TY - JOUR
T1 - Graded glass coatings for Co-Cr implant alloys
AU - Fujino, S.
AU - Tokunaga, H.
AU - Hata, S.
AU - Saiz, E.
AU - Tomsia, A. P.
N1 - Funding Information:
This work was supported by NIH/NIDCR Grant 1R01DE11289, at Lawrence Berkeley National Laboratory. S. Fujino wishes to thank the 2004 Yoshida Science Educational Promotion Foundation, Japan.
PY - 2005/5
Y1 - 2005/5
N2 - A graded glass coating for Vitallium®, a Co-Cr alloy, has been prepared using a simple enameling technique. The composition of the glasses has been tailored to match the thermal expansion of the alloys. The optimum glass composition and firing conditions (temperature and time) needed to fabricate homogeneous coatings with good adhesion to the alloy were determined. The final coating thickness ranged between 25 and 60 μm. Coatings fired under optimum conditions do not delaminate during indentation tests of adhesion. Excellent adhesion to the alloy has been achieved through the formation of 100 nm thick interfacial chromium-oxide (CrOx) layers. The graded glass (consisting of BIG and 6P50 layers) can be successfully coated to a Co-Cr alloy, and forms hydroxyapatite (HA) on the coating surface when immersed in a simulated body fluid (SBF) for 30 days.
AB - A graded glass coating for Vitallium®, a Co-Cr alloy, has been prepared using a simple enameling technique. The composition of the glasses has been tailored to match the thermal expansion of the alloys. The optimum glass composition and firing conditions (temperature and time) needed to fabricate homogeneous coatings with good adhesion to the alloy were determined. The final coating thickness ranged between 25 and 60 μm. Coatings fired under optimum conditions do not delaminate during indentation tests of adhesion. Excellent adhesion to the alloy has been achieved through the formation of 100 nm thick interfacial chromium-oxide (CrOx) layers. The graded glass (consisting of BIG and 6P50 layers) can be successfully coated to a Co-Cr alloy, and forms hydroxyapatite (HA) on the coating surface when immersed in a simulated body fluid (SBF) for 30 days.
UR - http://www.scopus.com/inward/record.url?scp=21144455961&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=21144455961&partnerID=8YFLogxK
U2 - 10.1007/s10853-005-1982-z
DO - 10.1007/s10853-005-1982-z
M3 - Article
AN - SCOPUS:21144455961
SN - 0022-2461
VL - 40
SP - 2499
EP - 2503
JO - Journal of Materials Science
JF - Journal of Materials Science
IS - 9-10
ER -