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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/6263

Title: Synthesis and characterisation of lead magnesium niobate having exceptionally high dielectric constant
Authors: GUPTA, SM
HARENDRANATH, CS
KULKARNI, AR
Keywords: pb(mg1/3nb2/3)o3
microstructure
powder
Issue Date: 1997
Publisher: ELSEVIER SCI LTD
Citation: CERAMICS INTERNATIONAL, 23(3), 191-196
Abstract: Exceptionally high dielectric constant, approximate to 28,000 (1 kHz) at T-c (-18 degrees C) has been achieved in stoichiometric lead magnesium niobate (PMN) ceramics prepared by partial oxalate route. Sintering at 1300 degrees C for 2 h in closed alumina crucible resulted in a highly dense PMN sample. Dielectric measurements with frequency showed a typical relaxer behaviour. Microstructure investigation along with electron probe microanalysis (EPMA) provide interesting clues to the observed material behaviour. Apart from grain size and density, lead oxide distribution controls the dielectric properties. (C) 1997 Elsevier Science Limited and Techna S.r.l.
URI: http://dx.doi.org/10.1016/S0272-8842(96)00011-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/6263
http://hdl.handle.net/10054/6263
ISSN: 0272-8842
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