DSpace at IIT Bombay >
IITB Publications >
Please use this identifier to cite or link to this item:
|Title: ||Study of diffuse phase transition in BaTiO(3)-LaAlO(3)|
|Authors: ||GULWADE, D|
|Keywords: ||barium-titanate ceramics|
|Issue Date: ||2009|
|Publisher: ||ELSEVIER SCIENCE SA|
|Citation: ||JOURNAL OF ALLOYS AND COMPOUNDS, 481(1-2), 316-319|
|Abstract: ||BaTiO(3)-LaAlO(3) systems of the type Ba(1-3x)La(2x)Ti(1-3x)Al(4x)O(3) and Ba(1-x)La(x)Ti(1-x)Al(x)O(3) have been investigated. The compositions in each of the systems have been prepared by solid-state reaction. The presence of a perovskite single phase is confirmed using X-ray diffraction (XRD). XRD data has been analyzed using a Rietveld refinement package and lattice parameters have been extracted. The microstructure of sintered pellets has been investigated using SEM. The compositions have been characterized by dielectric spectroscopy between room temperature and 250 degrees C. The resulting compounds exhibit a significant enhancement of the dielectric constant and diffuseness. The compositions with higher diffuseness have been characterized using high-temperature XRD to study the nature of the phase transition. On the basis of the high-temperature XRD data, core-shell structure is ruled out. (C) 2009|
|Appears in Collections:||Article|
Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.