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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
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.ernet.in/id/eprint/7768

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