Interfacial Microstructure of Al_2O_(3p)/2024Al Composite
The interfacial microstructure of Al2O3p / 2024Al composite prepared by extruding-casting was investigated by TEM and HRTEM. The results show that the Al2O3 particles in aluminum matrix are nearly spherical or ellipsoidal. Al2O3 reinforcements are well bonded with 2024Al matrix. The interface between the Al2O3 particles and the matrix is clean and reaction product is not observed. This interface belongs to direct bonding. The orientation relationships between Al2O3 particles and aluminum matrix are : Al2O3 (2)//Al() ; Al2O34//Al110.