The 78th JSAP Autumn Meeting, 2017

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9 Applied Materials Science » 9.1 Dielectrics, ferroelectrics

[6a-A502-1~14] 9.1 Dielectrics, ferroelectrics

Wed. Sep 6, 2017 9:00 AM - 12:45 PM A502 (502)

Hajime Nagata(Tokyo Univ. of Sci.), Satoshi Wada(Univ. of Yamanashi), Ueno Shintaro(Yamanashi University)

12:30 PM - 12:45 PM

[6a-A502-14] Electrocaloric Effects of (Ba,Sr)TiO3 Ceramics

〇Hiroshi Maiwa1 (1.Shonan Inst. Tech.)

Keywords:ferroelectrics, electrocaloric effect

The measured temperature changes deltaT of the (Ba,Sr),TiO3 (BST) ceramics sintered at 1600°C upon the release of the electric field from 30 kV/cm to zero was 0.57K at 30°C. The temperature dependences of the electromechanical and electrocaloric properties were investigated. BST is more temperature dependent compared with Ba(Zr,Ti)O3 (BZT). BST ceramics sintered at 1600°C exhibited the largest the electromechanical and electrocaloric properties at around 30°C.