Synthesis, structure and negative thermal expansion of cubic ZrW2-xVxO8-x/2 solid solutions
Chen, X; Guo, FL; Deng, XB; Tao, JZ; Ma, H; Zhao, XH;陶举洲
刊名JOURNAL OF ALLOYS AND COMPOUNDS
2012
卷号537页码:227-231
关键词Synthesis ZrW2-xVxO8-x/2 solid solution Negative thermal expansion Structure
学科分类Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
DOI10.1016/j.jallcom.2012.04.106
英文摘要A novel cubic ZrW2-xVxO8-x/2 solid solution series was found to possess similar negative thermal expansion property like the extensively studied ZrW2O8. A tetragonal hydrate ZrW2-xVxO7-x/2 (OH)(2)(H2O)(2) up to x = 0.30 was first prepared through acidic steam hydrothermal synthesis, this precursor dehydrates at moderate temperature and converts to an intermediate orthorhombic phase then transforms to corresponding solid solutions at higher temperature. At room temperature cubic ZrW2-xVxO8-x/2 (x = 0-0.24) has alpha-ZrW2O8 type and ZrW1.70V0.30O7.85 has beta-ZrW2O8 type disordering. X-ray diffraction, neutron diffraction and Raman spectroscopy studies support an average crystal structure model of ZrW2-xVxO8-x/2 as a superposition of respective cubic ZrW2O8 and ZrV2O7 structures. The lattice parameters of cubic ZrW2-xVxO8-x/2 solid solutions, the value of orientation order parameter omega and order-disorder phase transition temperature of the solid solutions all decrease with increasing substitution content x. The maximum solid solubility of cubic ZrW2-xVxO8-x/2 solid solution reaches 16% according to the Vegard's law. (C) 2012 Elsevier B.V. All rights reserved.
收录类别SCI
WOS记录号WOS:000306693100038
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被引频次:3[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/311005/223899
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, structure and negative thermal expansion of cubic ZrW2-xVxO8-x/2 solid solutions[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2012,537:227-231.
APA Chen, X,Guo, FL,Deng, XB,Tao, JZ,Ma, H,&Zhao, XH;陶举洲.(2012).Synthesis, structure and negative thermal expansion of cubic ZrW2-xVxO8-x/2 solid solutions.JOURNAL OF ALLOYS AND COMPOUNDS,537,227-231.
MLA Chen, X,et al."Synthesis, structure and negative thermal expansion of cubic ZrW2-xVxO8-x/2 solid solutions".JOURNAL OF ALLOYS AND COMPOUNDS 537(2012):227-231.
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