Influence of substitution of Nd3+ for Bi3+ on structure and piezoelectric properties of SrBi2-χNdχNb2O9 (χ=0, 0.1, 0.2 and 0.4)

摘要：

SrBi2-χNdχNb2O9 (χ=0,0.1,0.2 and 0.4) bismuth layer-structured ferroelectric ceramics were prepared by the solid-state reaction sintering method.The accurate position of Nd element in SrBi2-χNdχNb2O9 ceramics was determined by the X-ray Rietveld method and Synchrotron radiation X-ray absorption fine structure (XAFS) technology.The partial substitution of Nd3+ for Bi3+ leads to the decrease in the distortion of NbO6 octahedron for SrBi2-χNdχNb2O9 ceramics and also lowers the piezoelectric properties of SrBi2-χNdχNb2O9 ceramics.Meanwhile,the temperature coefficient of resonant frequency (TCF) decreases when Nd element partially replaces Bi element in SrBi2-χNdχNb2O9 ceramics.

关键词： bismuth layer-structured ferroelectrics X-ray Rietveld method synchrotron radiation XAFS piezoelectric properties

作者: SUN Lin CHU Jun-hao YANG Ping-xiong YUE Fang-yu LI Ya-wei FENG Chu-de MAO Cao-liang

作者单位: Key Laboratory of Polar Materials and Devices of Ministry of Education,East China Normal University, Shanghai Institute of Ceramics,Chinese Academy of Sciences,Shanghai 200050,China

会议类型: 国际会议

会议名称: 2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)

会议地点: 长沙

会议语种:英文

页码: 1459-1463

在线出版日期: 2009-11-22（万方平台首次上网日期，不代表论文的发表时间）