Analysis of the formation of Al2O3 + Fe nanocomposites

The formation of Al 2 O 3 + Fe nanocomposites (in the range 0–20 wt % Fe) in the course of three sequential processes, such as dispersion, compaction, and sintering at a temperature of 1573 K, is investigated. It is revealed that the sintering is accompanied by the formation of the spinel phase at i...

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Bibliographic Details
Published in:Glass physics and chemistry 2009-04, Vol.35 (2), p.210-218
Main Authors: Goncharov, O. Yu, Karban’, O. V., Nemtsova, O. M., Il’in, I. A.
Format: Article
Language:English
Subjects:
Ceramics
Characterization and Evaluation of Materials
Chemistry and Materials Science
Composites
Glass
Materials Science
Nanocomposites
Natural Materials
Physical Chemistry
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Summary:The formation of Al 2 O 3 + Fe nanocomposites (in the range 0–20 wt % Fe) in the course of three sequential processes, such as dispersion, compaction, and sintering at a temperature of 1573 K, is investigated. It is revealed that the sintering is accompanied by the formation of the spinel phase at interfaces. It is demonstrated that the composition of the sintered samples corresponds to an equilibrium composition at a temperature of approximately 1073 K and that the spinel phase serves as a barrier layer preventing oxidation of iron
ISSN:1087-6596
1608-313X
DOI:10.1134/S108765960902014X