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Research Paper | Material Science and Engineering | India | Volume 4 Issue 6, June 2015
Synthesis and Characterization of LSMO-(BCT-BZT) Composites
S. S. Mane | D. J. Salunkhe [2]
Abstract: The present paper reports synthesis and characterization of LSMO- (BCT-BZT) composites. yLSMO+ (1-y) [xBCT- (1-x) BZT] particulate composites are prepared for y = 0.1 & 0.175 and for x = 0.50. Ferrite La0.67Sr0.33MnO3 (LSMO) is synthesized via hydroxide co-precipitation route while ferroelectric composition [x (Ba0.7Ca0.3TiO3) - (1-x) (BaZr0.2Ti0.8O3)] (BCT-BZT) is synthesized via ceramic route, The crystal structures of LSMO, 0.50BCT- 0.50 BZT and LSMO- (0.50BCT-0.50BZT) are proved using X-ray diffractograms, while microstructures are proved using scanning electron microscope. The dielectric properties of composites are determined as a function of frequency in the range 100 Hz to 1 MHz. The dielectric constant () in case of yLSMO+ (1-y) [xBCT- (1-x) BZT] composites is expected to have two contributions, one due to parent (BCT-BZT) ferroelectric and other due to the interfacial polarization occurring at the interfaces between ferrite (LSMO) and ferroelectric (BCT-BZT) phases. To understand the observed behavior of in perspective of these models, the variation of loss tangent tan as a function of frequency are also determined in the same frequency range.
Keywords: Composites, Crystal structure, Surface Morphology, Dielectric properties
Edition: Volume 4 Issue 6, June 2015,
Pages: 1030 - 1033
Similar Articles with Keyword 'Composites'
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Wadaje Smarnika Balasaheb | S. Y. Pawar
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Doctoral Thesis, Material Science and Engineering, India, Volume 11 Issue 5, May 2022
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