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Multilayer approach to fabricate bioactive glass coatings on Ti alloys

J. M. Gomez-Vega / E. Saiz / A. P. Tomsia / G. W. Marshall / S. J. Marshall

Glasses in the system Si-Ca-Na-Mg-P-K-O with thermal expansion coefficients close to that of Ti6Al4V were used to coat the titanium alloy by a simple enameling technique. Firings were done in air at temperatures between 800 and 840 C and times up to 1 minute. Graded compositions were obtained by firing multilayered glass coatings. Hydroxyapatite (HA) particles were mixed with the glass powder and the mixture was placed on the outer surface of the coatings to render them more bioactive. Coatings with excellent adhesion to the substrate and able to form apatite when immersed in a simulated body fluid (SBF) can be fabricated by this methodology.

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Multilayer approach to fabricate bioactive glass coatings on Ti alloys

J. M. Gomez-Vega / E. Saiz / A. P. Tomsia / G. W. Marshall / S. J. Marshall

Glasses in the system Si-Ca-Na-Mg-P-K-O with thermal expansion coefficients close to that of Ti6Al4V were used to coat the titanium alloy by a simple enameling technique. Firings were done in air at temperatures between 800 and 840 C and times up to 1 minute. Graded compositions were obtained by firing multilayered glass coatings. Hydroxyapatite (HA) particles were mixed with the glass powder and the mixture was placed on the outer surface of the coatings to render them more bioactive. Coatings with excellent adhesion to the substrate and able to form apatite when immersed in a simulated body fluid (SBF) can be fabricated by this methodology.

Multilayer approach to fabricate bioactive glass coatings on Ti alloys

J. M. Gomez-Vega / E. Saiz / A. P. Tomsia / G. W. Marshall / S. J. Marshall

Glasses in the system Si-Ca-Na-Mg-P-K-O with thermal expansion coefficients close to that of Ti6Al4V were used to coat the titanium alloy by a simple enameling technique. Firings were done in air at temperatures between 800 and 840 C and times up to 1 minute. Graded compositions were obtained by firing multilayered glass coatings. Hydroxyapatite (HA) particles were mixed with the glass powder and the mixture was placed on the outer surface of the coatings to render them more bioactive. Coatings with excellent adhesion to the substrate and able to form apatite when immersed in a simulated body fluid (SBF) can be fabricated by this methodology.

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Title:

Multilayer approach to fabricate bioactive glass coatings on Ti alloys

Contributors:

J. M. Gomez-Vega (author) / E. Saiz (author) / A. P. Tomsia (author) / G. W. Marshall (author) / S. J. Marshall (author)

Publication date:

1998

Size:

6 pages

Type of media:

Report

Type of material:

No indication

Language:

English

Keywords:

Coatings, Colorants, & Finishes , Nonferrous Metals & Alloys , Coatings , Titanium alloys , Enameling , Adhesion , Air , Alloys , Apatites , Body fluids , Glass , Mixtures , Substrates , Thermal expansion , Bioactive glass

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