Sintering Behavior of Pure and Nb-Doped BaTiO3 Powder Prepared by High-Gravity Reactive Precipitation

Xiao Hui Wang; Xiao Lin Liu; Tao Yan; Jian Feng Chen

doi:10.4028/www.scientific.net/KEM.336-338.2293

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HomeKey Engineering MaterialsKey Engineering Materials Vols. 336-338Sintering Behavior of Pure and Nb-Doped BaTiO3...

Sintering Behavior of Pure and Nb-Doped BaTiO₃ Powder Prepared by High-Gravity Reactive Precipitation

Abstract:

Sintering behavior of pure and Nb-doped barium titanate powders prepared by high-gravity reactive precipitation (HGRP) process was investigated. A thermal dilatometer was employed to monitor the sintering shrinkage continuously during sintering. TEM and SEM were used to characterize the microstructures of the samples. The experimental results confirmed that Nb-doped BaTiO3 ceramics sintered at 1220°C for 2 h reached a larger densification of 97.0% relative density compared with 94.6% of pure BaTiO3 ceramics sintered at 1265°C for 2 h, and Nb-doped BaTiO3 ceramics had a smaller grain size (1.2μm) than that of pure BaTiO3 ceramics (2μm).

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Key Engineering Materials (Volumes 336-338)

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2293-2295

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.336-338.2293

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April 2007

Authors:

Xiao Hui Wang, Xiao Lin Liu, Tao Yan, Jian Feng Chen

Keywords:

Barium Titanate (BT), Thermal Dilatometer

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