TY - JOUR
T1 - Effects of chemical and heat treatments on surface characteristics and biocompatibility of titanium-niobium alloys
AU - Feng, Kuo Chih
AU - Wu, En Yu
AU - Pan, Yung Ning
AU - Ou, Keng Liang
PY - 2007/11
Y1 - 2007/11
N2 - Alkali solution- and heat-treatments were employed to modify the surfaces of Ti-6A1-4V, Ti-40Nb-1Hf and Ti-30Nb-1 Fe-1 Hf alloys, and then the surface characteristics and the biocompatibility of the treated alloys were analyzed. The formation of porous surfaces that contain numerous nano-pores and irregular cracks, together with the increase in hydroxyl, TiO2 and Nb 2O5 contents in the surface layer of the treated Ti-40Nb-1Hf and Ti-30Nb-1Fe-1 Hf alloys, have been found to enhance biocompatibility which was evaluated by the osteoblast cell culture in vitro. In addition, the biocompatibility of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys are comparable to that of Ti-6Al-4V alloy. Alkali solution-and heat-treatments are believed to enhance bone-bonding ability of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys, and therefore are useful for surface modification practice.
AB - Alkali solution- and heat-treatments were employed to modify the surfaces of Ti-6A1-4V, Ti-40Nb-1Hf and Ti-30Nb-1 Fe-1 Hf alloys, and then the surface characteristics and the biocompatibility of the treated alloys were analyzed. The formation of porous surfaces that contain numerous nano-pores and irregular cracks, together with the increase in hydroxyl, TiO2 and Nb 2O5 contents in the surface layer of the treated Ti-40Nb-1Hf and Ti-30Nb-1Fe-1 Hf alloys, have been found to enhance biocompatibility which was evaluated by the osteoblast cell culture in vitro. In addition, the biocompatibility of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys are comparable to that of Ti-6Al-4V alloy. Alkali solution-and heat-treatments are believed to enhance bone-bonding ability of both Ti-40Nb-1Hf and Ti-30Nb-1Fe-1Hf alloys, and therefore are useful for surface modification practice.
KW - Alkali solution- and heat-treatments
KW - Biocompatibility
KW - Bone-bonding
KW - Titanium-niobium alloys
UR - http://www.scopus.com/inward/record.url?scp=37749026194&partnerID=8YFLogxK
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U2 - 10.2320/matertrans.MER2007083
DO - 10.2320/matertrans.MER2007083
M3 - Article
AN - SCOPUS:37749026194
SN - 0916-1821
VL - 48
SP - 2978
EP - 2985
JO - Materials Transactions
JF - Materials Transactions
IS - 11
ER -