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Enhancing the Bonding Strength of Plasma-Sprayed HA Coating on Pure Ti

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Abstract:

A layer of bioceramic HA was coated on laser gas nitrided and grit-blasted pure Ti substrates using plasma-spraying technique, respectively. X-ray diffraction analysis showed that the microstructures of the coating were mainly composed of HA, amorphous calcium phosphate and some minute phases of tricalcium phosphate, tetracalcium phosphate and calcium oxide. The experimental results showed that the 3-D TiN dendritic scaffold structure produced on the surface of pure Ti using laser gas nitriding technique in advance could anchor the HA coating and improved the interfacial adherence significantly as compared with those on the grit blasted surfaces.

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Periodical:

Materials Science Forum (Volumes 561-565)

Pages:

1553-1556

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.561-565.1553

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Online since:

October 2007

Authors:

Sen Yang, Hau Chung Man

Keywords:

Hydroxyapatite (HAP), Plasma Spraying, Titanium (Ti)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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