用卧滴法测定了纯度均为99.999％的Cu,Sn及其合金的表面张力,Cu和Sn表面张力的温度系数分别为-0.38和-0.071×10~(-3)N·m~(-1)·K~(-1)。 在实验温度范围内,Cu-37％Sn合金的表面张力随温度升高而增加。这种异常现象,可能是由于液态合金中存在与γ相有联系的原子团。
The surface tension of Cu-Sn alloy was determined by the sessile drop method. The anomalous temperature dependence on the surface tension of Cu-37％ Sn alloy in the testing range is perhaps due to the atomic cluster relating to γ-phase in the liquid alloy.
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