Development of grain oriented multilayer ceramic actuator using bismuth based lead-free perovskites

使用铋基无铅钙钛矿开发晶粒取向多层陶瓷致动器

• 批准号: 23760643
• 负责人: NAGATA Hajime
• 金额: $ 2.75万
• 依托单位: Tokyo University of Science
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011 至 2013
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23760643/
• 关键词: 非鉛圧電セラミックス; チタン酸ビスマスカリウム; 積層セラミックアクチュエータ; 粒子配向セラミックス; 圧電特性; 非鉛強誘電体セラミックス; ペロブスカイト化合物; 粒子配向技術

Lead-based piezoelectric ceramics of Pb(Zr,Ti)O3 (PZT) are widely used in piezoelectric devices such as ultrasonic generators, sensors, resonators, and actuators. Recently, there has been a strong demand to develop environmentally friendly, that is, lead-free ferroelectric and piezoelectric ceramics. (Bi1/2K1/2)TiO3 [BKT] is one of bismuth based perovskite materials and showing high Curie temperature at approximately 400 oC and relatively large piezoelectric strain constant d33 about 100 pC/N. Therefore, BKT ceramics have been paid attention as one of candidates for lead-free piezoelectric actuator materials. In this study, we demonstrated multilayer piezoelectric actuators by using lead-free BKT ceramics and showing good electrical properties as compared with bulk BKT ceramics.

铅基压电陶瓷PZT被广泛应用于超声波发生器、传感器、谐振器和执行器等压电器件中。近年来，人们对开发环境友好型即无铅铁电和压电陶瓷的需求一直很强烈。(BI1/2K1/2)TiO_3[BKT]是一种铋系钙钛矿材料，居里温度约为400℃，压电常数D_(33)约为100 pC/N，因此，BKT陶瓷作为无铅压电致动器的候选材料备受关注。在本研究中，我们展示了使用无铅BKT陶瓷的多层压电致动器，并与块体BKT陶瓷相比显示出良好的电学性能。

项目成果

Excess Potassium Effects for Fabricating Dense KNbO_3 and (Bi_<1/2>K_<1/2>)TiO_3 Ceramics

过量钾对致密KNbO_3和(Bi_<1/2>K_<1/2>)TiO_3陶瓷制造的影响

• 发表时间: 2012
• 作者: Hajime Nagata;Kazuya Tabuchi;Nobutaka Yawata;Tadashi Takenaka
• 通讯作者: Tadashi Takenaka

Fabrication of Dense KNbO_3 Ceramics Derived from KHCO_3 as a Starting Material

以KHCO_3为原料制备致密KNbO_3陶瓷

• 发表时间: 2011
• 期刊: Applied Physics Express
• 影响因子: 2.3
• 作者: Hajime Nagata;Shigeki Sato;Yuji Hiruma;and Tadashi Takenaka
• 通讯作者: and Tadashi Takenaka

(Bi1/2K1/2)TiO3セラミックスの焼結性及び電気的諸特性に及ぼす添加物効果

添加剂对(Bi1/2K1/2)TiO3陶瓷烧结性能和电性能的影响

• 发表时间: 2014
• 作者: S. Yoshikawa;H. Hirazawa;H. Aono;T. Naohara;T. Maehara;and Y. Watanabe;田井中拓也;染谷 拓巳・田渕 量也・永田 肇・竹中 正
• 通讯作者: 染谷 拓巳・田渕 量也・永田 肇・竹中 正

Kazuya Tabuchi, Hajime Nagata and Tadashi Takenaka

田渊一也、永田肇、竹中正

• 发表时间: 2012
• 作者: 桂ゆかり;高木英典;Fabrication and Electrical Properties of dense (Bi1/2K1/2)TiO3 Ceramics Synthesized from KHCO3 as a Starting Material
• 通讯作者: Fabrication and Electrical Properties of dense (Bi1/2K1/2)TiO3 Ceramics Synthesized from KHCO3 as a Starting Material

Effects of Starting Raw Materials for Fabricating Dense (Bi_<1/2>K_<1/2>)TiO_3 Ceramics

起始原料对致密(Bi_<1/2>K_<1/2>)TiO_3陶瓷制造的影响

• 发表时间: 2013
• 期刊: Ferroelectrics
• 影响因子: 0.8
• 作者: Kazuya Tabuchi;Yuta Inoue;Hajime Nagata and Tadashi Takenaka
• 通讯作者: Hajime Nagata and Tadashi Takenaka