Effect of powder calcination on the sintering of hydroxyapatite

Tan, C.Y. and Ramesh, S. and Aw, K.L. and Yeo, W.H. and Hamdi, M. and Sopyan, I. (2008) Effect of powder calcination on the sintering of hydroxyapatite. Medical Journal of Malaysia, 63. pp. 87-88. ISSN 0300-5283

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Abstract

The sintering behaviour of synthesized HA powder that was calcined at various temperatures ranging from 700 degrees C to 1000 degrees C was investigated in terms of phase stability, bulk density, Young's modulus and Vickers hardness. The calcination treatment resulted in higher crystallinity of the starting HA powder. Decomposition of HA phase to form secondary phases was not observed in all the calcined powders. The results also indicated that powder calcination (up to 900 degrees C) prior to sintering has negligible effect on the sinterability of the HA compacts. However, powder calcined at 1000 degrees C was found to be detrimental to the properties of sintered hydroxyapatite bioceramics.

Item Type: Article
Uncontrolled Keywords: Bone Substitutes/chemical synthesis/*chemistry Crystallization Durapatite/chemical synthesis/*chemistry Humans Materials Testing Nanoparticles Pilot Projects Porosity Powders/chemical synthesis/*chemistry
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 09 Jul 2013 04:14
Last Modified: 27 Feb 2019 04:21
URI: http://eprints.um.edu.my/id/eprint/6938

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