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Citation: Lao Bang-Sheng, Gao Su, Zang Qi-Yun. Nonequilibrium Growth of Intermetallics at the Interface of Liquidsolid Metal[J]. Acta Physico-Chimica Sinica, ;2001, 17(05): 453-456. doi: 10.3866/PKU.WHXB20010515 shu

Nonequilibrium Growth of Intermetallics at the Interface of Liquidsolid Metal

1.
Department of Chemistry, Peking University, Beijing　100871

Received Date: 12 September 2000
Available Online: 15 May 2001

The growth characteristic of intermetallics during the reaction of solid (Cu,Ag,Au,Fe,Co,Ni,etc) with liquid (Sn,Sb,Bi,Zn) within a very short time of 1～2 s at different temperatures has been studied by metallographic method for explaining the process in the fillet during soldering. It is indicated that the incongruent compourds often grow up as bamboo shoot form. But congruent compounds grow up basically just by spreading out as a layer along the solid border. Base on these facts,the influence of intermetallics in the fillet during soldering has been discussed.
- Intermetallics;Interface reaction;Soldering
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