Surfactant effects in the mechanical activation of ultrafine alumina powders made by pneumocirculation grinding

Surfactant effects in the mechanical activation of ultrafine alumina powders made by... Studies have been made on the effects of mechanochemical activation with the addition of surfactants on the characteristics of the pneumocirculation grinding product from alumina powder and the properties of the corundum ceramic based on it. Processing the powder in an aqueous solution of polyvinyl alcohol and methyl cellulose with concentration up to 1% has a marked effect on the detailed crystal structure of the particles and improves the technological properties of the powder. Activation produces defects at the particle surfaces, which tend to intensify the consolidation of the powder up to high sintering temperatures. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Surfactant effects in the mechanical activation of ultrafine alumina powders made by pneumocirculation grinding

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Publisher
Springer US
Copyright
Copyright © 2009 by Springer Science+Business Media, Inc.
Subject
Materials Science; Characterization and Evaluation of Materials; Materials Science, general; Ceramics, Glass, Composites, Natural Materials
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/s11148-009-9183-y
Publisher site
See Article on Publisher Site

Abstract

Studies have been made on the effects of mechanochemical activation with the addition of surfactants on the characteristics of the pneumocirculation grinding product from alumina powder and the properties of the corundum ceramic based on it. Processing the powder in an aqueous solution of polyvinyl alcohol and methyl cellulose with concentration up to 1% has a marked effect on the detailed crystal structure of the particles and improves the technological properties of the powder. Activation produces defects at the particle surfaces, which tend to intensify the consolidation of the powder up to high sintering temperatures.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Dec 4, 2009

References

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