Sintering property of superfine Mo-Cu prepared by glycine-nirate process

The precursor powders were successfully prepared by GNP method with Ammonium molybdate((NH₄)₆Mo₇O₂₄·4H₂O), Cupric nitrate(Cu(NO₃)₂·3H₂O), Glycine and Ethylene diamine, followed by being reduced to Mo-Cu powders in H₂ at 700 ℃. The effects of sintering temperatures on the properties of Mo-Cu alloy were investigated. The results show that the nano-powders with the size of 50~80 nm could be prepared by GNP-H₂reduction method, and Mo phase and Cu phase well dispersed in each particle. With sintering temperatures ranging from 950 ℃ to 1250 ℃, the hardness increased and the relative density, electrical conductivity and thermal conductivity reached the maximum at 1150 ℃.