ABSTRACT Pure and 10 wt% 80Al2O3-20TiO2 reinforced hydroxyapatite coatings were successfully deposited on Ti6Al4V substrate by plasma spray technique for bio medical applications. Post coating heat treatment was carried out to study the effect of heat treatment on improvement in micro structure and mechanical properties of coatings. Coating was characterized by SEM/EDAX and XRD analysis. Positive impact of post coating heat treatment was observed in microstructure, surface roughness and micro hardness of both coatings.
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G. Singh, S. Singh and S. Prakash, "Role of Post Heat Treatment of Plasma Sprayed Pure and Al2O3-TiO2 Reinforced Hydroxyapatite Coating on the Microstructure and Mechanical Properties," Journal of Minerals and Materials Characterization and Engineering, Vol. 9 No. 12, 2010, pp. 1059-1069. doi: 10.4236/jmmce.2010.912076.
 M.F. Morks, Akira Kobayashi, 2007, “Effect of gun current on the microstructure and
crystallinity of plasma sprayed Hydroxyapatite coating”, Appl. Surf. Sci. Vol. 253, pp. 7136-7142.
X.Nie, A. Leyland, A.Matthews, 2000, “Deposition of layered bioceramic hydroxyapatite /TiO2 coatings on titanium alloys using a hybrid technique of micro-arc oxidation and electrophoresis”, Surface and Coatings Technology, Vol.125, pp. 407–414.
M.F Morks, Akira Kobayashi, 2006, “Influence of gas flow rate on the microstructure and mechanical properties of hydroxyapatite coatings fabricated by gas tunnel type plasma spraying, Surface and Coatings Technology”, Vol. 201, pp. 2560-2566.
C.S. Kim, P. Ducheyne ,1991, “Compositional variations in the surface and interface of calcium phosphate ceramic coatings on Ti and Ti-6Al-4V due to sintering and immersion”, Biomaterials, Volume 12, Issue 5, pp. 461-469.
Kantesh Balani, Yao Chen, Sandip P. Harimkar, Narendra B. Dahotre, Arvind Agarwal, 2007,“Tribological behavior of plasma-sprayed carbon nanotube-reinforced hydroxyapatite coating in physiological solution”, Acta Biomaterialia ,Vol. 3,pp. 944–951.
Yu-Peng-Lu, Gui-Yong-Xiao, Shi-Tong-Li, Rui-Xue-Sun, Mu-Sen-Li, 2006,
“Microstructural inhomogeneity in plasma-sprayed hydroxyapatite coatings and effect of post-heat treatment”, Applied Surface Science, Vol. 252,pp. 2412-2421.
W.F. Morris, 1998, “Hydroxyapatite-coated implants: a case for their use”, J. Oral
Maxillofac. Surg., Vol. 56 (II), pp. 1303–1311.
T. Albrektsson, 1998, “Hydroxyapatite-coated implants: a case against their use”, J. Oral Maxillofac. Surg., Vol. 56 (II), pp. 1312–1326.
Hu H., Ni Y., Montana V., Haddon R.C., Parpura V., 2004, “Chemically functionalized carbon nanotubes as substrate for neuronal growth”, Nano Lett, Vol.4(3),pp. 507–511.
Fang L., Leng Y, Gao P., 2006, “Processing and mechanical properties of nano-composite”, Biomaterials, Vol. 37, pp. 3701–3707.
L. Fu, K.A. Khor, J.P. Lim, 2001, “Processing, microstructure and mechanical properties of yttria stabilized zirconia reinforced hydroxyapatite coatings”, Materials Science and Engineering A, Vol.316, pp. 46–51.
M.F. Morks, 2008, “Fabrication and charectrization of plasma –sprayed HA/SiO2 coatings for biomedical application”, Journal of the mechanical Behaviour of Biomedical Materials, Vol.1, pp. 105-111.
Jorge E. Tercero, Shabnam Namin, Debrupa Lahiri, Kantesh Balani, Nikolaos Tsoukias, Arvind Agarwal,2009, “Effect of carbon nanotube and aluminum oxide addition on plasmasprayed hydroxyapatite coating's mechanical properties and biocompatibility”, Materials Science and Engineering C, Vol. 29,pp. 2195–2202.
Huaxia Ji, P.M.Marquis, 1993, “Effect of heat treatment on the microstructure of plasmasprayed hydroxyapatite coating” Biomaterials, Vol. 14,No. 1,pp.64-68.
Yu Peng Lu , Yi Zhong Song, Rui Fu Zhu, Mu Sen Li, Ting Quan Lei, 2003, “ Factors influencing phase compositions and structure of plasma sprayed hydroxyapatite coatings during heat treatment” Applied Surface Science,Vol.206,pp. 345-354.
Shinn-jyh Ding, Tsui-hsien Huang, Chia-tze Kao, 2002, “Immersion behavior of plasma sprayed modified hydroxyapatite coatings after heat treatment”, Surface and Coatings Technology, Vol. 165, pp. 248-257.
Zhao Guo-liang, Wen Guang-wu, Wu Kun, 2009, “Influence of processing parameters and heat treatment on phase composition and microstructure of plasma sprayed hydroxyapatite coatings”, Trans. Nonferrous Met. Soc. China, vol.19, pp. 463- 469.
H. Li, K.A. Khor, P. Cheang, 2002, “ Properties of heat treated calcium phosphate coatings deposited by high velocity oxy fuel (HVOF) spray”, Biomaterials,Vol.23,pp. 2105-2112.
L. Chou, B. Marek, W.R. Wanger, 1999, “Effect of hydroxyapatite coating crystallinity on biosolubility, cell attachment efficiency and proliferation in vitro, Biomaterials, Vol. 20,pp. 977-985.
Y.P. Lu, S.T.Li, R.F.Zhu, M.S.Li, T.Q.Lei, 2002, “Recrrystallinzation and structure of
plasma sprayed hydroxyapatite coating”, Chin. J. Inorg. Chem.Vol. 18,pp. 844-848.
Wenxiu Que, K.A. Khor, J.L. Xu, L.G. Yu, 2008, “Hydroxyapatite/titania nanocomposites derived by combining high-energy ball milling with spark plasma sintering processe”, Eur. Ceram. Soc.,Vol.28,pp.3083-3090.
A. Balamurugan, G. Balossier, S. Kannan,S. Rajeswari, 2006, “Elaboration of sol–gel
derived apatite films on surgical grade stainless steel for biomedical applications”, Mater. Lett.Vol. 60, pp. 2288–2293.
Mi Hee Lee, Dong Wook Han, Hyun Sook Baek, Hye Ryun Lim, In Seop Lee, Kwon Yong Lee, Kyung Tae Kim, Seung Jin Lee, Jong Chul Park,2007, “Differential cytokine responses of murine macrophage J774A.1 cells to stainless steel coated with and without hydroxyapatite”, Surf.Coat.Technol. Vol. 201, pp. 5729–5732.