公开(公告)号：KR101333792B1

公开(公告)日：2013-11-29

申请号：KR1020120060313

申请日：2012-06-05

Applicant: 한국세라믹기술원

Inventor： 조정호 ,  김병익 ,  백종후 ,  전명표 ,  남중희 ,  이영진 ,  정영훈 ,  권소정 ,  염나리

IPC: C04B35/462 ,  C04B35/10 ,  H01L41/187 ,  C04B35/645

CPC classification number: C04B35/462 ,  C04B35/10 ,  C04B35/645 ,  C04B2235/3234 ,  H01L41/1878 ,  H01L41/43

Abstract: The present invention relates to lead-free piezoelectric ceramics and manufacturing method thereof, and more particularly, to lead-free piezoelectric ceramics which is composded of [Bi0.5(Na1-xKx)0.5TiO3]-BiAlO3 and has a perovskite structure. Unlike lead-based PZT which is harmful to the human body and induces environmental contamination, Bismuth-based piezoelectric ceramics is environment-friendly and shows low coercive field and high electric field strain, thereby improving piezoelectricity. [Reference numerals] (AA) Start;(BB) End;(S100) Weigh/Mix Bi_2O_3,Na_2CO_3,K_2CO_3, TiO_2 & Bi_2O_3, AI_2O_3;(S200) Form an intermediate composition;(S300) Form a molded body;(S400) Form a sintered body;(S500) Form a piezoelectric element (electrode formation / polarization processing)

Abstract translation: 本发明涉及无铅压电陶瓷及其制造方法，更具体地说，涉及由[Bi0.5（Na1-xKx）0.5TiO3] -BiAlO3组成且具有钙钛矿结构的无铅压电陶瓷。 与铅对人体有害并导致环境污染的铅基PZT不同，铋基压电陶瓷环保，表现出低矫顽力和高电场应变，从而提高压电性能。 （AA）开始;（BB）结束;（S100）称重/混合Bi_2O_3，Na_2CO_3，K_2CO_3，TiO_2和Bi_2O_3，Al_2O_3;（S200）形成中间体组合物;（S300）形成成型体;（S400 ）形成烧结体;（S500）形成压电元件（电极形成/极化处理）

公开(公告)号：KR101333793B1

公开(公告)日：2013-11-29

申请号：KR1020120060496

申请日：2012-06-05

Applicant: 한국세라믹기술원

Inventor： 조정호 ,  김병익 ,  백종후 ,  전명표 ,  남중희 ,  이영진 ,  정영훈 ,  권소정 ,  염나리

IPC: C04B35/462 ,  C04B35/10 ,  H01L41/187 ,  C04B35/645

CPC classification number: C04B35/462 ,  C04B35/10 ,  C04B35/645 ,  C04B2235/3234 ,  H01L41/1878 ,  H01L41/25

Abstract: The present invention relates to a bismuth-based piezoelectric ceramic and a method for fabricating the same and, more specifically, to the (1-x)[Bi0.5(Na,K)0.5TiO3]-xBiAlO3 bismuth(Bi)-based piezoelectric ceramic having a perovskite structure. The present invention provides a lead-free piezoelectric ceramic which is environmentally-friendly, not as a traditional lead-based PZT which is harmful in human body and prompted environmental contamination and has excellent piezo-electric properties by showing low coercive electric field and high electric field strain near phase boundary. [Reference numerals] (AA) Start;(BB) End;(S100) Weight and mix Bi_2O_3,Na_2CO_3,K_2CO_3,TiO_2&Bi_2O_3,AI_2O_3;(S200) Form intermediate compounds;(S300) Form molds;(S400) Form pellets;(S500) (Electrode formation / polarization treatment) form a piezoelectric element

Abstract translation: 本发明涉及一种铋基压电陶瓷及其制造方法，更具体地说，涉及（1-x）[Bi0.5（Na，K）0.5TiO3] -xBiAlO3铋（Bi）基 具有钙钛矿结构的压电陶瓷。 本发明提供一种无环境的无铅压电陶瓷，而不是作为传统的铅基PZT，其在人体内是有害的并且促使环境污染并且通过显示低矫顽电场和高电压而具有优异的压电特性 相界附近的场应变。 （AA）开始;（BB）结束;（S100）重量并混合Bi_2O_3，Na_2CO_3，K_2CO_3，TiO_2和Bi_2O_3，Al_2O_3;（S200）形式的中间体化合物;（S300）模具;（S400） S500）（电极形成/极化处理）形成压电元件