Thermal expansion in dysprosium tungstate Dy_(10)W_2O_(21)

作     者：XINGXianran, ZHU Zhenqi, QI Xue, and LIU GuirongDepartment of Physical Chemistry, University of Science and Technology Beijing, Beijing 100083, China 

作者机构：Department of Physical Chemistry University of Science and Technology Beijing 北京 100083 

出 版 物：《Rare Metals》 (稀有金属（英文版）)

年 卷 期：2002年第21卷第3期

页      面：182-185页

核心收录：

学科分类：081704[工学-应用化学] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学] 

基　　金：This work was financially supported by the National Natural Science Foundation of China (Nos. 29971004 and 20171006) the Funds of Ministry of Education of China for Training Doctors (No. 20010008005) the Assistant Plan to Key Young College's Teachers 

主　　题：Dy_(10)W_2O_(21) thermal expansion cell parameter thermodynamic stability 

摘      要：The complex oxide Dy_(10)W_2O_(21) was synthesized by a solid-state reactionand isolated in cubic symmetry by an X-ray diffractometry (XRD) method. Differential scanningcalorimetry (DSC) measurements show that the compound is thermodynamically stable. The intrinsicthermal expansion coefficients were determined by extra-power powder X-ray diffractometry from roomtemperature to 1000 deg C: linear coefficient alpha-bar = 1.07 X 10^(-5) deg C^(-1) and bulkcoefficient beta-bar = 3.20 X 10^(-5) deg C^(-1). Dilatometry was used to measure the extrinsicthermal expansion coefficient (9.2 X 10^(-6) deg C^(-1)).