Microstructure in Pressureless-Sintered Iron-Containing Hydroxyapatite/Titanium Composites

Abstract:

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Pure hydroxyapatite (HA) is brittle and it cannot be directly used for the load-bearing biomedical applications. Aim of this paper was to present a new iron-containing hydroxyapatite/titanium composites synthesized via pressureless sintering at a relatively low temperature of 1000°C using nano-sized HA powders and Ti-33%Fe mixed powders. The microstructure and composition of the new type composites were evaluated. The results showed that the uniformly distributed reinforcing particles had a unique and favorable core/shell microstructure after sintering that consisted of outer titanium and inner iron. The mechanism for the formation of the core/shell structure was discussed. The addition of iron reduced the decomposition rate of HA and the interaction between HA and titanium.

Info:

Periodical:

Advanced Materials Research (Volumes 160-162)

Edited by:

Guojun Zhang and Jessica Xu

Pages:

1582-1587

DOI:

10.4028/www.scientific.net/AMR.160-162.1582

Citation:

Q. Chang et al., "Microstructure in Pressureless-Sintered Iron-Containing Hydroxyapatite/Titanium Composites", Advanced Materials Research, Vols. 160-162, pp. 1582-1587, 2011

Online since:

November 2010

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Price:

$35.00

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