Mechanical Milling a Top Down Approach for the Synthesis · Ball milling of graphite was carried out in attritor ball mill at room temperature in hexane medium for different times 24 48 and The self coagulated carbon agglomerates were obtained in the case of 24 and BMC samples The formation of coiled nanotubes and nanofibres were observed in the BMC sample The BMC samples with and without nickel Ni catalyst were subjected to hydrogenation