Preparation of Bi-Based High Curie Temperature PTCR Ceramic

摘要：

　　PTCR ceramic samples of two systems,Bi4Ti3-xNbxO12-x/2(BTNO,0≤x≤0.01) and Bi4Ti3O12 +(1-z)BaTi1-xNbxO3-x/2+2.0mol%TiO2 (BTO+(1-z)BTNO,0≤x≤0.01,0≤z≤1.0),were prepared by mixed oxide method.The properties of the sapmples were characterized by XRD,AFM and electrical properties testing.The results showed that single BaBi4Ti4O15 was obtained when x=0.05 and z=0.5.The roomtemperature resistivity of BTO+(1-z)BTNO ceramic sintered in air was 102-104Ω·cm.The minimum resistivity occurred at Nb content of about 0.3mol%.

关键词： PTCR ceramic Lead-free High Curie temperature

作者: Yunhe Liang Yongping Pu Hongyan Miao

作者单位: School of Materials Science and Engineering,Shaanxi University of Science and Technology,Xian,Shaanxi 710021,China

会议类型: 国际会议

会议名称: The Fifth China International Conference on High-Performance Ceramics (第五届先进陶瓷国际研讨会(CICC-5))

会议地点: 长沙

会议语种:英文

页码: 459-460

在线出版日期: 2007-05-10（万方平台首次上网日期，不代表论文的发表时间）