Use of Cenosphere for Making Metal-Microspheres Syntactic Foam through Powder Metallurgy Route

Abstract:

Cenospheres are very cheap, and are reasonably strong and thermally stable upto 1200°C. In view of this attempt has been made to use these cenosphere for making Titanium syntactic foams with varying relative densities. Precautions were taken for selecting cold compaction pressure to minimize cenosphere crushing. The sintered samples were then characterized in terms of microstructures primarily to see the extent of cenosphere crushing, distribution of cenosphere, and extent of sintering. The foams made using optimized pressure and sintering parameters, exhibits uniform distribution of cenosphere without any significant crushing. The plateau stress, energy absorption and modulus of these foams are varying with the cenosphere content or the relative density, and these parameters can be engineered by varying cenosphere content in the foam. These foams exhibit considerably higher strength and stiffness than the conventional foam and show the possibility of using them for biomedical and engineering applications.

• Periodical: Materials Science Forum (Volumes 830-831)
• Pages: 75-79
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.830-831.75
• Online since: September 2015
• Authors: D.P. Mondal*, R. Dasgupta, Ajay Kumar Barnwal, Shaily Pandey, Hemant Jain
• Keywords: Cenospheres, Energy Absorption, Plateau Stress, Relative Density, Titanium Syntactic Foam

References

[1] A. Bansiddhi, .D. Sargeant, S.I. Stupp, and D.C. Dunand, Porous NiTi for bone implants: A review, Acta Biomater.; 4(4) (2008) 773–782.

DOI: 10.1016/j.actbio.2008.02.009

[2] J.J. Ramsden, D.M. Allen, D.J. Stephenson, J.R. Alcock, G.N. Peggs , G. Fuller and G. Goch, The Design and Manufacture of Biomedical Surfaces, Cirp Annals-Manufacturing Technology, 6(2) (2007) 687-711.

DOI: 10.1016/j.cirp.2007.10.001

[3] Meenakshi Mour , Debarun Das 1, Thomas Winkler , Elisa Hoenig , Gabriela Mielke, Michael M. Morlock and Arndt F. Schilling , Advances in Porous Biomaterials for Dental and Orthopaedic Applications, Materials, 3 (2010) 2947-2974.

DOI: 10.3390/ma3052947

[4] D.P. Mondal , J. Datta Majumder , Nidhi Jha , Anshul Badkul , S. Das , Aruna Patel , Gaurav Gupta , Titanium-cenosphere syntactic foam made through powder metallurgy route, Materials and Design, 34 (2012) 82–89.

DOI: 10.1016/j.matdes.2011.07.055

[5] Amit Biswas, T. K. Maity, U. K. Chatterjee, I. Manna, Lin Li and J. Dutta Majumdar, Laser Surface Nitriding of Ti-6Al-4V for Bio-implant Application, Trends Biomater. Artif. Organs, 20(1) (2006) 68-71.