Ferroelectric, Pyroelectric and Piezoelectric Studies in Ba5SmTi3Nb7O30 Ceramic

摘要：

In the present work, the polycrystalline sample of Ba5SmTi3Nb7O30, a member of tungsten bronze family, was prepared by solid-state reaction method and studied for their ferroelectric, pyroelectric and piezoelectric properties. X-ray diffraction (XRD) analysis reveals the formation of single-phase compound with an orthorhombic structure. The grain morphology of the sample has been investigated by scanning electron microscopy. The average grain size of the compound is observed to be in the range of 2 μm. The temperature variations of polarization–electric field (P-E) loops of the compound have been reported. The remanent polarization (2Pr) value of the compound is found to be ~ 2.3 μC/cm2 at room temperature. The variation of pyroelectric coefficient with temperature is reported. Pyroelectric figure of merit have been calculated from the pyroelectric coefficients. Piezoelectric coefficients (d33 and g33) of the compound have also been measured.

作者: Prasun Ganguly Sheela Devi A. K. Jha K. L. Deori

作者单位: Thin Film & Materials Science Laboratory,Department of Applied Physics,Delhi Technological University,Delhi – 110042,India.

会议类型: 国际会议

会议名称: 2009 The 18th IEEE International Symposium on Applications of Ferroelectrics(2009年国际铁电学暨IEEE国际铁电应用联合会议)

会议地点: 西安

会议语种:英文

页码: 100-104

在线出版日期: 2009-08-23（万方平台首次上网日期，不代表论文的发表时间）