Solid-phase processes in a ceramic matrix in the system SiO2 - Al^sub 2^O3 - TiO2 With addition of fibrous nanostructural aluminum oxide

The formation of a composite ceramic based on the system SiO2 - Al^sub 2^O3 - TiO2 with the addition of γ- and α-Al^sub 2^O3 nanostructural powders during heat treatment in the temperature range 1300 - 1400°C is investigated. It is established that the introduction of γ-Al^sub 2^O3 reactive nanostru...

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Bibliographic Details
Published in:Glass and ceramics 2010-07, Vol.67 (1-2), p.47
Main Authors: Ul'yanova, T M, Krut'ko, N P, Dyatlova, E M, Paémurd, E S, Podbolotov, K B
Format: Article
Language:English
Online Access:Get full text
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Summary:The formation of a composite ceramic based on the system SiO2 - Al^sub 2^O3 - TiO2 with the addition of γ- and α-Al^sub 2^O3 nanostructural powders during heat treatment in the temperature range 1300 - 1400°C is investigated. It is established that the introduction of γ-Al^sub 2^O3 reactive nanostructural powder stimulated a solid-phase reaction between the silica and alumina with mullite being formed, while the addition of α-Al^sub 2^O3 powder led to the formation of aluminum titanate. These processes altered the phase composition and the porous and crystalline structure of the composites and increased their physical - chemical and thermophysical properties.[PUBLICATION ABSTRACT]
ISSN:0361-7610
1573-8515
DOI:10.1007/s10717-010-9227-2