Functionally graded ceramic material prepared by spark plasma sintering (SPS)

A procedure for preparing a functionally graded material in the high-temperature ceramic–SiC system with step composition variation profile is considered. Five-layer samples of a functionally graded material (layer arrangement: 100, 75, 50, 25, and 0 vol % high-temperature ceramic) were prepared by...

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Bibliographic Details
Published inRussian journal of applied chemistry Vol. 90; no. 7; pp. 1117 - 1121
Main Authors Kachaev, A. A., Lebedeva, Yu. E., Osin, I. V., Vaganova, M. L.
Format Journal Article
LanguageEnglish
Published Moscow Pleiades Publishing 01.07.2017
Springer Nature B.V
Subjects
Ceramics
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Composite Materials
Functionally gradient materials
Heat resistance
Industrial Chemistry/Chemical Engineering
Oxidation
Plasma sintering
Silicon carbide
Spark plasma sintering
Thermal cycling
Thermal resistance
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Summary:A procedure for preparing a functionally graded material in the high-temperature ceramic–SiC system with step composition variation profile is considered. Five-layer samples of a functionally graded material (layer arrangement: 100, 75, 50, 25, and 0 vol % high-temperature ceramic) were prepared by spark plasma sintering. No cracks and no delamination were observed in the samples after thermal cycling in an oxidizing atmosphere at 1400 and 1600°С. A study of the properties and heat resistance of the ceramic functionally graded material revealed its high quality at relatively low density; i.e., spark plasma sintering shows promise as a procedure for preparing this material.
ISSN:1070-4272
1608-3296
DOI:10.1134/S107042721707014X