Porosity reduction model in titanium hydroxyapatite FGM composites using shrinkage measurement

Rahbari, R.G. and Abu Kasim, N.H. and Madfa, A.A. and Hamdi, M. and Bayat, M. (2011) Porosity reduction model in titanium hydroxyapatite FGM composites using shrinkage measurement. Materials Research Innovations, 15 (Supple). s110-s113. ISSN 1432-8917

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Abstract

A multilayered titanium (Ti)-hydroxyapatite (HA) functionally graded material was produced via pressureless sintering at 1100 degrees C. The initial and final porosities were determined via shrinkage measurements. The final porosity verification was carried out by the Archimedes method. The experimental porosity measurements were compared with two proposed models. The macroscopic and microstructure features and the measured porosities confirmed that the volume fraction porosity was associated with both matrix and reinforcing particles in all cases. The percolation threshold was observed at x=0.75 in the xTi+(1-x)HA mixture.

Item Type: Article
Uncontrolled Keywords: percolation threshold porosity reduction model shrinkage measurement functionally graded materials metal-ceramic composites solid-particle method fabrication
Subjects: T Technology > TS Manufactures
Divisions: Faculty of Engineering
Depositing User: Mr. Mohammed Salim Abd Rahman
Date Deposited: 09 Jul 2013 04:26
Last Modified: 21 Dec 2014 08:02
URI: http://eprints.um.edu.my/id/eprint/6919

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