NONSTOICHIOMETRY

作品数：17被引量：19H指数：2
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Defect chemistry and thermal conductivity of the εSmO_(1.5)·(1−ε)ZrO_(2)(0.2≤ε≤0.65)ceramics:Effect of the nonstoichiometry
《Journal of Advanced Ceramics》2024年第11期1823-1834,共12页Zhixue Qu Tong Zhang Wei Pan 
supported by the National Natural Science Foundation of China(No.52172062);the YEQISUN Joint Funds of the National Natural Science Foundation of China(No.U2241279).
Rare-earth zirconate pyrochlores,which exhibit various interesting properties,especially low thermal conductivity,are of great interest.Nonstoichiometry is an effective strategy involving defect engineering to reduce ...
关键词：NONSTOICHIOMETRY PYROCHLORE rare-earth zirconate thermal conductivity defect chemistry 
Corrosion resistance of non-stoichiometric gadolinium zirconate fabricated by laser-enhanced chemical vapor deposition被引量：4
《Journal of Advanced Ceramics》2021年第3期520-528,共9页Chengguan ZHANG Yun FAN Juanli ZHAO Guang YANG Hongfei CHEN Liangmiao ZHANG Yanfeng GAO Bin LIU 
This work was supported by the Natural Science Foundation of Shanghai(No.20ZR1419200);National Natural Science Foundation of China(Nos.52072232 and 52072231);the Program for Professor of Special Appointment(Eastern Scholar)by Shanghai Municipal Education Commission(No.TP2015040).
Gadolinium zirconate (GZ) is a promising candidate for next-generation thermal barrier coating (TBC) materials.Its corrosion resistance against calcium-magnesium-alumino-silicate(CMAS) needs to be further increased fo...
关键词：thermal barrier coating(TBC) gadolinium zirconate(GZ) NONSTOICHIOMETRY corrosion resistance 
Reduced Annealing Time and Enhanced Magnetocaloric Effect of La(Fe,Al)13 Alloy by La-nonstoichiometry and Si-doping
《Acta Metallurgica Sinica(English Letters)》2020年第11期1535-1542,共8页Liang Yang Jun Li Defang Tu Joel C.J.Strickland Qiaodan Hu Hongbiao Dong Jianguo Li 
financially supported by the National Key R&D Program of China (Nos. 2016YFB0701204 and 2017YFB0305300);the National Natural Science Foundation of China (Nos. 51774201 and 51727802);the National Natural Science Foundation of China-Excellent Young Scholars (No. 51922068)。
LaFe13-x Mx(M=Si,Al)alloys are promising for use in magnetic refrigeration.However,they require long annealing time(30 days)in order to optimize the magnetocaloric properties.Research has shown that the addition of ex...
关键词：Solidifi cation Magnetic properties Heat treatment Microstructure Functional alloys 
Effect of Sb-site nonstoichiometry on the structure and microwave dielectric properties of Li_(3)Mg_(2)Sb_(1-x)O_(6) ceramics被引量：7
《Journal of Advanced Ceramics》2020年第5期588-594,共7页Cuijin PEI Jingjing TAN Yang LI Guoguang YAO Yanmin JIA Zhaoyu REN Peng LIU Huaiwu ZHANG 
support from the National Natural Science Foundation of China (Grant No.51402235);China Postdoctoral Science Foundation (2015M582696);Science and Technology Plan Project of Xi’an Bureau of Science and Technology (GXYD17.19);Education Department of Shaanxi Province (18JK0711);Innovation Funds of Graduate Programs of Xi’an University of Posts and Telecommunications (CXJJLD2019020)
The non-stoichiometric Li_(3)Mg_(2)Sb_(1-x)O_(6)(0.05≤x≤0.125)compounds have been prepared via the mixed oxide method.The influences of Sb nonstoichiometry on the sintering behavior,microstructure,phase composition ...
关键词：microwave dielectric properties CERAMICS SINTERING antimony compounds 
Composition dependent intrinsic defect structures in ASnO3(A=Ca,Sr,Ba)
《Journal of Materials Science & Technology》2020年第7期212-219,共8页Yuchen Liu Yu Zhou Dechang Jia Juanli Zhao Banghui Wang Yuanyuan Cui Qian Li Bin Liu 
This work was supported financially by the National Natural Science Foundation of China(Nos.51602188 and 51972206);the Program for Professor of Special Appointment(Eastern Scholar)by Shanghai Municipal Education Commission(No.TP2015040);the Science and Technology Committee of Shanghai(No.19010500400).
Perovskite stannates are promising semiconductors that are widely used in optoelectronic devices.Here,the composition dependent intrinsic point defects of stannate perovskites ASnO3(A=Ca,Sr,Ba)are studied by first-pri...
关键词：DEFECT PEROVSKITE NONSTOICHIOMETRY Density functional theory 
omposition-sensitive electrical properties of charge nonstoichiometric 0.94Bi_(0.5+x)Na_(0.5-x)TiO_(3)–0.06BaTiO_(3)ceramics被引量：1
《Journal of Advanced Dielectrics》2019年第5期28-34,共7页Ji Zhang Rui-Xue Wang Ling Li Lei Sun Zheng-Bin Gu Haibo Zhang Shan-Tao Zhang 
supported by the State Key Program for Basic Research of China(2015CB921203);the National Nature Science Foundation of China(11674156,51721001,11804150);the“Deng Feng B”of Nanjing University.
Charge nonstoichiometric 0.94Bi_(0.5+x)Na_(0.5-x)TiO_(3)-0.06BaTiO_(3)(BNT-BT)(x=-0.02,-0.01,0,0.01,0.02)ceramics were pre-pared and investigated.The depolarization temperature was dependent on composition and the fer...
关键词：NONSTOICHIOMETRY BNT-BT composition-sensitive electrical properties 
Influence of Bi nonstoichiometry on the energy storage properties of 0.93KNN–0.07BixMN relaxor ferroelectrics
《Journal of Advanced Dielectrics》2018年第6期61-69,共9页Xiaoshuang Qiao Xiaoshuai Zhang Di Wu Xiaolian Chao Zupei Yang 
supported by National Science Foundation of China(Grant Nos.51572163,51577111 and 51607108);the Fundamental Research Funds for the Central Universities(Program Nos.GK201601003,GK201703016,GK201802007,201701011 and 2018CBLZ007).
Ceramic-based dielectric capacitors are becoming more and more important in electronic devices.The ceramics of 0.93K_(0.5)Na_(0.5)NbO_(3)–0.07Bix(Mg_(1/3)Nb_(2/3))O_(3)(0.93KNN–0.07BixMN)(x?0:60,2/3,0.75 and 0.95)we...
关键词：Oxygen vacancy NONSTOICHIOMETRY energy storage 
Effects of A-site nonstoichiometry on oxide ion conduction in 0.94Bi_(0.5)Na_(0.5)TiO_(3)-0.06BaTiO_(3) ceramics被引量：2
《Journal of Advanced Dielectrics》2016年第2期70-78,共9页Sasiporn Prasertpalichat Whitney Schmidt David P.Cann 
Lead free 0.94(Bi_(0.5)Na_(0.5))TiO_(3)-0.06BaTiO_(3)ceramics were prepared by conventional solid-state mixed oxide route with the A-site stoichiometry modified to incorporate donor-doping(through Bi-excess)and accept...
关键词：A-site nonstoichiometry oxide ion conduction lead free BNT-BT CERAMICS impedance spectroscopy ceramics. 
Enhancement of Thermoelectric Performance of Sr0.9Ba0.1Ti0.8Nb0.2O3 Ceramics by A-Site Cation Nonstoichiometry
《Chinese Physics Letters》2015年第3期113-116,共4页张鑫 刘剑 李宜 苏文斌 李吉超 祝元虎 李茂奎 王春明 王春雷 
Supported by the National Basic Research Program of China under Grant No 2013CB632506;the National Natural Science Foundation of China under Grant Nos 51202132,51002087 and 11374186;the Independent Innovation Foundation of Shandong University under Grant No IIFSDU 2012TS028
Sr0.9Ba0.1Ti0.8Nb0.2O3 ceramics （x=0, 0.01, 0.02 and 0.05） are prepared by solid state reaction, whose thermoelectric properties are investigated from 323K to 1073K. By introducing A-site nonstoichiometry, the absol...
关键词：Ba Nb O3 Ceramics by A-Site Cation Nonstoichiometry Ti 
Ionic conduction in Ba_xCe_(0.8)Pr_(0.2)O_(3–α)
《Journal of Rare Earths》2009年第5期819-824,共6页王茂元 仇立干 孙玉凤 
Project supported by the National Natural Science Foundation of China (20771079);Qing Lan Project and the Natural Science Foundation of Education Department of Jiangsu Province (07KJB150126 and 08KJD150008)
BaxCe0.8Pr0.2O3-α (x=0.98-1.03) ceramics were prepared by high temperature solid-state reaction. X-ray diffraction (XRD) patterns showed that the materials were perovskite-type orthorhombic single phase. By using gas...
关键词：BaxCe0.8Pr0.2O3-α ionic conduction gas concentration cell AC impedance NONSTOICHIOMETRY rare earths 
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