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Sintering Behavior and Mechanism of Pure BaTiO3 Ceramic Prepared by High-Gravity Reactive Precipitation

Journal Advanced Materials Research (Volumes 11 - 12)
Volume AICAM 2005
Edited by Masayuki Nogami, Riguang Jin, Toshihiro Kasuga and Wantai Yang
Pages 27-30
DOI 10.4028/www.scientific.net/AMR.11-12.27
Citation Xiao Hui Wang et al., 2006, Advanced Materials Research, 11-12, 27
Online since February, 2006
Authors Xiao Hui Wang, Xiao Lin Liu, Jian Feng Chen
Keywords Barium Titanate, Dilatometer, Mechanism, Sintering
Abstract

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.

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