| The quickly development of space navigation, aviation, advanced weapons and integrate circuit has greatly raised the requirements to the materials. Traditional single-phase materials can't meet those requirements. However, particle reinforced aluminum matrix composites have the possibility to meet those requirements because of their low density, high specific strength, high specific modulus, good property design ability and so on.Although particle reinforced aluminum matrix composites have those excellent properties, they also have some problems, such as bad molding ability and bad machining ability, which have blocked them badly in the real application. First, during their fabrication and molding, the big particles are prone to deposit and the fine particles are prone to reunite, which makes it difficult to get homogeneous composites. Secondly, because the particles'serious wear to the cutter, the composites are mostly difficult to be machined, which makes it impossible to be applied although we may fabricate good property composites.The purpose of this project is to develop a new particle reinforced metal... |
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