Al2O3 reinforced NiAl composites can show better mechanical properties than monolithic NiAl. For enhancing the properties of NiAl/Al2O3 composites NiAl powders were oxidized and/or ball milled to form Al2O3 into NiAl matrix. The as-received and oxidized/ball milled NiAl powders were studied to determine the effects of oxidation and ball milling. Al2O3 particles are dispersed in the grain boundaries and within the NiAl grains of hot-pressed NiAl/A2O3 composites. As the milling time and the oxidation temperature of NiAl powder increased, α- Al2O 3 contents increase, and fracture mode of the composite transforms from intergranular to transgranular cleavage which accounts for the enhancement of mechanical properties of NiAl/Al2O3 composites.
|頁（從 - 到）||223-226|
|期刊||Key Engineering Materials|
|出版狀態||Published - 2003 1月 1|
|事件||Composite Materials III: Proceedings of the 3rd China Cross-Strait Conference on Composite Materials - Wuhan, China|
持續時間: 2003 5月 7 → 2003 5月 12
All Science Journal Classification (ASJC) codes