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Influence of Li Addition on the Sintering and Dielectric Properties of PNN-PMW-PT Relaxor Ferroelectrics

Published online by Cambridge University Press:  15 February 2011

Raghu Natarajan  and
Joseph P. Dougherty
Raghu Natarajan
Affiliation:
Center for Dielectric Studies, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802.
Joseph P. Dougherty
Affiliation:
Center for Dielectric Studies, Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802.
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Abstract

Compositions in the PNN-PMW-PT system can be tailored to give high dielectric constant for MLC applications. Low temperature firing of MLC is always advantageous in using the less expensive electrode systems. Controlled addition of LiNO3 reduces the sintering temperature, increases the fired density and influences the microstructure of the ceramics. It also raises the peak dielectric constant and shifts the Curie temperature. The possible role of Li+ in modifying the characteristics of the ceramics is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 453: Symposium R – Solid State Chemistry of Inorganic Materials , 1996 , 473
Copyright
Copyright © Materials Research Society 1997

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