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Bismuth-based lead-free piezoelectric ceramics and actuator using the same
The present invention relates to a bismuth-based lead-free piezoelectric ceramics, an actuator having the same, and a method for manufacturing a bismuth-based lead-free piezoelectric ceramics, and more particularly, to a bismuth lead-free piezoelectric ceramics having excellent electric field induced strain (EFIS) in a low electric field, an actuator having the same, and a method for manufacturing a bismuth-based lead-free piezoelectric ceramics. According to an embodiment of the present invention, the bismuth lead-free piezoelectric ceramics may have a perovskite crystal structure by substituting Zr for a part of Ti of (Bi, Na)TiO_3 of (Bi, Na)TiO_3-SrTiO_3 based solid solution obtained by adding SrTiO_3 to (Bi, Na) TiO_3 based matrix.
본 발명은 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 비스무스계 무연 압전 세라믹스 제조방법에 관한 것으로, 더욱 상세하게는 저전계에서 전계유기 변형률(Electric Field Induced Strain; EFIS)이 우수한 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 비스무스계 무연 압전 세라믹스 제조방법에 관한 것이다. 본 발명의 일실시예에 따른 비스무스계 무연 압전 세라믹스는 (Bi,Na)TiO계 모체에 SrTiO가 첨가된 (Bi,Na)TiO―SrTiO계 고용체에 상기 (Bi,Na)TiO의 Ti 일부가 Zr로 치환되고, 페로브스카이트(Perovskite) 결정 구조를 가질 수 있다.
Bismuth-based lead-free piezoelectric ceramics and actuator using the same
The present invention relates to a bismuth-based lead-free piezoelectric ceramics, an actuator having the same, and a method for manufacturing a bismuth-based lead-free piezoelectric ceramics, and more particularly, to a bismuth lead-free piezoelectric ceramics having excellent electric field induced strain (EFIS) in a low electric field, an actuator having the same, and a method for manufacturing a bismuth-based lead-free piezoelectric ceramics. According to an embodiment of the present invention, the bismuth lead-free piezoelectric ceramics may have a perovskite crystal structure by substituting Zr for a part of Ti of (Bi, Na)TiO_3 of (Bi, Na)TiO_3-SrTiO_3 based solid solution obtained by adding SrTiO_3 to (Bi, Na) TiO_3 based matrix.
본 발명은 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 비스무스계 무연 압전 세라믹스 제조방법에 관한 것으로, 더욱 상세하게는 저전계에서 전계유기 변형률(Electric Field Induced Strain; EFIS)이 우수한 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 비스무스계 무연 압전 세라믹스 제조방법에 관한 것이다. 본 발명의 일실시예에 따른 비스무스계 무연 압전 세라믹스는 (Bi,Na)TiO계 모체에 SrTiO가 첨가된 (Bi,Na)TiO―SrTiO계 고용체에 상기 (Bi,Na)TiO의 Ti 일부가 Zr로 치환되고, 페로브스카이트(Perovskite) 결정 구조를 가질 수 있다.
Bismuth-based lead-free piezoelectric ceramics and actuator using the same
비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터
CHO JEONG HO (author) / JEONG YOUNG HUN (author) / YUN JI SUN (author) / PARK JUNG SOO (author) / KIM SEONG WON (author) / LEE JAE SHIN (author) / JEONG SOON JONG (author)
2017-04-26
Patent
Electronic Resource
Korean
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