['Microhardness', 'and', 'compressive', 'tests', 'were', 'carried', 'out', 'on', 'the', 'consolidated', 'near', 'full', 'density', 'specimens', 'of', 'both', 'unmilled', 'and', 'milled', 'powders', 'and', 'the', 'results', 'showed', 'significant', 'increase', 'in', 'both', 'hardness', 'and', 'compressive', 'strengths', 'for', 'the', 'milled', 'nanocrystalline', 'powders', 'as', 'a', 'result', 'of', 'the', 'very', 'fine', 'grain', 'size', '.']