RELAXOR BEHAVIOR OF BaZr0.2Ti0.8O3 CERAMICS WITH DIFFERENT GRAINS.

Authors :: CHUNLIN FU
FUSHENG PAN
WEI CAI
XIAOLING DENG
Source :: Integrated Ferroelectrics; 2008, Vol. 104 Issue 1, p1-7, 7p, 3 Black and White Photographs, 1 Chart, 3 Graphs
Publication Year :: 2008
Abstract: The surface morphology and dielectric properties of BaZr0.2Ti0.8O3 ceramics sintered at 1350°C for 0.5 h, 4 h and 8 h in air atmosphere were investigated. As the sintering time increased, the average grain size of the BZT ceramics increased. The temperature dependence of the dielectric constant was studied and an enhanced diffuse phase transition behavior is found to be caused by the decreased grain size. [ABSTRACT FROM AUTHOR]