在镀镍液中加入少量的Ca(NO3)2、NH4H2PO4, 在钛基体上实现在电沉积过程中羟基磷灰石(HA)和Ni的共沉积,实验探讨了电流密度、钙、磷浓度对涂层表面形貌、HA含量及涂层结合强度的影响.实验结果表明:涂层中HA的含量随电流密度和钙、磷浓度的增加而提高,但涂层结合强度先增大后减小,Ni-HA复合涂层的结合强度明显高于纯HA涂层的结合强度.通过控制适当的电沉积条件,在[Ca2+]=0.01 mol/L,电流密度jc=20～30 mA/cm2时,可以制得HA分散较为均匀、结合强度较高的Ni-HA复合涂层.
参考文献
| [1] | Jarcho M;Bolen C H;Thomas M B.Hydroxyapatite synthesis and characterisation in dense polycrystalline form[J].Journal of Materials Science,1976(11):2027-2035. |
| [2] | Olaf GraBmann;Robert B.Heimann .Compositional and Microstructural Changes of Engineered Plasma-Sprayed Hydroxyapatite Coatings on Ti6Al4V Substrates during Incubation in Protein-Free Simulated Body Fluid[J].Journal of biomedical materials research, Part B. Applied biomaterials,2000(6):685-693. |
| [3] | Pham MT.;Reuther H.;Richter E.;Steiner G.;Oswald S.;Matz W. .Surface sensitivity of ion implanted titanium to hydroxyapatite formation[J].Journal of Materials Science Letters,2000(5):443-445. |
| [4] | Cleries L;Fernandez Pradas-JM;Morenza JL .Bone growth on and resorption of calcium phosphate coatings obtained by pulsed laser deposition.[J].Journal of biomedical materials research, Part B. Applied biomaterials,2000(1):43-52. |
| [5] | Shirkhanzadeh M.Bioactive calcium phosphate coatings prepared by electrodeposition[J].Journal of Materials Science Letters,1991(10):1415-1417. |
| [6] | Stoch A.;Kmita G.;Stoch J.;Jastrzebski W.;Rakowska A.;Brozek A. .Electrophoretic coating of hydroxyapatite on titanium implants[J].Journal of Molecular Structure,2001(Special Issue SI):191-200. |
| [7] | Kumar M;Dasarathy H;Riley C .Electrodeposition of brushite coatings and their transformation to hydroxyapatite in aqueous solutions.[J].Journal of biomedical materials research, Part B. Applied biomaterials,1999(4):302-310. |
| [8] | Shirkhanzadeh M.Electrochemical preparation of bioactive calcium phosphate coating on porous substrates by the periodic pulse technique[J].Journal of Materials Science Letters,1993(12):16-19. |
| [9] | Shirkhanzadeh M.XRD and XPS characterization of superplastic TiO2coatings prepared on Ti6Al4V surgical alloy by an electrochemical method[J].Journal of Materials Science:Materials in Medicine,1995(06):206-210. |
| [10] | Kumar RR.;Maruno S. .Functionally graded coatings of HA-G-Ti composites and their in vivo studies[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2002(1/2):156-162. |
| [11] | Ohmae H;Okazaki M;Hino T.Encyclopedia of Materials Science and Engineering[M].Oxford:Pergamon Press,1986:475. |
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