A multilayer approach to fabricate bioactive glass coatings on Ti alloys

Conference · Tue Dec 01 00:00:00 EST 1998

OSTI ID:788020

Gomez-Vega, J M; Saiz, E; Tomsia, A P; Marshall, G W; Marshall, S J

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.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: National Institutes of Health (US)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 788020
• Report Number(s): LBNL-46553; R&D Project: 864615; TRN: AH200135%%162
• Resource Relation: Conference: MRS Fall Meeting 1998, Boston, MA (US), 11/30/1998--12/01/1998; Other Information: PBD: 1 Dec 1998
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ADHESION
AIR
ALLOYS
APATITES
BODY FLUIDS
COATINGS
GLASS
MIXTURES
SUBSTRATES
THERMAL EXPANSION
TITANIUM ALLOYS