Electrochemical behavior of Calcium Titanate Coated Ti-6Al-4V Substrate in Artificial Saliva

Byoung Cheon Lee; A. Balakrishnan; Myung Won Ko; Je Woo Choi; Joong Keun Park; Taik Nam Kim

Korean Journal of Materials Research, Vol.18, No.1, 22-25, January, 2008

DOI10.3740/MRSK.2008.18.12.022 Export Citation

Electrochemical behavior of Calcium Titanate Coated Ti-6Al-4V Substrate in Artificial Saliva

Byoung Cheon Lee, A. Balakrishnan, Myung Won Ko, Je Woo Choi, Joong Keun Park¹, and Taik Nam Kim^†

Department of Materials Engineering, Paichai University, Daejeon, Korea 302-735
¹Department of Materials Science & Engineering, KAIST, Korea

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In this study, calcium titanate (CaTiO3) gel was prepared by mixing calcium nitrate and titanium isopropoxide in 2-methoxy-ethanol. CaTiO3 gel was single-layer coated on Ti-6Al-4V using a sol-gel dip-coating technique. The coating was calcined at 750oC in air by utilizing a very slow heating rate of 2oC/min. The crystalline phases of the coating were characterized by x-ray diffraction using a slow scan rate of 1o/min. The morphology of the coating was analyzed by scanning electron microscopy. The corrosion behavior of Ti-6Al-4V samples coated with CaTiO3 films were tested in an artificial saliva solution by potentiodynamic polarization and were quantified by the Tafel extrapolation method. The electrochemical parameters showed a considerable increase in the corrosion resistance for the CaTiO3-coated Ti-6Al-4V samples compared to bare substrates.

Keywords:CaTiO3;Ti-6Al-4V;artificial saliva;corrosion resistance

[References]

Hench LL, J. Am. Ceram. Soc., 74(7), 1485 (1991)
Hutmacher DW, Biomaterials, 21(24), 2529 (2000)
Niinomi M, Biomaterials, 24(16), 2673 (2003)
Long M, Rack HJ, Biomaterials, 19, 1621 (1998)
Brunette DM, Tengvall P, Textor M, Thomsen P, Titanium in medicine, p. 171 Springer-Verlag, Berlin- Heidelberg, New York (2001). (2001)
Schutz RW,Thomas DE, Corrosion of titanium and titanium alloys: In Metals Handbook, vol. 13, 9th ed., p. 669, American Society for Metal (ASM) International, Metals Park, Ohio, (1987). (1987)
Zheng CY, Li SJ, Tao XJ, Hao YL, Yang R, Zhang L, Mater. Sci. Eng. C., 27, 824 (2007)
Wiff JP, Fuenzalida VM, Arias JL, Fernandez MS, Mater. Lett., 61(13), 2739 (2006)
Holliday S, Stanishevsky A, Surf. Coat. Tech., 188-189, 741 (2004)
Raman V, Tamilselvi S, Nanjundan S, Rajendran N, Trends Biomater. Artif. Organs, 18(2), 137 (2005)
Ailor WH, J. Electrochem. Soc., 120, 50C (1973)
Krivian L, Br. Corros. J., 26(3), 191 (1991)
Lausmaa J, Kasemo B, Mattsson H, Appl. Surf. Sci., 44(2), 133 (1990)
Hanawa T, Ota M, Biomaterials, 12(8), 767 (1991)
Meachim G, Williams DF, J. Biomed. Mater. Res., 7(6), 555 (1973)
Solar RJ, Pollack SR, Korostoff E, J. Biomed. Mater. Res., 13(2), 217 (1979)

[1] Hench LL, J. Am. Ceram. Soc., 74(7), 1485 (1991)

[2] Hutmacher DW, Biomaterials, 21(24), 2529 (2000)

[3] Niinomi M, Biomaterials, 24(16), 2673 (2003)

[4] Long M, Rack HJ, Biomaterials, 19, 1621 (1998)

[5] Brunette DM, Tengvall P, Textor M, Thomsen P, Titanium in medicine, p. 171 Springer-Verlag, Berlin- Heidelberg, New York (2001). (2001)

[6] Schutz RW,Thomas DE, Corrosion of titanium and titanium alloys: In Metals Handbook, vol. 13, 9th ed., p. 669, American Society for Metal (ASM) International, Metals Park, Ohio, (1987). (1987)

[7] Zheng CY, Li SJ, Tao XJ, Hao YL, Yang R, Zhang L, Mater. Sci. Eng. C., 27, 824 (2007)

[8] Wiff JP, Fuenzalida VM, Arias JL, Fernandez MS, Mater. Lett., 61(13), 2739 (2006)

[9] Holliday S, Stanishevsky A, Surf. Coat. Tech., 188-189, 741 (2004)

[10] Raman V, Tamilselvi S, Nanjundan S, Rajendran N, Trends Biomater. Artif. Organs, 18(2), 137 (2005)

[11] Ailor WH, J. Electrochem. Soc., 120, 50C (1973)

[12] Krivian L, Br. Corros. J., 26(3), 191 (1991)

[13] Lausmaa J, Kasemo B, Mattsson H, Appl. Surf. Sci., 44(2), 133 (1990)

[14] Hanawa T, Ota M, Biomaterials, 12(8), 767 (1991)

[15] Meachim G, Williams DF, J. Biomed. Mater. Res., 7(6), 555 (1973)

[16] Solar RJ, Pollack SR, Korostoff E, J. Biomed. Mater. Res., 13(2), 217 (1979)