Nanostructured composite ceramic materials in the ZrO2-Al2O3 system

The composite ceramic materials based alumina and zirconia in the monoclinic form (10 wt %) or the tetragonal form stabilized by yttrium (7-45 wt %) are produced from metastable nanopowders through magnetic pulsed compaction followed by free sintering. The specific features revealed in the shrinkage...

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Bibliographic Details
Published in:Glass physics and chemistry 2007-08, Vol.33 (4), p.379-386
Main Authors: Khrustov, V. R., Ivanov, V. V., Kotov, Yu. A., Kaigorodov, A. S., Ivanova, O. F.
Format: Article
Language:English
Subjects:
Ceramics
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Summary:The composite ceramic materials based alumina and zirconia in the monoclinic form (10 wt %) or the tetragonal form stabilized by yttrium (7-45 wt %) are produced from metastable nanopowders through magnetic pulsed compaction followed by free sintering. The specific features revealed in the shrinkage are investigated at temperatures in the range 1400-1500°C. The development of the microstructure and polymorphic transformations are analyzed using X-ray diffraction and atomic-force microscopy. The fracture toughness and the microhardness of the samples are determined by the indentation technique.[PUBLICATION ABSTRACT]
ISSN:1087-6596
1608-313X
DOI:10.1134/S1087659607040128