Synthesis, phase transition and negative thermal expansion of cubic Zr(W1-yMoy)(2-x)VxO8-x/2 (y=0.10, 0.20, 0.30, 0.40; 0 <= x <= 0.40) solid solutions
Chen, X; Guo, FL; Deng, XB; Tao, JZ; Qiu, DL; Zhao, XH;陶举洲
刊名JOURNAL OF ALLOYS AND COMPOUNDS
2014
卷号612页码:252-258
关键词Negative thermal expansion Solid solutions Phase transition
学科分类Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
DOI10.1016/j.jallcom.2014.05.187
英文摘要We first prepared tetragonal Zr(W1-yMoy)(2-x)VxO7-x/2(OH)(2)center dot 2H(2)O (y = 0.10, 0.20, 0.30, 0.40; 0 <= x <= 0.40) hydrate precursors through acidic steam hydrothermal (ASH) treatment. Dehydration of these precursors produces the corresponding low temperature orthorhombic polymorph Zr(W1-yMoy)(2-x)VxO8-x/2. Upon annealing at 813-873 K for 2 h this intermediate further transforms to the end product of kinetically favored cubic Zr(W1-yMoy)(2-x)VxO8-x/2 solid solutions. The dehydration and orthorhombic to cubic phase transition temperatures decrease linearly with increasing Mo and constant V content; the orthorhombic to cubic phase transition temperature also decreases linearly with increasing V content at constant W/Mo ratio. Measurements of thermal stability and expansion indicate that cubic Zr(W1-yMoy)(2-x)VxO8-x/2 solid solutions have strong negative thermal expansion property. We characterized the average structure of c-Zr(W0.90Mo0.10)(1.76)V0.24O7.88 using Rietveld refinement method, calculated lattice parameters of solid solutions and solid solubility at different y value, and discuss structural factors that affect cell parameter values. (C) 2014 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000339692300041
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被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/225052
专题中国科学院高能物理研究所_实验物理中心_期刊论文
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Chen, X,Guo, FL,Deng, XB,et al. Synthesis, phase transition and negative thermal expansion of cubic Zr(W1-yMoy)(2-x)VxO8-x/2 (y=0.10, 0.20, 0.30, 0.40; 0 <= x <= 0.40) solid solutions[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2014,612:252-258.
APA Chen, X,Guo, FL,Deng, XB,Tao, JZ,Qiu, DL,&Zhao, XH;陶举洲.(2014).Synthesis, phase transition and negative thermal expansion of cubic Zr(W1-yMoy)(2-x)VxO8-x/2 (y=0.10, 0.20, 0.30, 0.40; 0 <= x <= 0.40) solid solutions.JOURNAL OF ALLOYS AND COMPOUNDS,612,252-258.
MLA Chen, X,et al."Synthesis, phase transition and negative thermal expansion of cubic Zr(W1-yMoy)(2-x)VxO8-x/2 (y=0.10, 0.20, 0.30, 0.40; 0 <= x <= 0.40) solid solutions".JOURNAL OF ALLOYS AND COMPOUNDS 612(2014):252-258.
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