Charactering and Sintering of BaZrO₃ Doped with TiO₂

Abstract:

The high sintering temperatures required for solid-state derived powders is a significant obstacle inhibiting more widespread use of single pure phase BaZrO₃ with high density. The aim of this research was to reduce the sintering temperature whilst maintaining pure single phase BaZrO₃. By using of sintering aid, such as TiO₂ additive, the pure perovskite BaZrO₃ powder have been fabricated with the solid state chemistry at 1250°C. Low levels of TiO₂ (3%) produced the pure BaZrO₃ particles with the smallest size, and the corresponding sintered ceramic has the density of 95% theoretical using sintering temperature as low as 1550°C. The microstructure of the particular ceramic with full density confirmed that the particle grain in ceramic block have shaped with the less pore and connected thickly.

• Periodical: Key Engineering Materials (Volume 492)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.492.312
• Online since: September 2011
• Authors: Cheng Zhang, Na Zhang, Dan Yu Jiang, Ling Cong Fan
• Keywords: Density, Sintering, TiO₂ Additive

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