X-ray Photoelectron Spectroscopy Characterization of Ion-Beam Sputter-Deposited Calcium Phosphate Coatings

X‐ray photoelectron spectroscopy (XPS) analysis of sputter‐deposited calcium phosphate coatings on titanium substrates revealed four distinct zones. The ambient‐exposed surface exhibited elevated concentrations of carbon because of atmospheric contamination. The bulk zone contained relatively consta...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 1991-09, Vol.74 (9), p.2301-2304
Main Authors: Ong, Joo L., Harris, Larry A., Lucas, Linda C., Lacefield, William R., Rigney, Douglas
Format: Article
Language:English
Subjects:
Applied sciences
Building materials. Ceramics. Glasses
calcium phosphate
Ceramic industries
Chemical industry and chemicals
coatings
Exact sciences and technology
flouroapatite
hydroxy-apatite
Miscellaneous
Technical ceramics
X-ray photoelectron spectroscopy
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Summary:X‐ray photoelectron spectroscopy (XPS) analysis of sputter‐deposited calcium phosphate coatings on titanium substrates revealed four distinct zones. The ambient‐exposed surface exhibited elevated concentrations of carbon because of atmospheric contamination. The bulk zone contained relatively constant concentrations of calcium, oxygen, phosphorus, and fluorine indicating the chemistry for calcium fluoride (CaF2) and fluorapatite (Ca5 (PO4),F) formation. The transitional zone exhibited elevated titanium and oxygen photoelectron peaks suggesting the coexistence of calcium phosphate compounds within the titanium oxide. The substrate was shown to be identical to the passivated titanium surface prior to deposition.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1151-2916.1991.tb08301.x