A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Composite bismuth-based lead-free piezoelectric ceramics and actuator using the same
The present invention relates to composite bismuth-based lead-free piezoelectric ceramics, an actuator including the same, and a method for manufacturing the composite bismuth-based lead-free piezoelectric ceramics, and more specifically, to composite bismuth-based lead-free piezoelectric ceramics which has excellent electric field induced strain (EFIS) in a low electric field, an actuator including the same, and a method for manufacturing the composite bismuth-based lead-free piezoelectric ceramics. According to one embodiment of the present invention, the composite bismuth-based lead-free piezoelectric ceramics are a (Bi, Na)TiO_3-SrTiO_3-based solid solution where SrTiO_3 is added to a (Bi, Na)TiO_3-based matrix while a part of (Bi, Na)TiO_3 in the (Bi, Na)TiO_3-SrTiO_3-based solid solution is substituted with KNbO_3 having a pseudo-cubic structure, and have a perovskite crystal structure.
본 발명은 복합 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 복합 비스무스계 무연 압전 세라믹스 제조방법에 관한 것으로, 더욱 상세하게는 저전계에서 전계유기 변형률(Electric Field Induced Strain; EFIS)이 우수한 복합 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 복합 비스무스계 무연 압전 세라믹스 제조방법에 관한 것이다. 본 발명의 일실시예에 따른 복합 비스무스계 무연 압전 세라믹스는 (Bi,Na)TiO계 모체에 SrTiO가 첨가된 (Bi,Na)TiO―SrTiO계 고용체에 상기 (Bi,Na)TiO의 일부가 의사입방정(pseudo-cubic) 구조를 갖는 KNbO로 치환되고, 페로브스카이트(Perovskite) 결정 구조를 가질 수 있다.
Composite bismuth-based lead-free piezoelectric ceramics and actuator using the same
The present invention relates to composite bismuth-based lead-free piezoelectric ceramics, an actuator including the same, and a method for manufacturing the composite bismuth-based lead-free piezoelectric ceramics, and more specifically, to composite bismuth-based lead-free piezoelectric ceramics which has excellent electric field induced strain (EFIS) in a low electric field, an actuator including the same, and a method for manufacturing the composite bismuth-based lead-free piezoelectric ceramics. According to one embodiment of the present invention, the composite bismuth-based lead-free piezoelectric ceramics are a (Bi, Na)TiO_3-SrTiO_3-based solid solution where SrTiO_3 is added to a (Bi, Na)TiO_3-based matrix while a part of (Bi, Na)TiO_3 in the (Bi, Na)TiO_3-SrTiO_3-based solid solution is substituted with KNbO_3 having a pseudo-cubic structure, and have a perovskite crystal structure.
본 발명은 복합 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 복합 비스무스계 무연 압전 세라믹스 제조방법에 관한 것으로, 더욱 상세하게는 저전계에서 전계유기 변형률(Electric Field Induced Strain; EFIS)이 우수한 복합 비스무스계 무연 압전 세라믹스 및 이를 포함하는 액추에이터, 복합 비스무스계 무연 압전 세라믹스 제조방법에 관한 것이다. 본 발명의 일실시예에 따른 복합 비스무스계 무연 압전 세라믹스는 (Bi,Na)TiO계 모체에 SrTiO가 첨가된 (Bi,Na)TiO―SrTiO계 고용체에 상기 (Bi,Na)TiO의 일부가 의사입방정(pseudo-cubic) 구조를 갖는 KNbO로 치환되고, 페로브스카이트(Perovskite) 결정 구조를 가질 수 있다.
Composite bismuth-based lead-free piezoelectric ceramics and actuator using the same
복합 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)
2016-12-09
Patent
Electronic Resource
Korean
Bismuth-based lead-free piezoelectric ceramics and actuator using the same
| European Patent Office | 2017
Bismuth-based lead-free piezoelectric ceramics and actuator using the same
European Patent Office | 2017
Composite Bismuth-based lead-free piezoelectric ceramics and process for preparing the same
| European Patent Office | 2017
composite Bismuth-based lead-free piezoelectric ceramics and process for preparing the same
| European Patent Office | 2017