INTERACTION BETWEEN Cu AND LIQUID Sn(II)——SEM OBSERVATION OF INTERMETALLIC GROWTH

The features of Cu_6Sn_5 growing slowly at lower temperature and growing rapidly up over350℃,and or Cu_3Sn growing at higher temperatures,bave been detailedly observedunder SEM.The increase of Pb content seems to inhibit sequentially the growth ofCu_6Sn_5 in Pb-Sn alloy.