Sintering Behavior and Mechanism of Pure BaTiO3 Ceramic Prepared by High-Gravity Reactive Precipitation
Sintering behavior and mechanism of barium titanate powders prepared by high-gravity reactive precipitation (HGRP) process has been investigated by a dilatometer. The mean particle size of barium titanate powders prepared by HGRP was about 80 nm. Pure BaTiO3 pellets were sintered at a constant heating rate of 2.0 K/min and the temperature of shrinkage-onset for pellet was 1060°C. The maximal shrinkage was 165um and the maximum of shrinkage rate was 8.0 x 10-3 / min at 1170°C. The sintering mechanism for the initial stages of sintering was determined by isothermal dilatometric measurements and was found to be viscous flow.
Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
X. H. Wang et al., "Sintering Behavior and Mechanism of Pure BaTiO3 Ceramic Prepared by High-Gravity Reactive Precipitation", Advanced Materials Research, Vols. 11-12, pp. 27-30, 2006