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Dielectric Properties and Microstructure of Ca5Nb2Ti012 and Ca5Ta2TiO12

Published

Author(s)

Leonid A. Bendersky, J J. Krajewski, R J. Cava

Abstract

The 1 MHz dielectric properties of Ca5Nb2TiO12 and Ca5Ta2TiO12 compounds were reported recently. Both compounds have a common characteristic dependence of the temperature coefficient of dielectric constant (TCK) and dielectric constant Epilson (sub r) on sintering temperature. For both compounds a TCK5Nb2TiO12 and 1:2 for Ca5Ta2TiO12. Both compounds have a tilting phase transition from the disordered Pm3M to distored Pnma (with the a(super-)b(super+)a(super-) tilt of octahedra) structures at temperatures that coincide with the observed kinks at TA1 and TA2 in the TCK (Ts) and K(Ts) curves.
Citation
Journal of European Ceramic Society
Volume
21 No. 15

Keywords

Ca<sub>5</sub>Nb<sub>2</sub>TiO<sub>12</sub> and Ca<sub>5</sub>T, dieledtric properties, electron microscopy, functional applications, sintering

Citation

Bendersky, L. , Krajewski, J. and Cava, R. (2001), Dielectric Properties and Microstructure of Ca<sub>5</sub>Nb<sub>2</sub>Ti0<sub>12</sub> and Ca<sub>5</sub>Ta<sub>2</sub>TiO<sub>12</sub>, Journal of European Ceramic Society (Accessed April 17, 2024)
Created January 1, 2001, Updated February 17, 2017