Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow
Figure 4
Compressibility curves of (a) AR Al and powders milled in ammonia at 300 rpm for 1, 3, and 5 h and (b) powders milled at 500 rpm in vacuum for 5 h and in ammonia for 1, 3, and 5 h.