Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12

	Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12
	Peng J(彭杰); Peng, J; Liu, XZ; Guo, FL; Han, SB; Liu, YT; Chen, DF; Zhao, XH; Hu, ZB
刊名	TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
	2009
卷号	19 期号:6 页码:1623-1627
关键词	negative thermal expansion X-ray diffraction rare earth molybdate tungstate
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 ; Zhao Xin-hua] Beijing Normal Univ, Coll Chem, Beijing 100875, Peoples R China
英文摘要	A series of solid solutions Er2W3-xMoxO12 (0.5 <= x <= 2.5) were successfully synthesized by the solid state method. Their crystal structures and negative thermal expansion properties were studied by high temperature X-ray powder diffraction and the Rietveld method. All samples with rare earth tungstates and molybdates 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 (TECs) of Er2W3-xMoxO12 were determined as -16.2 x 10(-6) K-1 for x=0.5 and - 16.5 x 10(-6) K-1 for x=2.5 while -20.2 x 10(-6) K-1 and -18.4 x 10(-6) K-1 for unsubstituted Er2W3O12 and Er2Mo3O12 in the identical temperature range of 200-800 degrees C. High temperature XRD data and bond length analysis suggest that the difference between W-O and Mo-O is responsible for the change of TECs after the element substitution in the series of solid solutions.
学科主题	Metallurgy & Metallurgical Engineering
类目[WOS]	Metallurgy & Metallurgical Engineering
研究领域[WOS]	Metallurgy & Metallurgical Engineering
原文出处	SCI
语种	英语
WOS记录号	WOS:000272501000043
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/239440]
专题	高能物理研究所_实验物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Peng J,Peng, J,Liu, XZ,et al. Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12[J]. TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,2009,19(6):1623-1627.
APA	彭杰.,Peng, J.,Liu, XZ.,Guo, FL.,Han, SB.,...&Hu, ZB.(2009).Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12.TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA,19(6),1623-1627.
MLA	彭杰,et al."Crystal structure and negative thermal expansion properties of solid solution Er2W3-xMoxO12".TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 19.6(2009):1623-1627.