High-Performance Lead-Free Piezoceramics with High Curie Temperatures

Myang Hwan Lee; Da Jeong Kim; Jin Su Park; Sang Wook Kim; Tae Kwon Song; Myong-Ho Kim; Won-Jeong Kim; Dalhyun Do; Il-Kyoung Jeong

doi:10.1002/adma.201502424

High-Performance Lead-Free Piezoceramics with High Curie Temperatures

Adv Mater. 2015 Nov 18;27(43):6976-82. doi: 10.1002/adma.201502424. Epub 2015 Oct 7.

Authors

Myang Hwan Lee¹, Da Jeong Kim¹, Jin Su Park¹, Sang Wook Kim², Tae Kwon Song¹, Myong-Ho Kim¹, Won-Jeong Kim², Dalhyun Do³, Il-Kyoung Jeong⁴

Affiliations

¹ School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongnam, 641-773, South Korea.
² Department of Physics, Changwon National University, Changwon, Gyeongnam, 641-773, South Korea.
³ Department of Advanced Materials Engineering, Keimyung University, Daegu, 704-701, South Korea.
⁴ Department of Physics Education, Pusan National University, Busan, 609-735, South Korea.

PMID: 26444562
DOI: 10.1002/adma.201502424

Abstract

A bismuth ferrite and barium titanate solid solution compound can achieve good piezoelectric properties with a high Curie temperature when fabricated with low-temperature sintering followed by a water-quenching process, with no complicated grain alignment processes performed. By adding the super-tetragonal bismuth gallium oxide to the compound, the piezoelectric properties are as good as those of lead zirconate titanate ceramics.

Keywords: curie temperature; lead-free; piezoelectric materials; pizeoceramics.