Low-temperature fine-grained alumina-aluminum titanate composites produced from a titania-coated alumina precursor

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Title:	Low-temperature fine-grained alumina-aluminum titanate composites produced from a titania-coated alumina precursor
Authors:	Mani, J Ananthakumar, S Mukundan, P Warrier, K G K
Keywords:	Thermal-shock resistance Mullite composite
Issue Date:	2007
Publisher:	Wiley
Citation:	Journal of the American Ceramic Society 90(10):3091-3094;Oct 2007
Abstract:	A method for the preparation of alumina-aluminum titanate (AT) composites, which can be sintered to high density with a fine-grained microstructure at < 1450 degrees C, is reported. The composite precursor is alumina particles coated by sol-gel-derived titania, which reacts during sintering to form AT in situ at temperature as low as 1300 degrees C. The composite can be sintered at 1350 degrees C to 98% density with 1.5-2.0 mu m grain size. Other composites containing 5-50 wt% AT are also investigated.
URI:	http://ir.niist.res.in:8080/jspui/handle/123456789/1838
ISSN:	0002-7820
Appears in Collections:	2007

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