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Full-Text Articles in Physical Sciences and Mathematics
Anisotropic Thermal Expansion Of Monoclinic Potassium Lutetium Tungstate Single Crystals, Kunpeng Wang, Jianxiu Zhang, Jiyang Wang, Huaijin Zhang, Zhengping Wang, Wentao Yu, Xuping Wang, Qingming Lu, Mingfang Ba, Robert I. Boughton
Anisotropic Thermal Expansion Of Monoclinic Potassium Lutetium Tungstate Single Crystals, Kunpeng Wang, Jianxiu Zhang, Jiyang Wang, Huaijin Zhang, Zhengping Wang, Wentao Yu, Xuping Wang, Qingming Lu, Mingfang Ba, Robert I. Boughton
Physics and Astronomy Faculty Publications
The anisotropic thermal expansion of a single crystal of KLu WO4 2 KLuW , obtained by the top-seeded solution growth method, has been investigated over a wide temperature range 50– 600 °C . The linear thermal-expansion tensor has been determined and its principal X, Y, and Z axes are in the 705 , 010 , and 107 crystallographic directions, respectively. The principal thermal-expansion coefficients I, II, and III are 12.8 10−6, 7.8 10−6, and 22.2 10−6 K−1, respectively. The principal axis with maximum thermal expansion Z with III=22.2 10−6 is located at 10.37° from the c axis. In comparison with …
Thermal And Mechanical Properties Of Bawo4 Crystal, W. W. Ge, H. J. Wang, J. Y. Wang, J. H. Liu, X. G. Xu, X. B. Hu, M. H. Jiang, D. G. Ran, S. Q. Sun, H. R. Xia, Robert I. Boughton
Thermal And Mechanical Properties Of Bawo4 Crystal, W. W. Ge, H. J. Wang, J. Y. Wang, J. H. Liu, X. G. Xu, X. B. Hu, M. H. Jiang, D. G. Ran, S. Q. Sun, H. R. Xia, Robert I. Boughton
Physics and Astronomy Faculty Publications
A large single crystal of barium tungstate BaWO4 with dimensions of 22- mm diameter 80-mm length was grown by the Czochralski method using an iridium crucible. The melting point, molar enthalpy of fusion, and molar entropy of fusion of the crystal were determined to be 1775.10 K, 96 913.80 J mol−1, and 54.60 J K−1 mol−1, respectively. The average linear thermal-expansion coefficients are a=10.9526 10−6/K, b=10.8069 10−6 /K, and c =35.1063 10−6 /K in the temperature range from 303.15 to 1423.15 K along the three respective crystallographic axes. The density of the crystal follows an almost linear decrease from 6.393 …