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Chemical Composition and Morphology of Titanium Surface Oxides

Published online by Cambridge University Press:  22 February 2011

J. Lausmaa ,
L. Mattsson ,
U. Rolander  and
B. Kasemo
J. Lausmaa
Affiliation:
Department of Physics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
L. Mattsson
Affiliation:
Department of Physics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
U. Rolander
Affiliation:
Department of Physics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
B. Kasemo
Affiliation:
Department of Physics, Chalmers University of Technology, S-412 96 Gothenburg, Sweden
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Abstract

Titanium has emerged as one of the most tissue-compatible metallic materials. The high degree of biocompatibility is intimately connected with the oxide that forms on the metal surface. In the present work a broad characterization has been made of titanium samples pretreated both by presently used clinical procedures (mechanical machining, ultrasonic cleaning and autoclaving) and by alternative preparation procedures such as electropolishing and anodic oxidation. The former samples are found to have a surface oxide of TiO2 which is 30–50 Å thick, with some trace element contamination and a relatively large carbon content (30–50 % of a monoatomic layer). The anodically oxidized samples also consist of TiO2 with an oxide thickness range of 50–2000 Å, but the morphology and crystallinity of the anodic oxides are found to depend on thickness and preparation conditions.

The main methods of investigation used in the present study were ESCA, SIMS and transmission electron microscopy.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 55: Symposium G – Biomedical Materials , 1985 , 351
Copyright
Copyright © Materials Research Society 1986

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References

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