基本信息:
- 专利标题： 센서 및 액추에이터용 비납계 압전 세라믹
- 专利标题（英）：Composition of lead-free piezoelectric ceramics for sensor and actuator
- 专利标题（中）：用于传感器和执行器的无铅压电陶瓷的组成
- 申请号：KR1020110131310 申请日：2011-12-08
- 公开(公告)号：KR101349335B1 公开(公告)日：2014-01-16
- 发明人： 정순종 , 김민수 , 김인성 , 송재성 , 이대수
- 申请人： 한국전기연구원
- 申请人地址： 경상남도 창원시 성산구 불모산로**번길 ** (성주동)
- 专利权人： 한국전기연구원
- 当前专利权人： 한국전기연구원
- 当前专利权人地址： 경상남도 창원시 성산구 불모산로**번길 ** (성주동)
- 代理人： 특허법인부경
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; C04B35/01 ; H01L41/187
The present invention relates to a non-lead piezoelectric ceramic, the piezoelectric ceramic sensor and in the non-lead composition for an actuator, it has a size of 5 to 100㎛ has a ferroelectric substance phase of 0.1 to 5㎛ size around the circumference composed of a single crystal having a polycrystalline structure by paraelectric provide a piezoelectric ceramic in the form surrounding the entire phase material, of the ferroelectric phase material of the phase change and the central portion of the paraelectric total phase material of the portion surrounding the peripheral when the electric field applied to the piezoelectric ceramic to the ferroelectric phase on the whole paraelectric and a non-lead piezoelectric ceramic composition for sensors and actuators, characterized in that said strain is a domain indicating a rearrangement occurs to a technical base. Thus the final piezoelectric molding the while having the at least two more, the electric field is applied during phase change and the domain rearrangement occurs and an increase in the dielectric constant due to the strain and piezoelectric constant (d33) is excellent, shock sensor, acceleration sensor , an ultrasonic sensor, can be prepared a high-reliability piezoelectric component such as a laminated piezoelectric actuator, the piezoelectric transformer and the ultrasonic transducer, ignition element, there is an advantage capable of reducing the environmental contamination by lead.
公开/授权文献:
- KR1020130064611A 센서 및 액추에이터용 비납계 압전 세라믹 公开/授权日：2013-06-18