Mostafapour, A., Khandani, S. T. (2012). 'Fabrication of Al/Graphite/Al2O3 Surface Hybrid Nano Composite by Friction Stir Processing and Investigating The Wear and Microstructural Properties of The Composite', Journal of Ultrafine Grained and Nanostructured Materials, 45(1), pp. 47-52. doi: 10.7508/jufgnsm.2012.01.009