基本信息:
- 专利标题： 一种具有巨介电常数及电调特性的无铅铁电陶瓷材料及其制备方法
- 专利标题（英）：Lead-free ferroelectric ceramic material with giant dielectric constant and electric modulation features and preparation method thereof
- 申请号：CN201810668019.1 申请日：2018-06-26
- 公开(公告)号：CN108689703A 公开(公告)日：2018-10-23
- 发明人： 周昌荣 , 许积文 , 曾卫东 , 黎清宁 , 杨玲 , 袁昌来 , 陈国华 , 饶光辉
- 申请人： 桂林电子科技大学
- 申请人地址： 广西壮族自治区桂林市七星区金鸡路1号
- 专利权人： 桂林电子科技大学
- 当前专利权人： 桂林电子科技大学
- 当前专利权人地址： 广西壮族自治区桂林市七星区金鸡路1号
- 代理机构： 桂林市华杰专利商标事务所有限责任公司
- 代理人： 杨雪梅
- 主分类号： C04B35/468
- IPC分类号： C04B35/468 ; C04B35/622
The invention discloses a lead-free ferroelectric ceramic material with a giant dielectric constant and electric modulation features and a preparation method thereof. The ceramic material has the composition of (1-x)BaTi0.90Sn0.10O<3-x>Ca2LaMn2O7, wherein the x represents the mol percentage; the x is greater than 0.01 but smaller than 0.2; the BaTi0.90Sn0.10O3 and the Ca2LaMn2O7 are synthesized ina separated way by a solid phase synthesis reaction method; then, a special small-scale hybridization complicated structure is formed through mixing and one-step microwave sintering; the giant dielectric constant and dielectric constant outer field adjustable features are generated; the properties exceed all reported lead-free ferroelectric ceramics. Through experiment measurement on products, the giant dielectric constant and electric modulation features can be realized; the dielectric constant Epsilon r reaches 10<5>; the dielectric adjustable degree reaches 98 percent; the performance is stable; the cost is low; the lead-free ferroelectric ceramic material is suitable for large-scale industrial production.
公开/授权文献:
- CN108689703B 一种具有巨介电常数及电调特性的无铅铁电陶瓷材料及其制备方法 公开/授权日：2021-01-05