Caloric characteristics of PbTiO3 in the temperature range of the ferroelectric phase transition

被引:55
作者
Mikhaleva, E. A. [1 ,2 ]
Flerov, I. N. [1 ,2 ]
Gorev, M. V. [1 ,2 ]
Molokeev, M. S. [2 ]
Cherepakhin, A. V. [2 ]
Kartashev, A. V. [2 ]
Mikhashenok, N. V. [2 ]
Sablina, K. A. [2 ]
机构
[1] Siberian Fed Univ, Inst Engn Phys & Radio Elect, Krasnoyarsk 660074, Russia
[2] Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
基金
俄罗斯基础研究基金会;
关键词
SINGLE-CRYSTALS; LEAD TITANATE; DIELECTRIC PROPERTIES; SOLID-SOLUTIONS; PRESSURE; PEROVSKITES; DEPENDENCE; BEHAVIOR; HEAT;
D O I
10.1134/S1063783412090181
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The heat capacity and thermal expansion of the PbTiO3 ceramic sample have been measured in the temperature range 80-970 K. The electrocaloric and barocaloric efficiencies of lead titanate in the ferroelectric phase transition range have been investigated by analyzing the experimental data in terms of the thermodynamic theory of phase transitions, the electrical equation of state P(T, E), the Pippard equation, and the S(T, p) diagram.
引用
收藏
页码:1832 / 1840
页数:9
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