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Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12
Peng J(彭杰); Peng, J; Liu, XZ; Guo, FL; Han, SB; Liu, YT; Chen, DF; Hu, ZB
2010
发表期刊INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS
卷号17期号:6页码:786-790
通讯作者[Peng, Jie] Chinese Acad Sci, Inst High Energy Phys, Expt Phys Ctr, Beijing 100049, Peoples R China ; [Peng, Jie ; Hu, Zhong-bo] Chinese Acad Sci, Grad Univ, Coll Chem & Chem Engn, Beijing 100049, Peoples R China ; [Liu, Xin-zhi ; Han, Song-bai ; Liu, Yun-tao ; Chen, Dong-feng] China Inst Atom Energy, Beijing 102413, Peoples R China ; [Guo, Fu-li] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China
文章类型Article
摘要A new series of solid solutions Lu(2)W(3-x)Mco(x)O(12) (0.5 <= x <= 2.5) were successfully synthesized by the solid-state method. Their crystal structure and negative thermal expansion properties were studied using high-temperature X-ray powder diffraction and the Rietveld method. All samples of rare-earth tungstates and molybdates are found to crystallize in the same orthorhombic structure with space group Pnca and show the negative thermal expansion phenomena related to transverse vibration of bridging oxygen atoms in the structure. Thermal expansion coefficients (TEC) of Lu2W3-xMoxO12 are determined as -20.0x10(-6) K-1 for x=0.5 and -16.1x10(-6) K-1 for x=2.5 but -18.6x10(-6) and -16.9x10(-6) K-1 for unsubstituted Lu2W3O12 and Lu2Mo3O12 in the identical temperature range of 200 to 800 C. High-temperature X-ray diffraction (XRD) data and bond length analysis suggest that the difference between W-O and Mo-O bond is responsible for the change of TECs after the element substitution in this series of solid solutions.
关键词rare earth compounds molybdates rare-earth tungstates negative thermal expansion X-ray diffraction
学科领域Materials Science; Metallurgy & Metallurgical Engineering; Mining & Mineral Processing
研究领域[WOS]Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing ; Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
DOI10.1007/s12613-010-0390-9
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语种英语
研究领域[WOS]Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing ; Materials Science ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS类目Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Mining & Mineral Processing
WOS记录号WOS:000285164200019
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被引频次:5[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/311005/238484
专题实验物理中心
作者单位中国科学院高能物理研究所
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GB/T 7714
Peng J,Peng, J,Liu, XZ,et al. Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12[J]. INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,2010,17(6):786-790.
APA 彭杰.,Peng, J.,Liu, XZ.,Guo, FL.,Han, SB.,...&Hu, ZB.(2010).Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12.INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS,17(6),786-790.
MLA 彭杰,et al."Crystal structure and negative thermal expansion of solid solution Y2W3-xMoxO12".INTERNATIONAL JOURNAL OF MINERALS METALLURGY AND MATERIALS 17.6(2010):786-790.
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