High-strength ceramics through colloidal control to remove defects

A study which shows how colloidal control of powders to remove agglomerates can be used to give high-strength sintered ceramics is discussed. The results indicate, for example, that a commercial alumina powder can be improved from 0.37 to 1.04 GPa in bend strength.

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Bibliographic Details
Published in:Nature (London) 1987-11, Vol.330 (6143), p.51-53
Main Authors: Alford, N. McN, Birchall, J. D, Kendall, K
Format: Article
Language:English
Subjects:
Aerosols
Aluminum
Ceramics
Chemistry
Colloidal gels. Colloidal sols
Colloidal state and disperse state
Emulsions. Microemulsions. Foams
Exact sciences and technology
General and physical chemistry
Physics
Powders
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Description
Summary:A study which shows how colloidal control of powders to remove agglomerates can be used to give high-strength sintered ceramics is discussed. The results indicate, for example, that a commercial alumina powder can be improved from 0.37 to 1.04 GPa in bend strength.
ISSN:0028-0836
1476-4687
DOI:10.1038/330051a0