution Ba7In6–xYxAl2O19 (0≤x≤0.25) with a hexagonal perovskite-like structure was prepared by the solid-state route. The introduction of yttrium was accompanied by an increase in lattice parameters. The total conductivity as a function of pO2 and T was measured at different humidity. The partial conductivities were found by transport number measurements and were fitted based on the defect
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Designing a high-efficiency broadband cyan phosphor for low-blue full-spectrum LED lighting J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Wenjie Deng, Decai Huang, Fengli Yang, Jiaqing Peng, Weixiong You, Xinyu Ye
Efficient cyan-emitting phosphor plays an important role in the development of solid-state lighting, which is indispensable to filling the cyan gap for full-spectrum warm-white light-emitting diodes (WLEDs) with high color rendering index (CRI). Herein, a novel highly efficient broadband cyan phosphor Ce3+-doped Ca3HfAl2Si2O12 (CHASO: Ce3+) garnet compound was developed by the substitution of Lu3+-Al3+
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Enhancing the mechanical properties and corrosion resistance of biomedical Ti15Mo alloy with ultra-finer {332} twins via cyclic deformation J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Shanshan Zhang, Tiewei Xu, Bingqing Sun, Wei Sun, Binjiang Lv, Fazhan Yang
Mechanical properties, passivation behaviors and corrosion resistance of biomedical Ti15Mo alloy with ultra-finer twins were investigated. Cyclic deformation was conducted to activating more {332} twin variants via periodic changes of tension and compression. Microstructural refinement via numerous twins with the stable boundaries is different from other mechanisms, resulting in a higher hardness and
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Phase evolution, dielectric thermal stability, and energy storage performance of NBT-based ceramics via viscous polymer process J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-18 Minghui He, Ting Wang, Weiping Gong, Fuqing Zhao, Taotao Ai, Xing Zhao, Yang He, Meng Qi, Xinyu Chen, Xinyu Liu, Guanghua Wu, Yuxiang He, Alexander N. Vtyurin, Gang Liu, Yan Yan
There is an urgent need to develop stable and high-energy storage dielectric ceramics; therefore, in this study, the energy storage performance of Na0.5-xBi0.46-xSr2xLa0.04(Ti0.96Nb0.04)O3.02 (x = 0.025–0.150) ceramics prepared via the viscous polymer process was investigated for energy storage. It was found that with increasing Sr2+ content, the material transforms from a mixture of rhombohedral and
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Yielding optimal dielectric energy storage and breakdown properties of lead-free pyrochlore ceramics by grain refinement strategies J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Seung Yong Lee, Hyunseung Kim, Changyeon Baek, Kwi-Il Park, Gyoung-Ja Lee, Seung-Hyun Kim, Ju-Hyeon Lee, Min-Ku Lee, Do Kyung Kim, Chang Kyu Jeong
In the quest to develop high-performance dielectrics suitable for high-power applications, its microstructure engineering and understanding the effect on the property have become crucial. However, the trade-off relationship between saturated polarization and breakdown strength with respect to the average grain size complicates defining the ideal microstructure for high-performance energy storage dielectrics
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Stable energy storage performance of introduced PI-PESU dielectric composite serving at the high electric and thermal fields with the designed layer structure J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Yue Zhang, Shaohua Wang, Zheng Gong, Changhai Zhang, Yongquan Zhang, Tiandong Zhang, Qi Wang, Qingguo Chi
Excellent energy storage performance of dielectric capacitor is critical in modern electronic devices and power systems. However, the key component of dielectric composite may fail to function properly under severe service conditions, such as elevated temperature and great applied electric field. Here, the linear dielectrics of PI and PESU with high glass transition temperature (Tg) were proposed to
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Built-in electric field mediated S-scheme high-quality charge separation in BiVO4/NiAl-LDH heterojunction for highly efficient photocatalytic degradation of antibiotics J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Jin Luo, Kai Wang, Yimei Qiu, Xunfu Zhou, Xiaomei Ning, Liang Zhan, Xiaosong Zhou
As an up and coming technology for antibiotics removal from water, photocatalysis required well-pleasing charge isolation, migration, and utilization efficiency to come true an efficaciously photocatalytic performance, but developing affordable and high-efficiency photocatalyst remains a great challenging. Herein, an emerging S-scheme BiVO4/NiAl-LDH heterojunction was ingeniously fabricated by mulberry-like
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Cutting the cost to combust methane by embellishing the Co-O-Cu interaction in Cu-incorporated Co3O4-based nanocatalysts J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Xiaohua Chen, Rongyan Xu, Hong Xu, Xingze Huang, Ying Zheng
Ingredient control brings huge promise for fabricating high-performance Co3O4-based nanomaterials. Herein, for steering the microstructure and properties of Co3O4 system, copper components were incorporated into Co3O4 through a facile coprecipitation ploy taking n-butylamine as the precipitant. At fitting Cu-addition level, dual Co-O-Cu interactions were established by sharing oxygen species, which
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Effect of grain size on tensile behavior and the underlying deformation modes in a Mg-5Y sheet J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Ran Ni, Shen Hua, Saijun Huang, Ying Zeng, Yanqin Chai, Hao Zhou, Jiang Zheng, Dongdi Yin
This work aims to further understand the grain size effects on individual slip/twining activities at grain scale and their correlation with the tensile behavior, for a Mg-5Y sheet with mean grain size range of 3–130 μm, based on slip trace/electron backscatter diffraction (EBSD) analysis. The correlation between tensile yield strength and the corresponding grain size fitted well with the Hall-Petch
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Microwave dielectric properties of a temperature-stable and ultra-low sintering Li3AlMo3O12/Li0.5Bi0.5MoO4 composite ceramics for ULTCC application J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Chun Tong, Xinlei Shen, Chang Feng, Xia Feng, Haikui Zhu, Lixi Wang
Temperature-stable ULTCC composite (1-x)Li3AlMo3O12-xLi0.5Bi0.5MoO4 ceramics were prepared by solid-state reaction method. X-ray and EDS results showed that Li3AlMo3O12 phase and Li0.5Bi0.5MoO4 phase exist independently, and no other phase is generated. Due to the low sintering temperature of both two phases, the composite ceramics can obtain high density at 560 ℃. Microwave dielectric properties mainly
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Comment on “Morphology evolution of β-phase in Al-Mg-Si alloys during aging treatment” J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Wenzheng Zhang, Xinfu Gu, Weiguo Wang
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Advanced CeO2 doped with different elements: A new preparation method and multifunctional properties J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Fatih Çulha, Fatma Kılıç Dokan, Rabia Kırkgeçit, Soner Çakar, Handan Özlü Torun
Energy demands are increasing daily, driven by the growth of developing countries and their populations. Supercapacitors have been employed extensively in the field of energy in recent years due to their high energy density, rapid charge-discharge rates, and long-lasting structures. In this study, the electrochemical properties of CeO2 varying with different types of additives were investigated. Four
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Cryogenic treatment induces microstructure evolution and coordinately regulates mechanical properties of CuCrZr alloys through multiple strengthening mechanisms J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-17 Yizhe Du, Hao Hu, Xinyi Yuan, Mujun Long, Huamei Duan, Dengfu Chen
In this study, the crucial task of enhancing the mechanical properties of CuCrZr alloys to extend mold lifetime was addressed. The intricate interplay between microstructure and mechanical properties controlled by cryogenic treatment was explored through comprehensive analysis, and the benefits of various strengthening mechanisms in enhancing alloy strength were quantified. Specifically, the alloys
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Tailoring scintillation and luminescence through Co-doping engineering: A comparative study of Ce,Tb Co-doped YAGG and GAGG garnet crystals J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Kazuya Omuro, Masao Yoshino, Karol Bartosiewicz, Takahiko Horiai, Rikito Murakami, Kyoung Jin Kim, Kei Kamada, Romana Kucerkova, Vladimir Babin, Martin Nikl, Akihiro Yamaji, Takashi Hanada, Yuui Yokota, Shunsuke Kurosawa, Yuji Ohashi, Hiroki Sato, Akira Yoshikawa
The development of scintillators with co-doping mechanisms has received significant attention due to the resulting enhancements in luminescence and scintillation properties. Scintillators such as Ce-doped (Gd,Tb)3(Al,Ga)5O12 have been recognized for their improved performance, attributed to the effective energy transfer between Ce3+ and Tb3+ ions. Nevertheless, the presence of Gd3+ introduced complexities
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Direct mechanochemical synthesis of nano-LiAlH4 promoted by 0.696 wt% TiCl4 catalyst surface-modified Al powder J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Shiwei Fang, Yaxiong Yang, Zhenglong Li, Yan Chu, Yingjue Chen, Yong Gao, Yanxia Liu, Wengang Cui, Xinqiang Wang, Jian Miao, Mingxia Gao, Yongfeng Liu, Wenping Sun, Jian Chen
LiAlH4, known for its high hydrogen capacity and metastable nature, is a promising hydrogen source under mild conditions. However, its reversible regeneration from stable binary dehydrogenation phases (LiH/Al) is thermodynamically and kinetically hindered. By constructing a homogeneous and highly dispersed molecular layer of TiCl4 on the surface of the Al reactant to enhance the kinetics of the multiphase
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Explainable machine learning for hardness prediction of laser powder bed fused Ti-6Al-4V and assisting in understanding effects of process parameters J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Aihua Yu, Yu Pan, Liansheng Yue, Fan Kang, Jiazhen Zhang, Xin Lu
Rapid fabrication of the Ti-6Al-4 V alloy with the target hardness via laser powder bed fusion (LPBF) is essential to meet the requirements of specific applications. Herein, the explainable machine learning (xML) models were employed to predict the hardness of LPBF-ed parts and to provide insights into the mechanisms linking process-microstructure-hardness. Results indicate that gradient boosting decision
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Microstructural evolution and strengthening mechanism of TC4/ZTA composites fabricated by laser-directed energy deposition J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Wenhai Zheng, Dabin Zhang, Dongsheng Wu, Ninshu Ma, Wenzhuan Wu
In this study, zirconia-toughened alumina (ZTA) ceramics were prepared and used to fabricate crack-free, high-performance titanium alloy (TC4)/ZTA ceramic composites with a gradient material design through laser-directed energy deposition. The ZTA content gradients ranged from 0 wt% (0ZTA layer) to 20 wt% (20ZTA layer). During laser deposition, Ti reacted with Al2O3 in the ZTA ceramics to form TiAl2O5
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Microstructural evolution and strength enhancement in laser powder bed fusion Al-Mg-Yb-Zr alloys J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Mengzhen Zhu, Mingzong Zhang, Jianying Wang, Tao Wen, Feipeng Yang, Zhongxue He, Dong Qiu, Lijun Zhang, Shouxun Ji, Hailin Yang
Al-Mg alloys fabricated by laser powder bed fusion (L-PBF) usually suffer from poor processability and strength response. In this work, the effect of Yb and Zr in Al-Mg alloys was studied using Al-3Mg-0.7Zr and Al-3Mg-0.5Yb-0.7Zr alloys fabricated by L-PBF. The size of average grain along the building direction was measured to be 3.6 μm, of which 94.2 % consisted of equiaxed grains. The formation of
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Microflower-like CuS/Co3S4 composite as high-capacity and excellent-stability material for hybrid supercapacitors J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Tian Pang, Min Luo, Xin Liu, Yaqin Zhang, Tian Zhao, Pu Shi, Fuzhi Li
Recently, transition metal sulfides (TMSs) have attracted great attention because of their abundant valence states and remarkable electrochemical activity in the field of supercapacitors. However, it is still a great challenge to prepare TMSs with high specific capacitance, good rate performance, and remarkable cycle stability. Herein, the microflower-like CuS/Co3S4 composite was achieved through an
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Anisotropic spin-glass-like behavior in single crystal GdCo2B2 J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Guanghui Hu, Jingwei Xia, Qinghua Yang
A high-quality single crystal of GdCo2B2 was successfully synthesized and subjected to a comprehensive investigation into its spin-glass characteristics. We conducted a systematic analysis of magnetization, aging effects, and alternating current (AC) susceptibility. Interestingly, a clear separation was observed between the zero-field-cooled (ZFC) and field-cooled (FC) magnetization curves under low
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Conduction in yttrium iron garnets with nickel dopant: Potential for sensor applications J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Nguyen Phuc Duong, Dao Thi Thuy Nguyet, Luong Ngoc Anh, To Thanh Loan, Nguyen Duc Dung, Cao Van Phuoc
Doped yttrium iron garnet materials exhibit semiconducting behavior and have potential applications in resistive-based sensors, including thermoresistive and gas sensors. In this study, we synthesized Ni-doped yttrium iron garnet samples using the sol-gel method combined with heat treatment. The crystal structure, morphology, and Ni incorporation into the crystal lattice were investigated using X-ray
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Impact of the Sr2+-Nd3+ heterovalent isomorphism on the luminescence of orthoborates in Sr3B2O6-NdBO3 system J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 A.B. Kuznetsov, A.Y. Jamous, V.A. Svetlichnyi, V.S. Shevchenko, A.E. Kokh, K.A. Kokh
The phase diagram of the Sr3B2O6-NdBO3 binary system was studied. The intermediate compound Sr3Nd2(BO3)4 can be synthesized over a wide range of compositions, from 27 to 70 mol.% NdBO3, at 1200°C. The maximum luminescence of Nd in this solid solution was measured for the highest content of Sr. The partial substitution of Nd by 3 mol.% Sr in NdBO3 does not significantly affect the presence of concentration
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Comparison of AlN/GaN heterojunctions grown by molecular beam epitaxy with Al and Ga assistance J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Mei Yang, Haibin Ye, Yasen Wang, Jiongqi Lu, Weiyu Ren, Yifan Li, Peng Zhang, Ling Yang, Qing Zhu, Nuanyang Cui, Chen Li, He Xi, Minhan Mi, Jiejie Zhu, Xiaohua Ma, Yue Hao
Although conventional III-nitride molecular-beam-epitaxy growth theories indicate that high-quality AlN should be prepared in Al-assisted regimes, AlN/GaN heterojunctions grown in Ga-assisted regimes actually demonstrate superior performances. In this letter, we compared Al-assisted and Ga-assisted grown AlN/GaN heterojunctions and explored the underlying mechanisms. Aberration-corrected transmission
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Effects of A/B ratio on the dielectric properties and AC conductivity behaviors of La-doped SrTiO3 with colossal permittivity J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Yu-Chi Lu, Hsing-I. Hsiang
This study investigated the dielectric properties and AC conductivity behaviors of La-doped SrTiO3 (LST) ceramics, specifically focusing on the effects of the A/B ratio and the reoxidation process. La0.01Sr(x-0.01)TiO3 (x = 0.99, 1.00, 1.01) ceramics were prepared by the traditional solid-state reaction method and sintered in a vacuum. The A/B ratio of SrTiO3 affected the defect structure and, thus
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Decorating nitrogen-deficient crystalline g-C3N4 with Ti3C2(OH)2 for photocatalytic CO2 reduction and RhB degradation enhancement J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Bianfeng Yang, Cong Wang, Xu Ji, Genying Li, Junyao Mao, Huichao Zhang, Yue Yang
Visible light responding photocatalytic technology has shown great potential to mitigate the greenhouse effect and global pollution issues in recent years. Herein, alkalized titanium carbide Ti3C2Tx (TCOH) is combined with nitrogen-deficient g-C3N4 (CN-Nx) by simply mixing for photocatalytic CO2 reduction and RhB degradation. TCOH replaces noble metals as a co-catalyst for CN-Nx due to its full-spectrum
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Interfacial reaction and matrix microstructure evolution of SiCf/Ti2AlNb composites induced by hot isostatic pressing J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Jiachen Jiang, Yumin Wang, Lina Yang, Qiuyue Jia, Yuming Zhang, Mushi Li, Xu Zhang, Xu Kong, Guoxing Zhang, Qing Yang, Rui Yang
The performance of continuous SiC fiber-reinforced titanium matrix composites (SiCf/Ti) is highly dependent on the interfacial reaction layer (RL) and the microstructure of the matrix. In this study, SiCf/Ti2AlNb precursor wires were fabricated using magnetron sputtering, and SiCf/Ti2AlNb composites were produced via hot isostatic pressing (HIP). The study explored the interfacial reactions and matrix
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Construction of h-BN/Cu2O/FeCoNi nanocomposite in double-layer configuration unveiling superior optical, x-band absorption and mechanical performance J. Alloys Compd. (IF 5.8) Pub Date : 2024-09-16 Shudong Li, Yunhe Zou, Hasan Aksoy, Yasser Fouad, Merwa Alhadrawi, Ibrahim Mahariq
In this investigation, we successfully fabricated a novel bi-layer electromagnetic wave absorber utilizing hierarchically structured pseudospherical FeCoNi magnetic microparticles in conjunction with h-BN-coated Cu2O nanocomposite. In the initial stage, the absorbance capabilities of individual materials are gauged in a singular layer form. Subsequently, leveraging these outcomes, the reflective loss