Ferroelectrics · 2005 · 21 citations · 10 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsCeramicsMaterials ChemistryDielectric CeramicsDielectric MaterialsDielectric PropertiesDielectricsElectrical Properties Of CeramicsSinteringBarium Titanate CeramicsCeramic DielectricsDielectric RelaxationMicrowave SinteringPhase Transitions In Dielectric CeramicsRelaxor Ferroelectric CeramicsSolid-state SinteringTemperature Dependence Of Electrical Properties
Dielectric ceramics with compositions belonging to the Ba(Nd x Ti1−2x Nb x )O 3 with varying concentration of x were prepared through Solid State Sintering route using both conventional and microwave sintering. The phase transformations were studied by dielectric measurements in a wide range of temperature and frequency. The relaxor behaviour is almost favoured as the composition deviates more from BaTiO 3 and as the substitution is heterovalent in the 6-coordination number crystallographic site. Keywords: Dielectric studiesnew lead-free relaxor dielectric ceramicsheterogeneityenvironmental friendlymicrowave sintering Acknowledgment The author would like to thank DRDO, Delhi, India for financial support in carrying the present research work. The author would also like to thank Prof. S. V. Suryanarayana, Prof. T. Bhimasankaram, Department of Physics, Osmania University, Hyderabad, India for constant encouragement. Paper originally presented at AMF-4, Bangalore, India, December 12ndash;15, 2003
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