Chemical and kinetic features of oxidation of powder titanium carbide

Chemical and kinetic features of oxidation of powder titanium carbide Methods of complex thermal and x-ray phase analysis combined with thermodynamic computations are used to study the mechanism of high-temperature oxidation of TiC. It is shown that oxidation under the conditions of programmed heating occurs in three stages. In the first stage, anatase is formed on the surface of the particles. In the second stage, the chemical reaction of the formation of anatase occurs against the background of an anatase → rutile phase transformation. The third stage is characterized by the formation of a rutile layer. The particles of rutile formed as a result of the phase transformation serve as nuclei for the growth of the new phase. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Refractories and Industrial Ceramics Springer Journals

Chemical and kinetic features of oxidation of powder titanium carbide

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Publisher
Springer Journals
Copyright
Copyright © 2000 by Kluwer Academic/Plenum Publishers
Subject
Chemistry; Characterization and Evaluation of Materials; Materials Science; Ceramics, Glass, Composites, Natural Methods
ISSN
1083-4877
eISSN
1573-9139
D.O.I.
10.1007/BF02762636
Publisher site
See Article on Publisher Site

Abstract

Methods of complex thermal and x-ray phase analysis combined with thermodynamic computations are used to study the mechanism of high-temperature oxidation of TiC. It is shown that oxidation under the conditions of programmed heating occurs in three stages. In the first stage, anatase is formed on the surface of the particles. In the second stage, the chemical reaction of the formation of anatase occurs against the background of an anatase → rutile phase transformation. The third stage is characterized by the formation of a rutile layer. The particles of rutile formed as a result of the phase transformation serve as nuclei for the growth of the new phase.

Journal

Refractories and Industrial CeramicsSpringer Journals

Published: Nov 21, 2007

References

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