Mechanical and thermal properties of Tb2(MoO4)3 crystals

被引：8
|
作者：
Xu, Min [1 ,2 ]
Gao, Wenlan [1 ,2 ]
Zhang, Huaijin [1 ,2 ]
Cheng, Xiufeng [1 ,2 ]
Xu, Xinguang [1 ,2 ]
Wang, Jiyang [1 ,2 ]
Boughton, Robert I. [3 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Univ, Inst Crystal Mat, Jinan 250100, Peoples R China
[3] Bowling Green State Univ, Dept Phys & Astron, Bowling Green, OH 43403 USA
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2011年 / 509卷 / 33期
基金：
中国国家自然科学基金;
关键词：
Terbium molybdate crystals; Anisotropy; Mechanical and thermal analysis; RARE-EARTH MOLYBDATES; FERROELECTRIC PHASE-TRANSFORMATION; GADOLINIUM MOLYBDATE; GROWTH; TB2(MOO4)3; LINBO3; GENERATION; DEPENDENCE; SCATTERING;
D O I：
10.1016/j.jallcom.2011.06.001
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The mechanical and thermal properties of single crystal Tb-2(MoO4)(3) have been systematically studied. The result of microhardness measurement indicates that the crystal belongs to the soft materials category. The thermodynamic parameters obtained from DTA analysis were used for determining the type of liquid-solid interface during crystal growth. Negative thermal expansion along the c-axis was observed, and this behavior was attributed to the bent Tb-O-Mo bonds. The specific heat of the crystal was measured to be 0.122 cal g(-1) K-1 at 293.15 K. The thermal conductivity of Tb-2(MoO4)(3) at room temperature was found to be smaller than that of representative ferroelectric LiNbO3. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：8455 / 8459
页数：5
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