Nanocrystalline Al Composites from Powder Milled under Ammonia Gas Flow

Table 1

Phases present vol.% in sintered Al powders milled in an ammonia gas flow at 500 rpm for 1, 3, and 5 h (MA A 500-1 S, MA A 500-3 S, and MA A 500-5 S).

Phase	Material
	MA A 500-1 S	MA A 500-3 S	MA A 500-5 S
Aluminium (Al)	78.45	46.41	28.87
Aluminium nitride (AlN)	6.22	20.25	49.58
Aluminium oxynitride (Al5O6N)	15.33	33.33	21.55