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Structure, solubility and bond strength of thin calcium phosphate coatings produced by ion beam sputter deposition
J L Ong1, L C Lucas, W R Lacefield
1Department of Biomedical Engineering, University of Alabama, Birmingham 35294.
Biomaterials
|January 1, 1992
Abstract:
Ion beam sputter deposition was used to produce thin calcium phosphate coatings on titanium substrates. Structure, solubility and bond strength of the as-sputtered and heat treated coatings were evaluated. X-ray diffraction (XRD) analysis of the heat treated coatings revealed a hydroxyapatite-type structure. The heat treated coatings were found to have significantly lower solubility as compared to the amorphous as-sputtered coatings. Although the crystalline coatings exhibited the lowest solubility, in general, the bond strengths were lower for the heat treated coatings.