Pyroelectric properties of SBN/BST by powder-sol method

摘要：

　　0.7BaO.0.3SrO·0.3Nb2O5·0.7TiO2 (SBN/BST) composite ceramics were fabricated using a Powder-Sol (P-S) method with Nb2O5 fine powder suspended in the barium strontium titanate (abbreviated as BST) sol solution.By X-ray diffraction (XRD) investigations, it is found that the tetragonal tungsten bronze (TTB) phase and perovskite phase were co-present in compositions.The average grain size of BST and SBN phase is 140 nm and 2.2 μm, respectively.The room temperature relative dielectric constant is 1445 for this sample measured at 1 kHz and zero bias.In the room temperature, the pyroelectric coefficient of the 0.7BaO·0.3SrO·0.3Nb2O5·0.7TiO2 is 39 nc/cm2.℃.The maximum value of FD is about 2.4× 10-5 Pa-1/2 at 45℃.

关键词： Electronic Materials Electron microscopy composite ceramics pyroelectric coefficient

作者: LIan-wei Shan Wei Li Ji-hua Wang Zhong Li Li-min Dong

作者单位: School of Material Science and Engineering,Harbin University of Science and Technology and Key Labor Jilin aviation maintenance limited liability company,Jilin,132102,China

会议类型: 国际会议

会议名称: 2012 China Functional Materials Technology and Industry Forum(2012中国功能材料科技与产业高层论坛)(CFMTIF2012)

会议地点: 昆明

会议语种:英文

页码: 190-195

在线出版日期: 2012-11-09（万方平台首次上网日期，不代表论文的发表时间）