Structure study of Al+Al₂O₃ composite by atomic force microscopy

Abstract

The structure of a metal matrix composite based on aluminum containing 6, 17 and 24 wt % Al2 O3 was studied by atomic force microscopy. The composite was prepared by the method of magneticpulse compaction from aluminum nanopowder obtained by the electric wire explosion method. The samples compacted at 400 ◦ C have more clearly expressed grain boundaries than those obtained at room temperature. The structure of a composite subjected to dynamic plastic deformation is studied.

Keywords

• metal matrix composite
• scanning probe microscope
• atomic force microscopy
• electric wire explosion
• magnetic pulse compaction
• dynamic plastic deformation