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Your search keyword '"Luo, Laihui"' showing total 19 results
Start Over Author "Luo, Laihui" Journal ceramics international
19 results on '"Luo, Laihui"'

19. Electrocaloric effect based on the depolarization transition in (1−x)Bi0.5Na0.5TiO3–xKNbO3 lead-free ceramics.

Author

Jiang, Xijie, Luo, Laihui, Wang, Baoyin, Li, Weiping, and Chen, Hongbing

Subjects
*PYROELECTRICITY, *POLARIZATION (Electricity), *PHASE transitions, *BISMUTH compounds, *LEAD-free ceramics, *FERROELECTRIC ceramics, *SOLID state chemistry
Abstract

Lead-free ferroelectric ceramics (1−x)Bi0.5Na0.5TiO3−xKNbO3 (BNT–xKN) with x=0.00, 0.04, 0.06 and 0.08 were synthesized by the conventional solid state reaction method. The effects of the KNbO3 addition on the dielectric behavior, ferroelectric properties, as well as electrocaloric effect of the ferroelectric ceramic BNT–xKN were investigated. The results show that the depolarization temperature decreases with the increment of KN content. A high ECE of 1.73°C is achieved at 76°C in BNT–0.06KN. The relation between electrocaloric effect and depolarization transition was discussed. This investigation indicates that the depolarization transition below Curie transition in BNT-based ceramics is a promising approach in ECE technique. [ABSTRACT FROM AUTHOR]

Published
2014
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