Mixture of fuels approach for the solution combustion synthesis13; of Al2O3x2013;ZrO2 nanocomposite

Aruna, ST and Rajam, KS (2004) Mixture of fuels approach for the solution combustion synthesis13; of Al2O3x2013;ZrO2 nanocomposite. Materials Research Bulletin, 39 (2). pp. 157-167.

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A modified solution combustion approach was used for the first time in the preparation of nanosize zirconia13; toughened alumina (ZTA) composite. ZTA-1 with an average particle size of 37 nm was prepared using13; corresponding metal nitrates and urea. ZTA-2 with an average particle size of lt;10 nm was prepared by using mixture of fuels such as ammonium acetate, urea and glycine. The products formed were characterised by powder X-ray diffractometry, Transmission electron microscopy and BET surface area analysis. By using mixture of fuels, the energetics of the combustion reaction and eventually the properties of the combustion product have been changed. A series of combustion reactions were carried out to optimise the fuel ratio combinations required to obtain lt;10 nm ZTA particles. The microstructure of ZTA consisted of crystallites of Al2O3 and ZrO2 both of which were nanocrystalline as evident from TEM.

Item Type: Article
Additional Information: Copyright for this article belongs to Elsevier Ltd
Uncontrolled Keywords: Nanostructure;Composite;Electron microscopy;X-ray diffraction
Subjects: CHEMISTRY AND MATERIALS > Composite Materials
Depositing User: M/S ICAST NAL
Date Deposited: 25 Jan 2007
Last Modified: 07 May 2012 05:31
URI: http://nal-ir.nal.res.in/id/eprint/3986

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