Microwave-Assisted Preparation and Sintering of Mullite and Mullite–Zirconia Composites from Metal Organics

Ravi, BG and Praveen, V and Selvam, Panneer M and Rao, KJ (1998) Microwave-Assisted Preparation and Sintering of Mullite and Mullite–Zirconia Composites from Metal Organics. In: Materials Research Bulletin, 33 (10). pp. 1527-1536.

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Abstract

Decomposition characteristics of a mixture of aluminum-tri-sec butoxide (ASB) and tetraethyl orthosilicate (TEOS) in ethyl acetate solution by microwave pyrolysis was examined. The decomposed product was used as a second-stage precursor in the preparation of pure mullite $(3Al_2O_3\cdot2SiO_2)$. Mullite–zirconia composites were obtained, using the aLtd mixture along with zirconium-iso-propoxide as starting materials. Pellets of mullite and mullite–zirconia composites were sintered in a microwave oven using \beta-SiC as a secondary heater.

Item Type:	Journal Article
Publication:	Materials Research Bulletin
Publisher:	Elsevier
Additional Information:	Copyright of this article belongs to Elsevier.
Keywords:	A. ceramics;A. composites;C. thermogravimetric analysis (TGA);C. X-ray diffraction;D. microstructure
Department/Centre:	Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited:	29 Jun 2006
Last Modified:	19 Sep 2010 04:29
URI:	http://eprints.iisc.ac.in/id/eprint/7768

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