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Fabrication and properties of SiO2f/SiO2 composite ceramic based on stereolithography technology J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-03-06 Jie Liu, Rongquan Zhu, Tianlei Zhang, Xiaoming Wang, Ye Tang
During the light curing process, the high transmittance of fused quartz leads to overcuring of the paste, thereby affecting its forming precision. To address this issue, aniline black dye was incor...
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Effects of sintering parameters on the preparation and properties of foamed ceramics from cyanide tailings J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-03-05 Maoxiang Niu, Xuexiang Ge, Yonggang Dai, Xing Jin, Weiwei Sun, Xulong Hu
In this study, foamed ceramics were successfully prepared using cyanide tailings (CTs) with a high sulfur content as the main raw material. The effects of sintering temperature, holding time, and h...
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Anorthite ceramics: grog and clay selection for lowering the sintering temperature J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-02-21 Radomir Sokolar, Martin Nguyen
A research investigation was conducted on two variables that are indicative of plastic raw materials based on kaolin vs. interstratified illite-smectite clay and a non-plastic admixture including g...
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Correlation between phase, microstructure and electrical properties of Ba0.7Sr0.3TiO3-modified Bi0.5Na0.5TiO3-0.06BaTiO3 lead free ceramics J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-02-08 Pimpilai Wannasut, Methee Promsawat, Anucha Watcharapasorn, Sukum Eitssayeam, Supon Ananta, Orawan Khamman
Environmentally friendly Pb-free piezoelectric ceramics are essential for electronic industries and devices utilizations owing to their excellent piezoelectric properties which enable powerful sens...
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Effect of silver/zinc co-dopant on enhancing cytotoxicity and antibacterial property of spray pyrolyzed bioactive glasses J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-02-05 Henni Setia Ningsih, Frizka Vietanti, Chin-Chean Wong, Yu-Jen Chou
Owing to the advancement of bioactive materials, bioactive glasses (BGs) are progressively being recognized as promising choices in fields of bone and tissue engineering with their superior propert...
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Recent progress of porous geopolymers: nanoporosity regulation toward fundamental applications J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-02-05 Hui-Yu Zhao, Gui-Lang Liu, Zhegang Huang, Long Yi Jin, Yi-Rong Pei
Porous geopolymers have been the promising subject over the last decade owing to the functional domains from high surface area, structural stability upon heat and chemists, as well as eco-friendly ...
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Investigation of electrical, corporeal, ocular, and aquaphobic properties of zirconia thin-films by varying substrate temperature for high voltage insulators J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-01-25 Sujit Kumar, Sasanka Sekhor Sharma, Jayant Giri, Vikramaditya Dave, Mohammad Amir, Hitesh Panchal
The addition of ZrO2 nanoparticles to porcelain insulators and its influence on their electrical and corporeal characteristics are studied throughout a wide range of sintering temperatures. The DC ...
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Microstructural characterization of Ce-TZP/Al2O3 after degradation in water J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-01-25 Che-Lun Tung, Yung-Shin Cheng, Chi-Shan Tien, Pei-Yi Hsu, Wei-Hsing Tuan, Jin-Ren Chen, Po-Liang Lai, Ying-Ying Wu, Shao-Ju Shih, Dusan Galusek
In this study, the long-term resistance of Ce-TZP/Al2O3 specimens to hydrothermal treatment is evaluated in terms of their microstructure. Treatment of the specimens is carried out in an autoclave ...
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Bioluminescence-induced photocatalysis on semiconducting oxide nanosheets J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-01-05 Kai Kamada, Hideaki Sano, Osamu Nakagoe, Shuji Tanabe, Jae-Min Oh
A novel semiconductor photocatalytic reaction system employing a photo-emitting enzyme as an internal light source is pro-posed in the present study. The system completely overturns common sense th...
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Ilmenite-type structure and pervoskite structure mix-phase ceramics at microwave frequency J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2024-01-05 Yuan-Bin Chen
The impact of CuB2O4 additive used as a sintering aid on the microstructures and microwave dielectric characteristics of mixed phase (Mg0.95Zn0.05)Co0.05TiO3-Ca0.6(La0.9Y0.1)0.2667TiO3 ceramics was...
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Influence of MgO-Al2O3 hollow sphere content on the microstructure and mechanical properties of calcium hexaluminate porous ceramics J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-12-08 Anbang Chen, Lang Li, Weili Ren, Chong Wang, Qingyuan Wang
Calcium hexaluminate (CA6) porous ceramics were prepared by foaming and pore-forming agent methods, with Al2O3 and calcium aluminate cement (CAC) as raw materials and magnesium aluminum spinel holl...
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Magnetically separable CeO2/CoFe2O4 heterojunction photocatalysts for dye degradation: characterization and mechanism J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-12-05 Panpailin Seeharaj, Patchara Pasupong, Kittisak Choojun
This study developed magnetically separable CeO2/CoFe2O4 heterojunction photocatalysts for dye degradation to reduce water pollution. The CeO2/CoFe2O4 nanocomposites with different CeO2 ratios (10,...
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Achieving high energy storage performance and efficiency in lead-free SrTiO3 ceramics via neodymium and lithium co-doping technique J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-17 Mahmoud S. Alkathy, Srinivas Pattipaka, Mansour K. Gatasheh, H. A. Kassim, Mohamed Saad Daoud, Jose A. Eiras
There is an immediate demand for eco-friendly, high-performance, and highly stable energy storage materials for pulse power systems. Ceramics based on SrTiO3 have a high breakdown strength (BDS) an...
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Synthesis, characterization, optical, and sensing investigations for Fe-BDC doped with 10 wt.% of activated food waste biochar J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-17 S. Alfadhli, A.A.A. Darwish, S. A. Al-Ghamdi, Meshari M Aljohani, Seleim M. Seleim, Mohamed E. Mahmoud, Syed Khasim, Taymour A. Hamdalla
Traditional methods of synthesizing nanomaterials via physical or chemical methods are typically expensive and result in toxic byproducts that adversely affect the environment. In this study, we pr...
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Effect of CeO2-Y2O3 sintering aids on the microstructure and properties of corundum-based composite ceramics J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-17 Yuhang Du, Chenxi Song, Yulin Wei, Deli Ma, Baocai Pan, Mengyong Sun, Guopu Shi, Zhi Wang, Qinggang Li
Reducing the preparation cost of alumina ceramics has received significant attention, as alumina is one of the most widely used structural ceramics. In this study, corundum-based composite ceramics...
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An electromagnetic coupling treatment for improving the cutting performance of cemented carbide-coated tools J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-17 Kaien Sun, Bo Zeng, Yi Qin, Chengjun Deng, Yi Yang, Kunlan Huang, Jie Wang
To improve the cutting performance and prolong the service life of a carbide-coated tool in the process of ductile iron machining, an electromagnetic coupling treatment (EMCT) was carried out. The ...
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Parametric estimation analysis of compressive stress effects on piezoelectric properties of PZT ceramic J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-16 Jong-Ho Kim, Il-Gok Hong, Ho-Yong Shin, Hyo-Jun Ahn, Jong-In Im
In this study, the frequency and capacitance of piezoelectric materials due to compressive stress were analyzed, and the overall material properties (compliance matrix, piezoelectric charge constan...
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Hydrostatic piezoelectric properties of 1-3 type piezo-composite with a porous polymer matrix J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-11-15 Jong-Ho Kim, Il-Gok Hong, Ho-Yong Shin, Hyo-Jun Ahn, Jong-In Im
Piezoelectric sensors for underwater sonar require high hydrostatic piezoelectric properties (dh, gh and HFOM), and research is being conducted on various types of piezoelectric composites to impro...
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Magnetic biomaterials with nanostructures for improved medication delivery and bone regeneration. First-level investigation J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-30 Vikas Anand, Ashun Chaudhary, Meenakshi, Gaurav Bhatia, Pawan Heera, Sourbh Thakur
The co-precipitation method is used in the lab to create a sample of the ferromagnetic 45CaO-30P2O5-15SiO2-10Fe2O3 (mol%). In simulated body fluid (SBF), the ability of the ferromagnetic sample to ...
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Synthesis of BaTiO3/Ag nanocomposites using a sonochemical process and low-temperature sintering J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-29 Yamato Hayashi, Tatsuya Shishido, Kento Seki, Hirotsugu Takizawa
A barium titanium oxide/silver (BaTiO3/Ag) nanocomposite powder was synthesized using a sonochemical process. By irradiating an ethanol solution of BaTiO3 and silver oxide (Ag2O), Ag2O thermally de...
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Effect of the heating rate on crystallization and densification of TiO2 films prepared from alkoxide solutions containing various organic additives J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-28 Hiroaki Uchiyama, Yuji Tanaka, Shouta Mizuguchi
The effect of the heating rate on crystallization and densification of sol–gel-derived TiO2 films has been investigated. The TiO2 gel films were prepared from Ti(OC3H7i)4 solutions containing alcoh...
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Influence of Na2SO4 molten salts on the self-healing behavior of Ni/Al2O3 composites J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-28 Daisuke Maruoka, Kentaro Harada, Taichi Murakami, Eiki Kasai
The objective of this study is to investigate the influence of Na2SO4 molten salt on the self-healing behavior of Ni/Al2O3 for its utilization as the middle pressure ceramic turbine blades of aircr...
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Optical and mechanical properties characterizations of transparent polycrystalline MgAl2O4 spinel J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-28 Sawao Honda, Yuki Ogihara, Akio Ikesue, Yan Lin Aung, Shinobu Hashomoto, Yuji Iwamoto
The microstructure and mechanical properties of polycrystalline spinel ceramics (MgAl2O4) with high translucency were investigated. Several kinds of polycrystalline spinel ceramics were prepared un...
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Development of hybrid multi-head, multi-material paste and ink extrusion type 3D printer for biomedical applications J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-17 Jishita Ravoor, S.Renold Elsen, Mahendran Thangavel, Dhanabal Arumugam, Deepan Karuppan
Additive manufacturing is a fabrication technique where materials are built up layer-by-layer allowing the realization of complex designs. Ceramic additive manufacturing is steadily increasing in t...
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Effect of Sr-doping on electronic and thermal properties of Pr2-xSrxFeCrO6 (0≤x≤1) oxide materials synthesized by using sol-gel technique J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-10 Lav Kush, Sanjay Srivastava, Sanjay Kumar Vajpai, Serguei V. Savilov
ABSTRACT The thermoelectric properties of a new type of Pr2-xSrxFeCrO6 double perovskite were investigated at higher temperature after its sol-gel synthesis. The XRD results validate the single-phase orthorhombic structure, and the crystallite sizes meet the morphological measurements. XPS examination, which formed the defect sites in these oxides, confirmed the varied oxidation states of constituents
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Melt pool size of optical glass irradiated by semiconductor laser J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-08-03 Weijie Fu, Lianshuang Ning, Xiaoping Zhou, Xinming Zhang
ABSTRACT Using a continuous laser to soften glass locally is a novel way of selective glass forming. Due to gaussian distribution of laser power density, a temperature gradient will be generated on glass treated with localized irradiation by laser, which brings about the coexistence of a glass state and a viscoelastic state. This situation creates a bulge on the surface of the softened area. Based
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A Synergic Effect of Bi-metallic Layered Hydro-Oxide Cocatalyst on 1-D TiO2 Driven Photoelectrochemical Water Splitting J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-07-25 Rana Basit Ali, Qadeer Akbar Sial, Young Jae Lee, Muhammad Waqas, Shankara S. Kalanur, Hyungtak Seo
ABSTRACT Photoelectrochemical (PEC) water splitting is one of the most sustainable approaches for converting solar energy into hydrogen fuel. Affordable and robust photoelectrodes are crucial for the commercialization of PEC technologies. Recently, transition metal-based co-catalysts, especially Ni- and Fe-based catalysts, have attracted much interest owing to their exceptional OER characteristics
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Electrocatalytic property of Zn-Al layered double hydroxides for CO2 electrochemical reduction J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-07-18 Noboru Yamaguchi, Ryosuke Nakazato, Keeko Matsumoto, Masako Kakesu, Nataly Carolina Rosero-Navarro, Akira Miura, Kiyoharu Tadanaga
ABSTRACT Electrocatalytic CO2 reduction reaction (CO2RR) has attracted considerable attention as a technology to recycle carbon dioxide (CO2) into raw materials for chemicals using renewable energies. In this study, the electrocatalytic CO2RR activity of Zn-Al layered double hydroxides (LDHs) was studied. Zn-Al LDHs loaded carbon sheets were prepared, and CO2 RR was performed using CO2-saturated KHCO3
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Synthesis, densification, and cation inversion in high entropy (Co,Cu,Mg,Ni,Zn)Al2O4 spinel J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-29 Cole A. Corlett, Nina Obradovic, Jeremy L. Watts, Eric W. Bohannan, William G. Fahrenholtz
ABSTRACT The synthesis, densification behavior, and crystallographic site occupancy were investigated for four different spinel-based ceramics, including a high-entropy spinel (Co0.2Cu0.2Mg0.2Ni0.2 Zn0.2)Al2O4. Each composition was reacted to form a single phase, but analysis of X-ray diffraction patterns revealed differences in cation site occupancy with the high-entropy spinel being nearly fully
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Effect of sintering temperatures on temperature coefficient of capacitance of KCa2Nb3O10 bulk-layered perovskite J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-27 Jeong-Yeon Kim, Gyo-Hee Hong, Se Yun Kim, Seong-Mee Hwang, Weon Ho Shin, Won-Seon Seo, Sang-il Kim, Hyun-Sik Kim
ABSTRACT Multilayer ceramic capacitors (MLCCs) for electric vehicles require their room temperature capacitance to change ≤ ±15% at −55°C to 200°C. The dielectric constant (ε) of BaTiO3, a dielectric material widely used in MLCCs, drops at >125°C making its application to electric vehicles difficult. Here, we propose KCa2Nb3O10 (KCNO)-layered perovskite as a strong candidate for electric vehicle MLCCs
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Impedance spectroscopy technique for estimating the oxidation of the PyC interphase layer in a SiCf/SiC ceramic matrix composite J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-23 Kyung Ho Kim, Yoon Soo Han, Sahn Nahm, Sung-Min Lee
ABSTRACT A new technique using impedance spectroscopy was developed to estimate the oxidation kinetics of the pyrolytic carbon interphase layer in SiCf/SiC ceramic matrix composites. The AC impedance Nyquist plot showed two semicircles that were curve-fitted using an equivalent circuit with two constant-phase element components. The analysis results revealed that the capacitance in the low-frequency
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Tribology and in-vitro biological characterization of TiO2 addition on ceria stabilized zirconia-toughened alumina (CSZTA) composite J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-21 Obulapathi Eggidi, Ajoy Kumar Pandey
ABSTRACT The effect of TiO2 addition on tribology and in-vitro biological characteristics of ceria-stabilized zirconia-toughened alumina (CSZTA-TiO2) ceramic composites were examined and presented in this study. Through the powder metallurgy route, the TiO2 added to CSZTA samples were synthesized and sintered (air environment). Additionally, the pin on the disc machine was used to examine the wear
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Enhanced energy storage and fast discharge properties of BaTiO3-Bi(Ni0.5Zr0.5)O3 ceramics modified by (Bi0.5Na0.5)0.7Sr0.3TiO3 J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-20 Hailin Zhang, Haochen Duan, Huanfu Zhou, Xiuli Chen
ABSTRACT Relaxed ferroelectric ceramics with good energy storage stability, high energy storage density and efficiency, and high charge/discharge rates have shown great potential for commercial applications. In this paper, 0.85[0.9BaTiO3 −0.1Bi(Ni0.5Zr0.5)O3]−0.15(Bi0.5Na0.5)0.7Sr0.3TiO3 ceramic was prepared via a solid – phase reaction method by doping (Bi0.5Na0.5)0.7Sr0.3TiO3 into 0.9BaTiO3 > −0
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Microstructure and mechanical properties of SiO2-Al2O3-CaO-ZrO2 based glazes containing zircon and diopside phases J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-11 Yeonju Kim, Kangduk Kim
ABSTRACT MgO was added to the SiO2-Al2O3-CaO-ZrO2-based glaze to produce a high-hardness glaze by forming a composite crystal phase. The effects of MgO addition on the surface properties of the glaze were analyzed through crystal phase and microstructural investigations, and the whiteness, roughness, gloss, wear rate, and hardness were measured. When the amount of added MgO increased by 2.20 wt% or
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Synthesis of spherical-like β-Si3N4 powder by direct nitridation of silicon saw dust J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-05 Yu Lan, Xiao-Min Li, Lin Hu, Zuo Song, Lang Zhou, Xiu-Qin Wei, Chuan-Qiang Yin
ABSTRACT Spherical-like β-phase silicon nitride (β-Si3N4) powder has been synthesized by direct nitridation of silicon saw dust recovered from the photovoltaic industry in ammonia gas (NH3) at 1300°C with calcium fluoride (CaF2) as additive. The X-ray diffraction (XRD) analysis indicates that the formation of β-Si3N4 is enhanced and accelerated in NH3 compared to nitrogen (N2). The scanning electron
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Effect of magnesium oxide in multiphase additive on the formation process and morphology of β-Si3N4 whisker J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-06-01 Ziyue Wang, Qianqian Wu, Lujie Wang, Qian Qi, Ning Cui, Tongyang Li, Yuan Yu, Huaguo Tang, Zhuhui Qiao
ABSTRACT β-Si3N4 whiskers were synthesized by using a moderately low-temperature heat-treatment process, with the aid of a low weight fraction of multiple aids (Y2O3-MgO). The synthesis conditions and aspect ratio of the whiskers were adjusted by changing the MgO content in the composite additive system, heat treatment temperature and holding time. The phase composition and morphology of the whiskers
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Resistive switching behaviors of oxygen-rich TaOx films prepared by reactive magnetron sputtering J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-05-27 Ziheng Ding, Jia Tang, Fangren Hu, Wei Zhang
ABSTRACT In this work, Ta2O5 films were first deposited on Si substrates by reactive magnetron sputtering of a Ta metal target at various substrate temperatures, RF powers and sputtering pressures. The crystal characteristics of these films can be effectively tailored by controlling the sputtering process. Based on the optimized process parameters, tantalum oxide (TaOx) films with different oxygen
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Effect of SiO2/Al2O3 ratio on sintering behavior, crystallization behavior and properties of diopside-anorthite glass-ceramics J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-05-14 Tao Chen, Tongjiang Peng, Hongjuan Sun, Xiang Li
ABSTRACT Diopside-anorthite glass-ceramics were prepared by direct sintering with extracted titanium slag (ETS), coal fly ash (CFA) and quartz sand (SA), the effect of sintering temperature (1120–1180°C) and the SiO2/Al2O3 ratio (1.85–2.63) on the phase transitions, physical characteristics and microstructure was examined by adding CFA (28.5–40%) and SA (0–12.5%) to ETS (60%). The results revealed
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Understanding of doping sites and versatile applications of heteroatom modified BaTiO3 ceramic J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-04-21 M. Atikur Rahman
ABSTRACT Due to its multifunctional properties, BaTiO3(BT) is a crucial ceramic material in the semiconductor market. The development of doping techniques has received considerable attention in recent years as efforts continue to enhance the attractive qualities of BaTiO3 and broaden the range of modern technologies in which it can be used. The synthesis method and doping components must be carefully
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Effect of TiO2 on mechanical and thermal properties of Al2O3-based coating via atmospheric plasma spraying J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-04-20 Hansol Kwon, Yeon Woo Yoo, Youngjin Park, Uk Hee Nam, Eungsun Byon
ABSTRACT In this study, Al2O3-based coatings with varying TiO2 contents (0, 3, 13, and 40%) were fabricated using atmospheric plasma spraying technique. To compare the superiority of the samples, their mechanical (Vickers hardness and adhesion strength) and thermal properties (thermal conductivity and thermal shock resistance) were characterized. As observed, Al2O3-40%TiO2 (A-40T) coating exhibited
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Preparation and properties of HfB2-HfC and HfB2-HfC-MoB composites by reactive spark plasma sintering J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-04-11 Yangshuo Bai, Weixia Shen, Chao Fang, Liangchao Chen, Qianqian Wang, Biao Wan, Xiaopeng Jia, Yuewen Zhang, Zhuangfei Zhang
ABSTRACT Ultra-high-temperature ceramics are required for many aerospace applications. In this work, HfB2-30 vol.% HfC and HfB2-26 vol.% HfC-43 vol.% MoB high-density composites were prepared by one-step in-situ reactive spark plasma sintering (R-SPS) using Hf, B4C and Mo powders as starting materials. The influences of sintering temperature on the densification mechanism, microstructural evolution
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Microstructure and strength of microporous MgO refractory aggregates with nano-sized pores J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-04-03 Chongwen Wang, Wen Yan, Junjie Yan, Zhe Chen, Xiao Wang, Guangqiang Li
ABSTRACT In this work, microporous MgO refractory aggregates with nano-sized pores were prepared by in situ decomposition method using Mg(OH)2 as raw material. The effects of firing temperatures (1600–1700°C) and compacting pressures (100–200 MPa) on the microstructures and properties of microporous MgO refractory aggregates were thoroughly studied. The results showed that the microporous MgO refractory
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High purity Al2O3 ceramic:Metallizing strategy, microstructure and sealing properties J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-03-31 Dongcai Li, Cangbao He, Yong Sheng Wang, Wei Su, Fengjun Zhang, Haiyan Xu
ABSTRACT A high purity Al2O3 ceramic (HPAOC) metallizing strategy was developed via gradient coating process of metallizing pastes with different ratios of Mo to manganese glass (MnG) contents, to improve the wettability and reactivity of metallized layer (ML) to the ceramic substrate and the secondary metallizing layer or sealed metals. Self-made HPAOC samples firstly coated by a layer of metallizing
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Preparation of ZnAl2O4 and its effect on fatigue resistance of alumina castables J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-03-15 Lihua Lv, Zhanmin Wang, Xiying Cao, Shuang Han, Chaochao Ju, Jun Han
ABSTRACT Refractories subject to loading and unloading repeatedly because of physical effects and thermal stress attack in the service process, which is an important issue shortening the service life of the thermal equipment. Therefore, researches of predicting the service life of refractories under cyclic loading have the guiding significance. The present work investigated the synthesis of ZnAl2O4
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Effect of AlN addition on the reaction sintering of Al2TiO5 composites fabricated by spark plasma sintering J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-03-15 Mettaya Kitiwan, Duangduen Atong, Fumio Endo, Takashi Goto
ABSTRACT Fully dense Al2TiO5–Al2O3–TiN (ATN) composites were fabricated by reactive sintering using spark plasma sintering at 1400°C for 5 min under 100 MPa in vacuum. An equimolar ratio of Al2O3:TiO2 was used as the starting powder, while the addition of 0–36 mol% AlN was investigated. The thermodynamic calculation indicates that the initial reaction was that of TiO2 and AlN, forming TiN and Al2O3
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Nd-doped NASICON-type nanophosphors for near-infrared excitation and emission J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-03-15 Mizuki Watanabe, Masahiro Itoh, Ryohei Oka, Shintaro Ida, Toshiyuki Masui
ABSTRACT Neodymium-doped phosphates, (Nd1-xGdx)0.33Zr2(PO4)3 (0 ≤ x ≤ 1), were synthesized by co-precipitation. (Nd1-xGdx)0.33Zr2(PO4)3 was obtained as a single-phase and was confirmed to be a NASICON-type structure consisting of a three-dimensional network of PO4 tetrahedra sharing corners with ZrO6 octahedra. The particle size of the (Nd1-xGdx)0.33Zr2(PO4)3 samples was in the nanoscale, which is
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Evolution of the Cu2ZnSnS4 phase based on the sulfurization-crystallisation duration of the CuS/SnS/ZnS stack formed by thermal evaporation J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-02-27 N. Cruz Santiago, E. Ramirez Morales, T. González Sánchez, R. Castillo Palomera, L. Rojas Blanco, G. Hernández Galvez, E. Miranda Mandujano, C. Ricárdez Jiménez, A. Trujillo Narcía, Omar Sarracino Martínez
ABSTRACT Binary sulfides were deposited by sequential thermal evaporation with the stacking order glass/CuS/SnS/ZnS and subsequently subjected to a sulfurization-crystallization process, considering two thermal treatment time intervals, 5 and 20 min. The objective of implementing different annealing durations was to identify the best conditions to form CZTS films in the pure kesterite phase. After
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Impact of two-step calcination on microstructure, phase, electronic, and dielectric properties of KCa2Nb3O10 bulk layered perovskite J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-02-23 Jeong-Yeon Kim, Jong-Chan Lim, Sang-il Kim, Seong-Mee Hwang, Weon-Ho Shin, Heesun Yang, Kyu Hyoung Lee, Hyun-Sik Kim
ABSTRACT The effects of varying calcination temperature, K content, and the number of calcination steps in the dielectric performance of KCa2Nb3O10 synthesized via solid-state reaction are investigated. Adding an extra calcination step at 500°C followed by another calcination at 1100°C suppressed the formation of secondary phases while maximizing the relative density (95%) and the average grain area
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Crystal structure and ion-exchange property of a lepidocrocite-like sodium titanate J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-02-14 Keito Makise, Takahiro Takei, Norio Saito, Junichi Yamanaka, Nobuhiro Kumada, Hiroyoshi Mori, Nobuki Itoi, Toshiki Goto
ABSTRACT A lepidocrocite-like potassium titanate, (Kx(LixTi1-x)O2; Lss) with a layered structure can provide a reactive interlayer space for soft-chemical reaction such as ion-exchange or intercalation and the hydrated sodium derivative (Lss-Na) was obtained by an ion-exchange reaction. The crystal structures of the hydrated and dehydrated Lss-Na were refined by using synchrotron powder X-ray diffraction
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Effect of sintering temperature on physical, mechanical, and electrical properties of nano silica particles synthesized from Indonesia local sand for piezoelectric application J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-02-14 Muhammad Sadat Hamzah, Muhammad Waziz Wildan, Kusmono, Edi Suharyadi
ABSTRACT This study aims to determine the effect of the sintering temperature of nanosilica on physical, mechanical, dielectric, and output voltage properties. The nanosilica particles used in this experiment were produced using the alkaline fusion method from natural sand. The green bodies were uniaxially formed with a pressure of 75 MPa and then were pressureless sintered at various temperatures
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Cordierite-based ceramics from stevensite clay and coal fly ash J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-02-14 Hanaa Hajjou, Kamal Tabit, Latifa Saâdi, Mohamed Waqif
ABSTRACT Cordierite-based ceramic is one of the most interesting engineering materials that has attractive and multidisciplinary assets, such as low thermal expansion coefficient, excellent thermal shock resistance, high refractoriness, good mechanical properties, and so on. In this work, cordierite-based ceramics were prepared mainly from stevensite-rich clay or coal fly ash (CFA) and stevensite-rich
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Vat photopolymerization-based 3D printing of complex-shaped and high-performance Al2O3 ceramic tool with chip-breaking grooves: Cutting performance and wear mechanism J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-27 Haidong Wu, Wei Liu, Yuerui Xu, Lifu Lin, Yehua Li, Shanghua Wu
ABSTRACT Due to the processing of alumina ceramic cutting tools with complex shapes using traditional methods is difficult and time-consuming, vat-photopolymerization-based 3D printing was adopted to fabricate Al2O3 ceramic cutting tools with grooves for the first time. Subsequently, cutting performance evaluation and wear mechanism analysis were conducted. The relative density, Vickers hardness, and
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Excellent permittivity-temperature stability and reliability performance of ultra-thin Ba0.97Ca0.03TiO3-based MLCCs J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-26 Xiong Huang, Lei Zhang, Pengfei Wang, Gang Jian, Jun Yang, Bo Li, Shuhui Yu, Rong Sun, Zhenxiao Fu, Xiuhua Cao
ABSTRACT High-temperature stability and reliability are in high demand for ultra-thin multilayer ceramic capacitors (MLCCs), which are ubiquitous in electronic industries. Here, two doping matrices of BaTiO3 (BT) and Ba0.97Ca0.03TiO3 (BCT) are chosen to prepare ultra-thin MLCCs, whose effects on the microstructure, nonlinear dielectric properties, temperature stability, and reliability of the capacitors
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Two-step simulation of piezoelectric properties of porous PZT according to porosity J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-10 Il-Gok Hong, Ho-Yong Shin, Jong-Ho Kim, Un-Gyu Paik, Jong-in Im
ABSTRACT Porous piezoelectric materials have been widely used in hydrophone applications owing to their excellent hydrostatic charge constant (dh) and voltage constant (gh). However, owing to the difficulty in sample manufacturing, the evaluation of the overall piezoelectric properties for reliable device design using simulations is challenging. Herein, a two-step simulation was performed to accurately
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Yttria-stabilized tetragonal zirconia prepared using gel casting and two-stage sintering J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-05 Jing-Siang Jhan, Chih-Cheng Chen, Yu-Chi Liu, Hsing-I Hsiang
ABSTRACT Gel casting technology and a two-stage sintering process were used to produce yttria-stabilized tetragonal zirconia (YTZP) ceramics with excellent mechanical properties. A carbonic acid-based polyelectrolyte dispersant was used as a dispersant to prepare a well-dispersed nano-sized (94 nm) zirconia slurry with a high solid content (45 vol%) for gel casting. The functional carboxyl groups of
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The grain growth mechanisms for 0.8(Bi,Na)TiO3-0.2(Sr,Ti)O3 ceramics prepared using a two-step sintering process J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-05 Lee Gwangseop, Jung-Hyuk Koh
ABSTRACT In this study, lead-free 0.8(Bi,Na)TiO3-0.2(Sr,Ti)O3 piezoelectric ceramics were prepared using a two-step sintering process to analyze their sintering mechanisms. Two-step sintering process has benefits of being able to be conducted at lower temperatures than conventional sintering process, but the complicated sintering mechanisms involved in this process have not been yet fully investigated
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Improvement of electrical and energy harvesting properties of new lead-free BST modified 0.995BNKT–0.005LN ceramics J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-04 Pimpilai Wannasut, Panupong Jaiban, Pharatree Jaita, Methee Promsawat, Orawan Khamman, Anucha Watcharapasorn
ABSTRACT New lead-free (1-y)[0.995Bi0.5(Na0.80K0.20)0.5TiO3-0.005LiNbO3]-y[(Ba0.7Sr0.3)TiO3] or (1-y)[0.995BNKT-0.005LN]-y[BST] (where y = 0, 0.01, 0.02, 0.03, 0.04 and 0.05 mol fraction) ceramics were fabricated by a conventional sintering method with two calcination steps. All ceramics sintered at 1125°C for 2 hours showed an optimum relative density of ~98% and a linear shrinkage of ~18%. X-ray
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Piezoelectric property optimization for piezoelectric single crystals using parametric estimation J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-04 Ho-Yong Shin, Ho-Yong Lee, Il-Gok Hong, Jong-Ho Kim, Jong-in Im
ABSTRACT The piezoelectric properties of a piezoelectric single crystal are typically determined using a resonance method. However, it is challenging to evaluate these properties in single crystals owing to their high sensitivity and property variations. In this study, to accurately determine the piezoelectric properties, initial values were obtained using two types of samples (TE and TS modes). Impedance
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The effect of groove and notch tip angles on testing fracture toughness by SEVNB method: models and experimental validation J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2023-01-02 Jinping Cui, Kang Guan, Pinggen Rao, Cheng Peng, Qingfeng Zeng, Jiantao Liu, Shuyan Yu
ABSTRACT The single-edged V-notch beam (SEVNB) method is considered as an effective method for evaluating the fracture toughness values of brittle materials. In this method, it is assumed that the V-notch is a natural crack. However, this assumption may cause an overestimation of the fracture toughness due to the “notch passivation effect”. To investigate the effects of the V-notch and groove tip angles
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The effect of SiC coatings microstructure on their infrared emissivity J. Asian Ceram. Soc. (IF 2.3) Pub Date : 2022-12-28 Jiabao Liu, Zhaofeng Chen, Lixia Yang, Pan Chai, Qiang Wan
ABSTRACT Infrared temperature measurement is widely used in the MOCVD process, and improving the surface infrared emissivity of the graphite base is beneficial to improve the temperature measurement accuracy. In this study, SiC coatings were prepared by CVD on graphite substrate using different process parameters including CVD temperature, total pressure, H2/MTS ratio. The infrared emissivity of SiC