X-ray photoemission and energy dispersive spectroscopy of hydroxyapatite-coated titanium
- Univ. of Illinois, Chicago, IL (United States). Coll. of Dentistry
- Argonne National Lab., IL (United States)
The purpose of this study was to determine the chemical composition changes of hydroxyapatite (HA) coated titanium using surface analysis (X-ray photoemission) and bulk analysis (energy dispersive spectroscopy). The specimens examined were controls and specimens aged 30 min and 3 h at room temperature in distilled water and 0.2M sodium phosphate buffer (pH 7.2). Each X-ray photoemission cycle consisted of three scans followed by argon sputtering for 10 min for usually 20 cycles, corresponding to a sampling depth of {approximately}1,500 {angstrom}. The energy dispersive spectroscopy analysis was on a 110 by 90 {micro}m area for 500 s. The X-ray photoemission results indicated the oxidation effect of water on the titanium (as TiO{sub 2}) and the effect of the buffer to increase the surface concentration of phosphorus. No differences in the chemical composition were observed by energy dispersive spectroscopy analysis.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 529544
- Journal Information:
- Journal of the American Ceramic Society, Vol. 80, Issue 7; Other Information: DN: Paper presented at the 24. annual meeting of the American Association for Dental Research, March 8--12, 1995, San Antonio, TX (US); PBD: Jul 1997
- Country of Publication:
- United States
- Language:
- English
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