In Vitro Bioactivity of a Biocomposite Fabricated from Ti and Mg Powders by Powder Metallurgy Method

Abstract:

This study sought to create a biocomposite of Magnesium and Titanium via a powder metallurgy technique. Powder metallurgy technique was used to produce three different volume percentages of Magnesium (30% , 35% , 40%). Titanium powder was mixed with Magnesium, then the samples were compressed by 1800 Bar using a cold, isostatic press process. The samples were then sintered to 850 for 100 min. At this temperature, the compressive yield strength was increased to 210 Mpa and significantly depended on the volume percent of Magnesium present, the core size and temperature of sintering. The bioactivity of the samples in a simulated body fluid (SBF) was also investigated. When the samples were immersed in the simulated body fluid for a 14 and 28 days, calcium and other elements were found to be deposited on the surface. Additionally, it was found that TiO2 has the ability to induce the formation of bone-like apatite in the SBF. In addition, the degradation product of Magnesium in a biological system caused a rise in the pH and environment for the deposition of calcium and other element on the surface were enhanced. Finally, the samples were analyzed using XRD, EDS, and optical and scanning electron microscopy (SEM).

• Periodical: Advanced Materials Research (Volumes 415-417)
• Pages: 1176-1180
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.415-417.1176
• Online since: December 2011
• Authors: Ehsan Sharifi Sede, Shamsedin Mirdamadi, Hossein Arabi
• Keywords: Bioactivity, Biocomposite, Magnesium, Powder metallurgy, Titanium

References

[1] M.M. Dewidar, H.C. Yoon, J.K. Lim, Met. Mater. 12 (2006) 193.

[2] Xin Y, "In vitro studies of magnesium alloys in simulated physiological environment",Acta Biomaterialia, (2010)

[3] Yeo heung Yun, "Revolutionizing biodegradable metals", Materials today J,2009,V12.10

[4] Frank Witte,"Degradable biomaterials based on magnesium corrosion",current opinion in solid state and material science12,2008,63-72

[5] Frank Witte,"Degradable biomaterials based on magnesium corrosion",current opinion in soid state and material science12,2008,63-72

[6] Zhang Shaoxiang,"Research on anMg-Zn as a degradable biomaterial",Ata Biomaterialia ,6,2010,626-640

[7] Ohtsuki C, Kokubo T, Yamamuro T. Mechanism of apatite formation on CaO–SiO2–P2O5 glasses in a simulated body fluid. J Non-Cryst Solids 1992;143:84–92.

DOI: 10.1016/s0022-3093(05)80556-3

[8] C.Q. Ning, Y. Zhou. In vitro bioactivity of a biocomposite fabricated from HA and Ti powders by powder metallurgy method, Biomaterials 23 (2002) 2909–2915

DOI: 10.1016/s0142-9612(01)00419-7

[9] Wen, CE, Mabuchi M, Yamada Y, Shimojima K, Chino Y, Asahina T. Processing of biocompatible porous Ti and Mg. Scripta Materialia. 2001; 45(10):1147-1153.

DOI: 10.1016/s1359-6462(01)01132-0

[10] Takemoto M, Fujibayashi S, Neo M, Suzuki J, Kokubo T, Nakamura T. Mechanical properties and osteoconductivity of porous bioactive titanium. Biomaterials. 2005; 26(30):6014-6023.

DOI: 10.1016/j.biomaterials.2005.03.019

[11] Vasconcellos LMR, Momose DR, Brentel AS, Oliveira MV, Carvalho YR, Cairo CAA. Surgical technique to place porous surface dental implants. Acta Microscopic. 2003; 12(suplC):

[12] Garcia Barriocanal J, Pérez P, Garcéz G, Adeva P. Microstructure and mechanical properties of Ni3Al base alloy reinforced with Cr particles produced by powder metallurgy. Intermetallics. 2006; 14:456-463.

DOI: 10.1016/j.intermet.2005.08.008

[13] Bram M, Stiller C, Buchkremer PH, Stöver D, Baur H. High-porosity titanium, stainless steel, and superflloy parts. Adv Eng Mater. 2000; 2:196-199.

DOI: 10.1002/(sici)1527-2648(200004)2:4<196::aid-adem196>3.0.co;2-k

[14] S. Takuji, K. Masayoshi, W. Takashi, Nippon Steel Tech. Rep. 46 (1990) 35.

[15] W.D. Brewer, R.K. Bird, T.A. Wallace, Mater. Sci. Eng. A 243 (1998) 299.

[16] I. Philippart, H.J. Rack, Mater. Sci. Eng. A 243 (1998) 196.

[17] T. Fujita, A. Agawa, C. Ouchi, H. Tajima, Mater. Sci. Eng., A 213 (1996) 148.

[18] T Saito, United States Patent, no. 6117204, 12 September 2000.

[19] H.P. Tang, Y. Liu, W.F. Wei, L.F. Chen, Chin. J. Nonferrous Met. 14(2004) 244.

[20] J. Koike, Y. Shimoyama, H. Fujii, K. Maruyama, Scripta Mater. 39 (1998) 1009.

[21] T. Saito, H. Takamiya, T. Furuta, Mater. Sci. Eng. A 243 (1998) 273.

[22] W.F. Wei, Y. Liu, H.P. Tang, B.Y. Huang, Powder Metall. 46 (2003) 246.

[23] J.L. Murray, Monograph Series on Alloy Phase Diagrams: Phase Diagrams Of Binary Titanium Alloys, ASM International, Metal Park, Ohio, 1987.

[24] Y. Liu, W.F. Wei, K.C. Zhou, B.Y. Huang, J. Central South Univ. Technol. 10 (2003) 81.

[25] Y. Liu, B.Y. Huang, Y.H. He, K.C. Zhou, Trans. Nonferrous Met. Soc. China 10 (2000) 453.