Abstract
Al-paste de-oiled by soap-suds or trichlor ethylene can be used as raw materials for S.A.P.. Al-paste de-oiled by soap-suds contain 4-5% Al2O3, and ones de-oiled by trichlor ethylene contain about 1% Al2O3. Al2O3 content of de-oiled Al-pastes can de adjusted by soaking in water for moderate duration.
Aluminium powders made from Al-paste are compacted and sintered. Physical and mechanical properties of material increase with the rise of sintering temperature and the prolongation of sintering time. And, the longer the hot-pressing time, the better the properties of material.
By "composite powder method", aluminium powders are coated by copper. Effects of copper on the properties of S.A.P. are examined by using-Cu-coated Al-powders.
