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SINTERING BEHAVIOR OF Cu-Al ALLOY POWDER
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作者 TIAN Sugui SHAO Huimeng +3 位作者 ZHOU Longjiang LI Tiefan YANG Hongcai HAO Shiming(Shenyang Polytechnic University, China) (State Key Laboratory of Corrosion and Protection. Institute of Corrosion and Protection of Metals. Chinese Academy of Sciences, Shenyan 《Acta Metallurgica Sinica(English Letters)》 SCIE EI CAS CSCD 1995年第3期231-234,共4页
The dynamic behaviour of transient liquid phase during sintering 5wt% Al-Cu alloy compacts with green density of 7.56g/cn ̄3 is observed by means of high temperature metallographic microscopy. The structures and preci... The dynamic behaviour of transient liquid phase during sintering 5wt% Al-Cu alloy compacts with green density of 7.56g/cn ̄3 is observed by means of high temperature metallographic microscopy. The structures and precipitating order of the phases are identified by means of DTA, TEM and composion analysis at the definite point and phase diagram. The results show that little Al-rich liquid phase resulting from eutectic reaction flows into the capillaries in Cu powder, because the peritectic reactions exhausts the liquid in high density compact,the composition homogenization needs longer sintering time. The remainder γ2-phase is discovered at place of the neck of sintered Cu particle and has a crystallographic relationship of (111)_(Cu)∥(033)_γ_2 after alloy is sintered at 900 ℃for 3h. 展开更多
关键词 transient liquid phase sintering surface reaction diffusing Cu-Al alloy
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