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Interfacial reactions in hydroxyapatite/alumina nanocomposites

Viswanath, B and Ravishankar, N (2006) Interfacial reactions in hydroxyapatite/alumina nanocomposites. In: Scripta Materialia, 55 (10). pp. 863-866.

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The integrity of composites is determined by the interfacial reactions that take place during processing. The interfacial reaction between hydroxyapatite and alumina has been studied. It was found that alumina completely reacted with hydroxyapatite and formed alumina-rich calcium aluminates at relatively low temperatures. This has been attributed to the diffusion of $Ca^{2+}$ from hydroxyapatite into the alumina matrix. The depletion of $Ca^{2+}$ from hydroxyapatite leads to the decomposition of hydroxyapatite in to tricalcium phosphate at lower temperatures.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Hydroxyapatite;Composites;Interfaces;Sintering;Microstructure
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Depositing User: Ramya Krishna
Date Deposited: 26 May 2008
Last Modified: 19 Sep 2010 04:45
URI: http://eprints.iisc.ac.in/id/eprint/14053

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