Self-propagating high-temperature synthesis of Al2O3/TiC-based ceramic materials

Dense Al 2 O 3 /TiC composite ceramic materials are synthesized using the SHS compaction of mixtures based on TiO 2 + Al + C. Mineralizing and heating additives are introduced into compounds. The phase composition and microstructure of combustion products are investigated by x-ray phase analysis, el...

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Bibliographic Details
Published in:Inorganic materials 2009-02, Vol.45 (2), p.211-219
Main Authors: Kobyakov, V. P., Barinova, T. V., Ratnikov, V. I.
Format: Article
Language:English
Subjects:
Aluminum
Aluminum oxide
Ceramics
Chemistry
Chemistry and Materials Science
Combustion products
Graphite
Industrial Chemistry/Chemical Engineering
Inorganic Chemistry
Materials Science
Microstructure
Self-propagating synthesis
Titanium dioxide
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Summary:Dense Al 2 O 3 /TiC composite ceramic materials are synthesized using the SHS compaction of mixtures based on TiO 2 + Al + C. Mineralizing and heating additives are introduced into compounds. The phase composition and microstructure of combustion products are investigated by x-ray phase analysis, electron microscopy, and microprobe techniques. Two Al 2 O 3 modifications are revealed. Special attention is devoted to the presence of residual graphite. The mechanisms of phase formation and formation of the microstructure of combustion products are considered.
ISSN:0020-1685
1608-3172
DOI:10.1134/S0020168509020198