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)

11:15 AM - 11:30 AM

[6a-A502-9] Crystal Structure Analysis of Quenched (Bi1/2Na1/2)TiO3 -based Ceramics

〇Hajime Nagata1, Tatsuki Miura1, Tadashi Takenaka1 (1.Tokyo Univ. of Sci.)

Keywords:lead-free piezoelectric ceramics, Bismuth Sodium Titanate, depolarization temperature

It is generally known that (Bi1/2Na1/2)TiO3 (BNT) ceramic is one of the candidates materials for lead-free piezoelectric ceramics. Recently, we found that a depolarization temperature Td can be increased by a quenching treatment. In this study, we conducted crystal structure analysis for the quenched BNT ceramic and revealed that rhombohedral distortion was increased by the quenching treatment.