Please use this identifier to cite or link to this item: http://localhost:8080/xmlui/handle/123456789/1982
Title: Microstructure and high temperature deformation characteristics of sol–gel derived aluminium titanate–mullite composites
Authors: Ananthakumar, S
Jayasankar, M
Warrier, K G K
Keywords: Composite materials
Sol-gel methods
Issue Date: 2009
Publisher: Elsevier
Citation: Materials Chemistry and Physics 117(2-3):359-364;15 Oct 2009
Abstract: Aluminium titanate (AT)-mullite composites with varying compositions were processed by sol-gel technique. The influence of mullite on the microstructure and creep deformation of AT-mullite composites was investigated. in the composites mullite addition was varied from 0 to 100 vol% The AT-80 vol.% mullite composite sintered at 1600 degrees C resulted in fine-grained microstructure with an average grain size of 2.5 mu m. From the steady-state creep analysis of the different AT-mullite composites, the activation energies for the creep deformation and stress exponents were determined. The activation energies in the range 655-874 kJ mol(-1) were obtained for various the sol-gel derived AT-mullite composites. Similarly stress exponent values were found in the range 1.5-1.9.
ISSN: 0254-0584
Appears in Collections:2009

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