Preparation and Sintering of Monosized Al2O3-TiO2 Composite Powder

An unagglomerated, monosized Al2O3TiO2 composite powder was prepared by the stepwise hydrolysis of titanium alkoxide in an Al2O3 dispersion. Particle size was controlled by selecting the particle size of the starting Al2O3 powder; TiO2 content was determined by the amount of alkoxide hydrolyzed. A c...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1986-02, Vol.69 (2), p.C-22-C-24
Main Authors: Okamura, Heromichi, Barringer, Eric A., Bowen, H. Kent
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Exact sciences and technology
Technical ceramics
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Summary:An unagglomerated, monosized Al2O3TiO2 composite powder was prepared by the stepwise hydrolysis of titanium alkoxide in an Al2O3 dispersion. Particle size was controlled by selecting the particle size of the starting Al2O3 powder; TiO2 content was determined by the amount of alkoxide hydrolyzed. A composite‐powder compact containing 50 mol% TiO2, when fired at 1350°C for 30 min, showed nearly theoretical density with aluminum titanate phase formation.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1986.tb04726.x