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Impact of preparation methods on the performance of Cu/Ni/Zr catalysts for methanol decomposition Mater. Res. Express (IF 2.3) Pub Date : 2024-02-26 Yexin Chen, Yankun Jiang, Beidong Zhang, Yixin Lu, Beichen Wang
Utilizing waste heat from engine exhausts to decompose methanol into a hydrogen (H2) and carbon monoxide (CO) mixture, subsequently reintroduced into the engine, offers a significant potential to enhance engine efficiency and reduce emissions. The efficacy of the catalyst is crucial, as it directly influences the composition of the decomposition gases, thereby impacting energy conservation and emissions
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The influence of NaOH concentration on the strength and microstructure of ceramic binders prepared from coal gangue through geopolymerization Mater. Res. Express (IF 2.3) Pub Date : 2024-02-26 Boheng Zhu, Ruien Yu, Jinyu Shang, Xuanye Xi, Yao Liu, Xijing Zhu
The efficient utilization of coal gangue plays an indispensable role in reducing environmental pressure, improving resource utilization efficiency and promoting green development. As a kind of solid waste rich in silicon and aluminium, coal gangue can be used to prepare ceramic materials. Therefore, a new ceramic preparation process was proposed in this study to prepare ceramic binders for grinding
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Conversion of sugarcane biomass into sustainable fabrics: softening of fibers using alkali and silicone softener treatment Mater. Res. Express (IF 2.3) Pub Date : 2024-02-23 Muhammad Bilal Qadir, Mabkhoot Alsaiari, Zulfiqar Ali, Ali Afzal, Zubair Khaliq, Muhammad Irfan, Abdul Rahman, Mohammed Jalalah, Farid A Harraz
This study addresses environmental concerns related to sugarcane biomass as an industrial fuel source by exploring its potential for textile applications. Bagasse undergoes sequential alkali-H2O2 treatment, followed by varying concentrations of silicone softener (50 g l−1 − 100 g l−1 − 150g l−1). The goal is to enhance fiber fineness and softness. Comprehensive physical and chemical characterization
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Carbide precipitation during tempering of hybrid steel 60 Mater. Res. Express (IF 2.3) Pub Date : 2024-02-21 Zhuo Zheng, Min Lei, Chaowen Huang, Mingpan Wan
The effects of carbide precipitation on mechanical performance of Hybrid Steel 60, known as a novel bearing steel, have not been investigated. In this study, the austenite transformation temperatures of Hybrid Steel 60 during heating were revealed by the thermal expansion curve. The temperature and effective activation energy of the second phase precipitation were determined by the differential scanning
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Preparation and performance analysis of micro-nano composite coatings reinforced with WC particles Mater. Res. Express (IF 2.3) Pub Date : 2024-02-21 Baijiang Chen, Mengkuo Xu
In order to research the effect of Tungsten carbide (WC) particles with different particle sizes additions in the reinforced coating, the strengthening coatings were produced by the compound process of high frequency induction cladding. The microstructure, phases and basic properties of the composite strengthening coatings were analyzed by means of metallographic microscope and FESEM. It was found
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Multi-objective optimization and evolution of dissimilar welding process between Cr-Mo steel and austenitic stainless steel for power plant application Mater. Res. Express (IF 2.3) Pub Date : 2024-02-21 Mohamed Farid Benlamnouar, Nabil Bensaid, Tahar Saadi, Riad Badji
In this study, response surface methodology (RSM) was employed to optimize the welding parameters’ effects on mechanical properties of dissimilar welds between Cr-Mo steel grade (P11) and austenitic stainless steel (AISI 316LN). To determine the best welding parameters, variance analysis (ANOVA), desirability function, and perturbation analysis were used to create regression models and identify the
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Synthesis, characterization, and swelling properties of a novel tapioca-g-Poly(Acrylic acid−2−acrylamido−2−methylpropane sulfonic acid)/ammonium polyphosphate superabsorbent polymer Mater. Res. Express (IF 2.3) Pub Date : 2024-02-20 Ngoc Binh Vo, Thi Yen Tran, Le Thanh Hang Nguyen, Thanh Tung Nguyen, Van Tuyen Nguyen, Quoc Anh Ngo
In this study, a novel superabsorbent polymer tapioca starch-g-poly(acrylic acid-2-acrylamido-2-methylpropane sulfonic acid)/ammonium polyphosphate (TS-g-AA-AMPS/APP) was synthesized based on the graft copolymerization of tapioca starch (TS) with acrylic acid (AA) and 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) via free radical polymerization in aqueous solution with ammonium polyphosphate
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Effect of heat treatment on microstructural characteristics and mechanical properties of hypereutectic B390 aluminium alloys modified by phosphorus and bismuth Mater. Res. Express (IF 2.3) Pub Date : 2024-02-20 Porawit Jiandon, Sukangkana Talangkun, Kowit Ponhan
This study investigated the effects of solution treatment and aging processes on microstructural characteristics and mechanical properties of hypereutectic B390 Al-Si Alloy modified by phosphorus (P) and bismuth (Bi). The morphology evolution of primary Si, eutectic Si, intermetallic compounds, and secondary dendrite arm spacing (SDAS) of both initial and modified alloys were investigated in as-cast
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Improvement of mid-temperature ZT in a Bi-Se-Te via a two two-step sintering process Mater. Res. Express (IF 2.3) Pub Date : 2024-02-20 Hung-Sheng Yen, Jen-Fin Lin, Shih-Chen Shi, Hao-Tung Lin, Jung-Chang Chiu
A wide range of thermoelectric materials are available for selection. The standard classification is based on the temperature range of the application. This study fabricated mid-temperature Bi-Se-Te using spark plasma sintering (SPS). This analysis focused on the impact of sintering conditions on thermoelectric properties. The structural analysis indicated that initial and secondary sintering processes
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Assessment of thrust force, delamination and temperature during drilling of basalt fiber-reinforced composite with different drill geometries Mater. Res. Express (IF 2.3) Pub Date : 2024-02-20 Maulik Shah, Vijaykumar Chaudhary, Piyush Gohil
Basalt fiber-reinforced composites (BFRC) are globally recognized for their superior mechanical properties, resistance to moisture absorption and corrosive substances and environments, which have led to their widespread use in industrial applications. Drilling of BFRC has fascinated researchers because of its non-homogeneous and anisotropic nature and various challenges associated with it. This research
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Fabrication of graphene from graphite using high-powered ultrasonic vibrators Mater. Res. Express (IF 2.3) Pub Date : 2024-02-20 Yen Hai Nguyen, Phuong Thi Mai, Nghia Phan Trong Nguyen, Hau Van Tran, Hien Thi Minh Nguyen, Anh Thi Van Nguyen, Dung Viet Nguyen, Phuong Dinh Doan, Minh Ngoc Phan, Thang Hung Bui
This paper utilizes an efficient and environmentally friendly method for synthesizing graphene from graphite, namely liquid-phase exfoliation. High-power density ultrasonic vibrators were used to separate graphite layers into graphene in a liquid medium. During layer separation, ultrasonic waves provided mechanical energy to break the Van der Walls bonds and separate graphite layers into graphene.
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Improving the ablation resistance of epoxy modified organosilicon resin synergistic modified with B2O3 and ZrSi2 Mater. Res. Express (IF 2.3) Pub Date : 2024-02-19 Bin Wang, Kai Lü, Shaohuo Yu
The boron oxide and zirconium silicide synergistic modified epoxy modified organosilicon resin composites were prepared and the ablation resistance properties of the composites were analyzed. With the synergistic effect of boron oxide and zirconium silicide, the properties, such as: the residue yield, hardness, tensile strength and ablation resistance (oxyacetylene ablation and static muffle furnace
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Dielectric properties of the Ca0.25Cu0.75-xAlxTiO3 ceramics: experimental and computational investigations Mater. Res. Express (IF 2.3) Pub Date : 2024-02-19 Jakkree Boonlakhorn, Punpatsorn Suksangrat, Pornjuk Srepusharawoot
In this study, we employed a solid-state reaction method to synthesize Ca0.25Cu0.75-xAlxTiO3 ceramics, investigating the impact of Al doping at concentrations of x = 0 and 0.0125. Notably, all ceramics exhibited a primary phase of Ca0.25Cu0.75TiO3. The addition of Al3+ induced a significant increase in grain size. Density functional theory analyses revealed a preferential occupation of Cu sites by
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Electronic properties of ZrO2 films fabricated via atomic layer deposition on 4H-SiC and Si substrates Mater. Res. Express (IF 2.3) Pub Date : 2024-02-16 Xi-Rui Wang, Yu-Xuan Zeng, Jie Zhang, Wei Huang, Hong-Ping Ma, Qing-Chun Zhang
Being an important semiconductor material for high power applications, silicon carbide (SiC) faces the problems while used as a gate oxygen layer in traditional Si MOS devices. In view of this, an innovative approach was adopted in the present work to replace the conventional SiO2 with a high-k material (ZrO2) as the gate oxygen layer to investigate its effect on the electrical characteristics of the
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Influence of silica rich HNT/MoS2 hybrid reinforcements on mechanical, wear and corrosion characteristics of magnesium AZ31 alloy Mater. Res. Express (IF 2.3) Pub Date : 2024-02-15 K T Aliasker, P M Gopal, Rajesh S, Sasivaradhan Sadasivam
This article examines the effects of combining silica-rich Halloysite Nano Tube (HNT) and Molybdenum di Sulphide (MoS2) as hybrid reinforcements, dispersed at volumes of 2, 4, and 6%, on the surface of AZ31 alloy through the application of the friction stir process (FSP). The prepared composites were analysed to evaluate their microstructure, mechanical properties, wear resistance, and corrosion characteristics
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Investigation of machining rate and surface roughness in wire EDM of Al6063/WC/ZrO2 composite using response surface methodology Mater. Res. Express (IF 2.3) Pub Date : 2024-02-15 P Janagarathinam, M Subramanian, C Sowmya Dhanalakshmi, P Madhu
The aim of the current work is to explore the machinability behavior of Al6063/WC/ZrO2 metal matrix composites (MMC) produced through a stir casting process through wire electrical discharge machining (WEDM) process. In order to examine the effects of process parameters such as voltage (V), pulse on time (Ton) and pulse off time (Toff) on material removal rate (MRR) and surface roughness (SR), the
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Unlocking the strength: the predictions of silicon carbide fracture toughness revealed through data-driven approach Mater. Res. Express (IF 2.3) Pub Date : 2024-02-14 Jun Xu, Xiemeng Zhu, Qiang Liu, Shiyu Du, Yiming Zhang
Silicon carbide ceramics are widely used within various applications, including mechanical, chemical, aerospace and military; where the fracture toughness plays a crucial role. From the processing perspectives, the fracture toughness is controlled by the combination of starting phases and sintering conditions (including additives, atmosphere, temperature and pressure). However, the interplay of these
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Silica silanization graft-strengthening bone cement poly(methyl methacrylate): process and dynamic mechanical properties Mater. Res. Express (IF 2.3) Pub Date : 2024-02-14 Shih-Chen Shi, Xin-Xing Zeng
Poly(methyl methacrylate) (PMMA) has garnered widespread interest as a potential polymer-based bone cement (BC). However, many challenges in its mechanical properties, especially elongation behavior, need to be overcome. This study focused on PMMA reinforcement with SiO2 particles from two different perspectives, i.e., particle size (nano, submicro, and micro) and surface silanization of the SiO2 particles
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Electro-oxidation of pyrene on glassy carbon electrode modified with fMWCNTs/CuO nanocomposite Mater. Res. Express (IF 2.3) Pub Date : 2024-02-14 Funmilola A Adesanya, Omolola E Fayemi
The electrochemical oxidation of pyrene, a well-known polycyclic aromatic hydrocarbon, was investigated using a glassy carbon electrode (GCE) modified with nanocomposite of copper oxide nanoparticles incorporated functionalized multi-walled carbon nanotubes (fMWCNTs). The catalytic copper oxide nanoparticles (CuONPs) synthesized through a chemical co-precipitation method was combined with the highly
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Simulation of δ-phase precipitation behavior in hot compression deformation of inconel 718 superalloy Mater. Res. Express (IF 2.3) Pub Date : 2024-02-09 Xiangwei Kong, Zhibo Jin, Gongyu Liu, Fenglu Zhou, Liang Ma
A model for δ-phase precipitation in Inconel 718 superalloy during hot working, grounded in experimental data, was developed. A Cellular Automata (CA) simulation platform was designed to simulate the precipitation of second-phase particles in the alloy. The δ-phase precipitation behavior of Inconel 718 alloy during hot aging and hot compression was simulated. The results revealed that during hot aging
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Understanding the effect of TiCl4 treatment at TiO2/Sb2S3 interface on the enhanced performance of Sb2S3 solar cells Mater. Res. Express (IF 2.3) Pub Date : 2024-02-09 Ramsés Alejandro Miranda-Gamboa, Agustin Baron-Jaimes, Mario Alejandro Millán-Franco, Obed Pérez, Marina E Rincon, Oscar Andrés Jaramillo-Quintero
The continuous search for low-cost and environment-friendly materials in photovoltaic applications has become a priority, as well as the understanding of the various strategies to boost the photovoltaic performance. In this work, we investigate the effect of TiCl4 treatment on a compact TiO2 layer used as an electron transport material (ETM) in Sb2S3 planar solar cells. After TiCl4 treatment, TiO2
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Untangling free carrier and exciton dynamics in layered hybrid perovskites using ultrafast optical and terahertz spectroscopy Mater. Res. Express (IF 2.3) Pub Date : 2024-02-08 Folusho Helen Balogun, Nathaniel P Gallop, Dumitru Sirbu, Jake D Hutchinson, Nathan Hill, Jack M Woolley, David Walker, Stephen York, Pablo Docampo, Rebecca L Milot
Layered hybrid perovskites (LPKs) are promising as alternatives or additives to 3D metal halide perovskites for optoelectronic applications including photovoltaic cells, LEDs and lasers due to their increased stability. However, high exciton binding energies in these materials mean that excitons are the majority species under the operating conditions of many devices. Although the efficiency of devices
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Flexible pressure sensor constructed by polyurethane composite conductive sponge Mater. Res. Express (IF 2.3) Pub Date : 2024-02-08 Liang Dong, Chen Li, Youjun Zhou, Mengxi Zhao, Longgang Song, Peiying Han, Heng Zhang
As the main core component of wearable devices, flexible strain sensors have broad application prospects in health monitoring, motion monitoring, human-machine interface, rehabilitation, entertainment technology and other fields. In this paper, a rectangular sandwich resistive pressure sensor is constructed with porous conductive sponge, and its working mechanism is analyzed. The linearity of the sensor
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Thermomechanical response of liquid crystal elastomers: role of crosslinker density Mater. Res. Express (IF 2.3) Pub Date : 2024-02-08 N Derets, V Domenici, A Rešetič, B Zalar
In this work thermomechanical properties of main-chain liquid crystal elastomers (MC-LCEs) with different degrees of crosslinking were investigated, and gradual loss of thermomechanical response was observed on repetitive measurements. Specifically, six samples of MC-LCEs were prepared, with crosslinker-to-mesogen relative concentration ranging from 5% to 10% in steps of 1%. The obtained results were
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A photodetector based on p-GaN/N-MoS2 QDs heterojunction with high responsivity Mater. Res. Express (IF 2.3) Pub Date : 2024-02-07 Maymunah A Alwehaibi, Yasmeen A Khoja, Reem S Alghamdi, Fahdah A Alsuhaibani, Manar S Alshatwi, Ahmed A Aldamegh, Sarah A Aldakheel, Abdulaziz Alromaeh, Norah M Alwadi
Molybdenum disulfide (MoS2) is the most thoroughly investigated for photodetection applications with direct bandgap transition in low-dimensional structures, high light–matter interaction, and good carrier mobility. In this work, MoS2 quantum dots was synthesis by liquid exfoliation and characterized using scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Fluorescence emission
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Thermal activation and mechanical properties of high alumina coal gangue as auxiliary cementitious admixture Mater. Res. Express (IF 2.3) Pub Date : 2024-02-07 Mingjun Zhang, Liang Li, Fan Yang, Shigang Zhang, He Zhang, Jian An
In order to use high alumina coal gangue as auxiliary cementitious admixture via a simple and convenient thermal activation technique, the thermal transformation, mineral phase transformation and structure changes of coal gangue at calcining temperatures of 500–1000 °C were analyzed using x-ray diffraction (XRD), differential thermal Analysis (DTA), thermogravimetry (TG), infrared analysis (IR) and
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Evaluation of zirconia surfaces and shear bond strength after acid–etching with ultrasonic vibration Mater. Res. Express (IF 2.3) Pub Date : 2024-02-07 Xiaozhen Zhang, Hepeng Nie, Jiaxin Lv, Shanshan Yuan, Juan Wang, Kunzhan Cai, Jin Wu, Qingqing Zhang, Chunbo Tang
To evaluate the effect of surface reaction process after hydrofluoric (HF) acid etching using ultrasound and the shear bond strength (SBS) of resin cement to zirconia polycrystal (Y-TZP) ceramic. Y-TZP ceramic sheets were divided into rinsing group (Group P), ultrasonic cleaning group (Group C), and ultrasonic reaction + rinsing group (Group CP), and all the groups were treated for 5, 10, 20, 30, 40
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Hybrid SERS substrate based on cotton swab for sensitive detection of organic molecules Mater. Res. Express (IF 2.3) Pub Date : 2024-02-07 Hoang Duy Minh, Nguyen Duc Thang, Nguyen Thao Linh Chi, Luong Duc Anh, Le Ngoc Long, Tran Van Khai, Huynh Cong Khanh, Nguyen Dang Khoa, Tran Hoang Minh
For the last two decades, the development of substrates for Surface Enhanced Raman Spectroscopy (SERS) has been continuously pushed for better performances. In this research, we designed SERS substrates with better detection capability and more efficient sample collection. In particular, morphology-controlled Ag nanoparticles were deposited onto cotton swab (cotton Q-tip), followed by a thin cover
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A review on additive manufacturing for aerospace application Mater. Res. Express (IF 2.3) Pub Date : 2024-02-06 Radhika C, Ragavanantham Shanmugam, Monsuru Ramoni, Gnanavel BK
Additive manufacturing, a cutting-edge technology often colloquially known as 3D printing, is a transformative process used to meticulously fabricate complex components by adding material layer upon layer. This revolutionary manufacturing method allows for precise control and customization, making it a go-to choice in various industries, from aerospace to healthcare. The adroitness of additive manufacturing
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First-principles study on structural, mechanical, electrical, optical and thermal properties of lithium- and calcium-based catalysts Mater. Res. Express (IF 2.3) Pub Date : 2024-02-06 Meizhe Lv, Xiaofei Guo, Lichao Cai
This work presents a systematic first-principles study of the crystal structure, mechanical, electrical, optical, and thermodynamic properties of lithium- and calcium-based catalysts (Li3N, Ca3N2, Li3BN2, and Ca3B2N4) for the production of cubic boron nitride. The mechanical findings indicate that Ca3N2 is identified as a ductile material, with a higher B/G (20.04) and Poisson’s ratio (0.48). The other
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Improvement of wear and hot melt loss resistance of metal carbide layers on H13 steel Mater. Res. Express (IF 2.3) Pub Date : 2024-02-05 Zhi-Zhong Zeng, Dan Lin, Jian Shang
In this paper, H13 steel was pre-carburized. Then niobizing and vanadizing layers were prepared by pack cementation method. The high temperature friction and wear properties and hot melt loss properties of different layers and substrates were studied by microhardness tester, metallographic microscope, scanning electron microscope, energy dispersive spectrometer, high temperature friction and wear tester
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Deep insight into structural and optoelectronic properties of mixed anion perovskites Mater. Res. Express (IF 2.3) Pub Date : 2024-02-05 W A Chapa Pamodani Wanniarachchi, Håkon Eidsvåg, Thevakaran Arunasalam, Punniamoorthy Ravirajan, Dhayalan Velauthapillai, Ponniah Vajeeston
Here we present the optoelectronic properties of pure inorganic lead-free halide perovskites in the form of Cs2AgBiX 6 (X = Br, Cl, F, I) using the density functional theory calculations on cubic phase (Fm 3̅ m) and tetragonal phase (I4/m). First, all the structures of the two phases were optimized at the PBE level. Structural, electronic, optical properties, phonon, and thermal properties of Cs2AgBiX
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Probing the surface electrical properties of clay minerals with electrostatic force microscopy and kelvin probe force microscopy Mater. Res. Express (IF 2.3) Pub Date : 2024-02-02 Zonghua Qin, Xin Nie, Wenbin Yu, Shuguang Yang, Zongke Zhou, Shuqin Yang, Quan Wan
Many surface processes of clay minerals require in-depth understanding of their surface electrical properties, such as surface charge density, surface potential distribution, etc In this paper, electrostatic force microscopy (EFM) and Kelvin probe force microscopy (KPFM) were used to study the surface charge densities, surface potentials, electric field intensities, and electric field force gradients
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Upcycling waste tilapia (oreochromis niloticus) scales through a decellularization process for extracellular matrix extraction Mater. Res. Express (IF 2.3) Pub Date : 2024-02-01 Fernan M Arellano, Ronald Bual, Zesreal Cain Bantilan, Johnel Alimasag, Jemwel Aron, Lean Baclayon, Michael John Nisperos, Kit Dominick Don Valle, Princess Grace Ducao, Gladine Lumancas, Job Jr Pague, Marionilo Jr Labares, Hernando Bacosa
Tilapia scales, typically regarded as low-value biological waste, possess valuable organic components such as collagen and inorganic components such as hydroxyapatite. Converting these wastes into functional biomaterials like decellularized extracellular matrix (dECM) contributes to long-term fish waste management to achieve sustainable fish consumption and promote a circular economy by creating a
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Minimizing surface roughness and back wall dross for fiber laser micro-cutting on AISI 316 L tubes using response surface methodology Mater. Res. Express (IF 2.3) Pub Date : 2024-02-01 Erika García-López, Hector Siller, Elisa Vazquez-Lepe, José Guillermo Ramirez-Galindo, Ciro A Rodriguez
A response surface methodology (RSM) was performed to study the influence of spot overlapping and pulse energy on back wall dross and surface roughness for fiber laser cutting of AISI 316 L stainless steel minitubes. Three treatments were compared to expel molten material (argon gas, compressed air, and a control test). Our results indicated that back wall dross and dross height reduction is observed
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Study on compressive strength and sulfate corrosion resistance of limestone powder and waste glass powder mixed concrete Mater. Res. Express (IF 2.3) Pub Date : 2024-02-01 Chengjin Li
In order to enhance the utilization rate of waste powder and improve the sulfate corrosion resistance of limestone powder concrete, the evolution law of compressive strength, porosity, sulfate corrosion resistance of limestone powder and waste glass powder mixed concrete with different proportions was studied. It is found through that the early strength of limestone powder concrete cannot be enhanced
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Degradation mechanisms and modification strategies of nickel-rich NCM cathode in lithium-ion batteries Mater. Res. Express (IF 2.3) Pub Date : 2024-02-01 Dongyang Li, Wenbo Liu, Wenyu Liang, Rui Xu
Ni-rich Lithium Nickel Cobalt Manganese Oxide (NCM) cathode materials have garnered attention for their high specific capacity, but they grapple with issues of cycling stability, thermal performance, and safety. This concise yet comprehensive review embarks on an exploration, commencing with an examination of fundamental characteristics, including crystallographic structures and electrochemical properties
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Bleustein-Gulyaev waves in topological piezoelectric crystals Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 David Fernando Rojas Vallecilla, Juan Carlos Granada Echeverri
A topological insulator with piezoelectric properties is considered, and an action is proposed to find the equations of motion and the constitutive relations of the generalized coordinates of electrodynamic and elastic origin, paying special attention to the restructuring induced by the topological properties. The results are used to demonstrate that the electromechanical factor of the Bleustein-Gulyaev
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Remaining useful life prediction towards cycling stability of organic electrochemical transistors Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 Jie Xu, Miao Xie, Xinhao Wu, Kunshu Xiao, Yaoyu Ding, Libing Bai, Cheng-Geng Huang, Wei Huang
Organic electrochemical transistors (OECTs) show abundant potential in biosensors, artificial neuromorphic systems, brain-machine interfaces, etc With the fast development of novel functional materials and new device structures, OECTs with high transconductance (gm > mS) and good cycling stabilities (> 10,000 cycles) have been developed. While stability characterization is always time-consuming, to
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Thermally controlled electromagnetically induced transparency metamaterial through the near-field coupling of electric and toroidal resonances Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 Chang Shu, Jinshuo Mei
We investigate a thermally controlled electromagnetically induced transparency terahertz metamaterial through the near-field coupling of electric and toroidal resonances. The fundamental unit consists of a composite design incorporating both metal and vanadium dioxide components aimed at inducing toroidal resonance, along with a pair of metal strips generating electric resonance. Simulation results
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Microstructure and mechanical properties of a newly developed Ti-6Al-2Mo-2Sn-2Zr-2Cr-2V alloy fabricated by laser directed energy deposition Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 C Wang, J Z Yi, G Yang, J X Wang, J B Wu, Z Zhu, C X Wang
With the rapid development of aviation industry, the study of novel titanium (Ti) alloy with superior mechanical properties is of great significance. In this paper, a newly developed Ti-6Al-2Mo-2Sn-2Zr-2Cr-2V alloy was fabricated by laser directed energy deposition (L-DED), which exhibits coarse β columnar grains containing the basket-weave structure knitted with α phases and β phases. After solution
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Nanostructure characteristics of three types of platelet-rich fibrin biomaterial: a histological and immunohistochemical study Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 Thuy-Duong Nguyen-Thi, Bao-Song Nguyen-Tran, Thuan Dang-Cong, Margherita Maioli, Tung Nguyen-Thanh
Background. Platelet-rich fibrin (PRF) is a blood-derived biomaterial that has shown potential in regenerative medicine. The objective of this study was to characterize the structure of fibrin network nanoparticles and cellular components using histological and immunohistochemical techniques. Methods. Three different types of PRF were manufactured: Choukri’s platelet-rich fibrin (Ch-PRF), pure platelet-rich
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Low-cycle fatigue mechanical behavior of 30CrMo steel under hydrogen environment and numerical verification of chaboche model Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 Y B Guan, Q Y Wang, C He, L Fu, L Lin, Y Q Zhang, Y R Luo, Z G Wang, X Wu
In order to investigate the fatigue behavior of the hydrogen storage material, 30CrMo steel, in a hydrogen environment, an electrochemical hydrogen charging method was employed. Low-cycle fatigue experiments were conducted on the material to obtain half-life stress–strain hysteresis curves, cyclic response characteristics, and strain-life relationships under different hydrogen charging durations. The
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Dual heteroatom-doped biomass-derived porous carbon anode for superior sodium storage Mater. Res. Express (IF 2.3) Pub Date : 2024-01-31 Yinyin Li, Jianhui Zhu, Liang Song, Yanyi Wang, Dingtao Ma, Shichang Sun, Peixin Zhang
The green preparation of anode materials is desirable for high-performance sodium-ion batteries. In this paper, a N/S co-doped porous carbon was prepared from longan shell via a facile and low-cost route. Heteroatom doping increases the defect sites to facilitate Na+ storage and improves the electronic conductivity of the carbon material. The N/S co-doped porous carbon prepared using CS(NH2)2 with
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Microstructure and magnetic properties of MnBi powders prepared by various ball milling processes Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 Chengyu Li, Yang Yang, Shunda Lu, Zhen Xiang, Linfeng Chen, Nguyen Xuan Truong, Huiyu Xu, Wei Lu
The MnBi intermetallic compound with high purity of low-temperature phase MnBi (LTP-MnBi) and high maximum energy product (BH)max were successfully prepared using various ball milling processes. The effects of ball milling speed and duration on the microstructures, phase compositions, and magnetic properties of MnBi alloys were systematically investigated. The particle size of MnBi and the purity of
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Process optimization of quenching and partitioning by machine learning aided with orthogonal experimental design Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 Na Dai, Jian Li, Hai Qin, Guolin He, Pengfei Li, Zhenghua Wu, Shanlin Wang
Owing to a balance between toughness and strength, quenching and partitioning (Q&P) is promising in steel industry. However, for a new material or a new process, it remains challenging how to get the best parameters in low cost way. Here, a novel workflow combining orthogonal experimental design with artificial neural network and particle swarm optimization, was adopted to explore the relationship
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Applied research on methane steam reforming properties of porous structural catalyst fabricated by selective laser melting technology Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 Xinghua Liang, Mingzhao Wei, Dongdong Dong, LingXiao Lan, Ge Yan, Xingchen Yan, Yujiang Wang, Jianglong Yi, Cheng Chang, Min Liu
In this paper, structured catalysts with different specific surface areas were fabricated by selective laser melting (SLM), and their catalytic properties were tested by methane steam reforming experiments. The results show that the structured catalyst prepared by SLM shows high structural stability and catalytic activity with H2 yield of 51.44% and CH4 conversion of 71.94%. The structured catalyst
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Structural and magnetic properties of Fe and Ni co-doped SnO2 nanoparticles prepared by co-precipitation method Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 Mst Halima Khatun, Ruhul Amin, Md Samiul Islam Sarker, Md Rasel Shikder, Suravi Islam, Md Shahjahan
In this research work Fe and Ni co-doped Tin oxide (SnO2) nanoparticles have been prepared by co-precipitation method. The samples were prepared at various combination of Fe and Ni from 0% up to 10%. The produced nanoparticles were studied by x-ray diffraction (XRD), Scanning Electron Microscopy (SEM), UV–vis Spectrophotometer, Fourier Transformation Infrared Spectroscopy (FTIR) and Vibrating Sample
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Third order nonlinearity examined by pulsed and CW lasers: an organic urea barbituric acid (UBA) single crystal for optical limiting application with DFT study Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 A Suresh, RO MU Jauhar, T C Sabari Girisun, N Manikandan, G Vinitha
Bulk size of urea barbituric acid single crystal which has not been reported earlier was successfully grown by slow evaporation solution growth method. Single-crystal XRD brought out the lattice constant and the crystal system is observed to be monoclinic with space group P. Functional group of UBA were determined by FT-IR. UBA crystal is entirely visible from 270 to 900 nm with linear optical energy
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The effect of MoAlB substitutions on the oxidation behavior of ZrB2-SiC Composites at 1600 °C Mater. Res. Express (IF 2.3) Pub Date : 2024-01-29 Yashuang Xu, Ling Liu, Yanbo Liu, Zhuang Ma, Shirui Yang
ZrB2-SiC ceramics are potential candidates for thermal protection materials for re-entry and hypersonic vehicles. Phases are typically added to ZrB2-SiC to enhance the oxidation resistance of the material. MoAlB is an attractive nanolaminated ternary boride compound. Due to its damage tolerance, crack healing ability, and good oxidation resistance, MoAlB is a promising material for high-temperature
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Exploring acoustic properties of banana fiber composites with elastomeric filler through a computational approach Mater. Res. Express (IF 2.3) Pub Date : 2024-01-25 Prajwal Jayaraman, Anand Pai, Marcos Rodriguez-Millan, Satish Shenoy B, Chethan K N, Sriharsha Hegde
In recent years, there has been a significant increase in the use of natural fibers as reinforcements in composites. This trend is mainly driven by their eco-friendly nature and wide availability. The objective of this research is to explore the extensive potential of combining Banana Fiber with Tyre Rubber Particles (TRP) as elastomeric fillers in natural fiber composites, focusing primarily on their
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Sputter-deposition of ultra-thin film stacks from EUROFER97 and tungsten: characterisation and interaction with low-energy D and He ions Mater. Res. Express (IF 2.3) Pub Date : 2024-01-25 Jila Shams-Latifi, Eduardo Pitthan, Tuan Thien Tran, Rajdeep Kaur, Daniel Primetzhofer
We have sputter-deposited stacks of ultrathin layers from EUROFER97 and tungsten on silicon substrates. Ion beam analysis techniques are used for composition characterisation and microscopy methods are employed for structural examination. The films are subsequently studied by time-of-flight low-energy ion scattering (ToF-LEIS) for primary 10 keV He+ and 8 keV D+ ions to demonstrate an approach of providing
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Delicate control of graphite flakes alignment in the copper matrices via powder selections and filling processes Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Dong Zheng, Zhonghua Huang, Zhengyan Shen, Renjun Wu, Khashayar Khanlari, Gang Ji, Jean-François Silvain
Due to the anisotropy properties of graphite flakes (Gf), the control of their orientation inside copper (Cu) matrice is strictly correlated with the final properties of such metal matrix composite (MMC). In this study, MMCs are fabricated by powder metallurgy process using three types of Cu powder particles (flake, dendritic, and spherical) as well as different powder filling methods. By using Cu
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Influence of Mg/Si ratio on the microstructure and formability of 6061 cast-rolled sheets Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Yu-Chong Sun, Yao-Hui Jin, Zhen Xu, Tan Zhao, Ning Wang, Long-Hao Zhu, Jie Geng
Three kinds of 6061 aluminum alloy cast-rolled plates with Mg/Si mass ratios of 1.23, 1.45, and 1.7 are prepared using NF6–300 vertical twin-roll casting and rolling mill. Metallurgical microscope (OM), x-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive spectrometer (EDS), room temperature tensile test, and other analysis methods studied the influence law and mechanism of
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High temperature oxidation behaviors of Al/Cr composite coating on Ti2AlNb alloy Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Zhengang Yang, Wenping Liang, Linquan Hu, Zhengwen Zhang, He Wang, Bowen Chen
The Al/Cr coatings were deposited on Ti2AlNb alloy by magnetron sputtering and double glow plasma alloying technology to improve the oxidation resistance. The morphology of the protective coating was investigated by scanning electron microcopy and the phase composition of the coating was analyzed using x-ray diffraction. The results suggested that the protective coating with multilayer structure was
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Experimental study of the effect of the concentration of water/polyalkylene glycol solutions on heat transfer in steels subjected to quenching Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Brandon Farrera Buenrostro, Constantin Alberto Hernández Bocanegra, José Angel Ramos Banderas, Luis Enrique Molina Valdovinos, Nancy Margarita López Granados, Sami Vapalahti
In this work, the heat transfer coefficients were determined utilizing an experimental study for cooling a 15B35H boron steel, using aqueous solutions of polyalkylene glycol (PAG) as a cooling fluid. A cooling tank was designed and built to allow the fluid recirculation, where the effect of agitation and the PAG content in a concentration range of 2%–6% vol. were analyzed. The thermal histories of
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Preparation of multi-functional sepiolite-based foam concrete and its adsorption and thermal insulation properties Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Ji Zhou, Zhenyu Zhao, Zhimin Zou, Yanhuai Ding
Foam concrete is one of the most valuable porous materials used in civil and industrial buildings. Sepiolite, a fibrous hydrous magnesium silicate, possesses exceptional qualities such as a low thermal conductivity, non-polluting nature, and eco-friendliness. In this paper, a multi-functional sepiolite-based foam concrete has been fabricated using a physical foaming technology. The high sepiolite content
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Evaluation of the role of ionic liquid as a modifier for carbon paste electrodes in the detection of anthracyclines and purine-pyrimidine-based anticancer agents Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Isha Soni, Amisha Kumari, Gururaj Kudur Jayaprakash, Praveen Naik, Shashanka Rajendrachari
Ionic liquid has become a very fascinating modifier in the past few years. With the help of an ionic liquid-modified carbon paste electrode (CPE), electrochemistry has become a great way to find different drugs with a lower detection limit and high sensitivity and selectivity. The circulation of electrons of the ring in the cationic part of ionic liquid enables in lowering of the electron resistance
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A new strategy for the determination of dinobuton fungicide by square wave stripping voltammetry on the multi-walled carbon nanotube electrode Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Zeynep Murathan, Recai İnam, Ersin Demir
Dinobuton is a fungicide with a dinitrophenol group pesticide, and its electrochemical behavior was investigated by cyclic voltammetry (CV) and square wave stripping voltammetry (SWSV) on a multi-walled carbon nanotube paste electrode (MWCNTPE). First of all, optimum parameters such as pH, step potential, frequency, puls amplitude, deposition time and, deposition potential were specified by using SWSV
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High sensitive optical thermometry based on redshift of charge transfer band in Ba2CaWO6:Eu3+ phosphors Mater. Res. Express (IF 2.3) Pub Date : 2024-01-24 Jialiang Xie, Lei Zhong, Sha Jiang, Yutong Wang, Yanru Li, Binyao Huang, Li Li, Yongjie Wang, Guotao Xiang, Xianju Zhou
Optical thermometry has emerged as a promising technology to overcome the limitations of traditional thermometry techniques. Herein, we report an Eu3+-activated tungstate Ba2CaWO6 phosphors for luminescent thermometry with a maximum relative sensitivity of 4.84% based on a single-band ratiometric technique. By monitoring the 5D0 → 7F1 (595 nm) emission of Eu3+, excitation spectrum of the as-prepared