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Comparison of UCS to Bond Work Indices Comparison of UCS to Bond Work Indices Alex Doll,Alex G Doll Consulting Ltd,Edmonton,Canada Derek Barratt,DJB Consultants Inc,North Vancouver,Canada Ken Wood,Fluor Mining & Minerals,Vancouver,Canada Abstract Unconfined Compressive Strength (UCS) is a commonly used rockmass strength measurement used by Synthesis of Nanomaterials by High Energy Ball Milling 2019 9 17 · Synthesis of Nanomaterials by High Energy Ball Milling W.Cao.Skyspring Nanomaterials,Inc.[email protected] It is a ball milling process where a powder mixture placed in the ball mill is subjected to high energy collision from the balls.the geometry of the mill and the ratio of angular velocities of the planetary to the system. 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