Surface modification by alkali and heat treatments in titanium alloys

Wiley - Tập 61 Số 3 - Trang 466-473 - 2002
Baekhee Lee1, Young Do Kim1, Ji Hoon Shin2, Kyu Hwan Lee2
1Division of Materials Science and Engineering, Hanyang University, Seoul 133‐791, Korea
2Future Technology Research Division, Korea Institute of Science and Technology, Seoul 136‐791, Korea

Tóm tắt

AbstractPure titanium and titanium alloys are normally used for orthopedic and dental prostheses. Nevertheless, their chemical, biological, and mechanical properties still can be improved by the development of new preparation technologies. This has been the limiting factor for these metals to show low affinity to living bone. The purpose of this study is to improve the bone‐bonding ability between titanium alloys and living bone through a chemically activated process and a thermally activated one. Two kinds of titanium alloys, a newly designed Ti‐In‐Nb‐Ta alloy and a commercially available Ti‐6Al‐4V ELI alloy, were used in this study. In this study, surface modification of the titanium alloys by alkali and heat treatments (AHT), alkali treated in 5.0M NaOH solution, and heat treated in vacuum furnace at 600°C, is reported. After AHT, the effects of the AHT on the bone integration property were evaluated in vitro. Surface morphologies of AHT were observed by optical microscopy (OM) and scanning electron microscopy (SEM). Chemical compositional surface changes were investigated by X‐ray diffractometry (XRD), energy dispersive spectroscopy (EDS), and auger electron spectroscopy (AES). Titanium alloys with surface modification by AHT showed improved bioactive behavior, and the Ti‐In‐Nb‐Ta alloy had better bioactivity than the Ti‐6Al‐4V ELI alloy in vitro. © 2002 Wiley Periodicals, Inc. J Biomed Biomater Res 61: 466–473, 2002

Từ khóa


Tài liệu tham khảo

Donachie M, 1998, Biomedical alloys, Adv Mater Processes, 63

10.1007/s11837-998-0064-5

Choi SH, 1999, A study on the mechanical and corrosion properties in Ti‐In alloy, Biomater Res, 3, 83

10.1016/B978-012582460-6/50002-5

10.1016/0167-577X(95)00082-8

10.1016/S0924-0136(99)00062-X

10.1016/0257-8972(95)02463-8

Davidson JA, 1994, New surface‐hardened, low‐modules, corrosion‐resistant Ti‐13Nb‐13Zr alloy for total hip arthroplasty, Bio‐Med Mater Eng, 4, 231, 10.3233/BME-1994-4310

10.1002/jbm.820251204

10.1007/BF00121092

10.1016/0142-9612(96)00009-9

10.1002/(SICI)1097-4636(199704)35:1<39::AID-JBM5>3.0.CO;2-N

10.1002/jbm.820271205

10.1002/(SICI)1097-4636(199611)32:3<409::AID-JBM14>3.0.CO;2-B

10.1016/S0142-9612(97)82297-1

Wen HB, Preparation of bioactive microporous titanium surface by two‐step chemical treatment, J Mater Sci Mater Med, 9, 121, 10.1023/A:1008859417664

Kim TI, 1997, New titanium alloys for biomaterials: A study of mechanical and corrosion properties and cytotoxicity, Bio‐Med Mater Eng, 7, 253, 10.3233/BME-1997-7404

Fontana MG, 1987, Corrosion engineering

10.1002/(SICI)1097-4636(199905)45:2<100::AID-JBM4>3.0.CO;2-0

10.1111/j.1151-2916.1996.tb08561.x

10.1023/A:1018524731409

10.1016/S0142-9612(98)90203-4

10.1002/jbm.820240607

Behrens D, 1998

10.1016/S0142-9612(00)00174-5

10.1016/S0924-0136(99)00061-8

Thông tin
Thông tin xuất bản

Wiley

Tập 61 Số 3

466-473

Thông tin tác giả