INFLUENCE OF Sr AND Sb ON SOLIDIFICATION OF Al-Si ALLOYS.

被引：0
|
作者：
Wang, Yucong [1 ]
Huang, Liangyu [1 ]
Zhai, Chunquan [1 ]
Ding, Wenjiang [1 ]
机构：
[1] Shanghai Jiaotong Univ, china, Shanghai Jiaotong Univ, china
来源：
Jinshu Xuebao/Acta Metallurgica Sinica | 1987年 / 23卷 / 06期
关键词：
DIFFERENTIAL THERMAL ANALYSIS;
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摘要：
The influence of Sr and Sb on solidification was investigated by differential thermal analysis (DTA). The contact angles beween the melt and silicon substrates were measured and the interfacial energies were calculated. Sr and Sb in the melt raised the eutectic nucleation temperature and retarded the eutectic crystallization. Sr and Sb in the melt had no thermodynamic tendency to absorb on silicon crystals, which is contrary to the traditional point of view. Sr and Sb might accumulate on silicon crystals and affect the growth of eutectics because of the partition coefficients were less than 1.
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