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Electro-caloric effect in (Ba1-xCax)(Zr0.05Ti0.95)O3: A lead-free ferroelectric material
被引:94
|作者:
Singh, Gurvinderjit
[1
]
Tiwari, V. S.
[1
]
Gupta, P. K.
[1
]
机构:
[1] Raja Ramanna Ctr Adv Technol, Ceram Lab, Laser Mat Dev & Devices Div, Indore 452013, Madhya Pradesh, India
关键词:
SINGLE-CRYSTAL;
ROCHELLE SALT;
CERAMICS;
D O I:
10.1063/1.4829635
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
Electro-caloric effect in lead-free (Ba1-xCax)(Zr0.05Ti0.95)O-3 ferroelectric ceramics has been studied for x = 0.05, 0.08, and 0.10. The electro-caloric coefficient as high as 0.253 K mm/kV has been obtained near tetragonal-to-cubic phase transition for x = 0.08. This value is nearly the same as observed in lead-based ferroelectric materials. The higher value of electro-caloric coefficient at x = 0.08 is attributed to the higher polarization flexibility. (C) 2013 AIP Publishing LLC.
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