Estimation of Surface Tension of Molten Silicon Using a Dynamic Hanging Drop
Estimation of Surface Tension of Molten Silicon Using a Dynamic Hanging Drop
复制标题
使用动态悬滴估算熔融硅的表面张力
DOI：
10.1143/jjap.34.l631
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发表时间：
1995
影响因子：
1.5
通讯作者：
Shigeyuki Kimura Shigeyuki Kimura
中科院分区：
文献类型：
--
作者：
Sang;K. Izunome;A. Yokotani;Shigeyuki Kimura Shigeyuki Kimura
提出了一种利用悬滴旋转测定高温液体表面张力的新方法。通过观察悬挂在SiC涂层碳棒上的硅液滴的振荡来测量硅熔体的表面张力。液滴的振荡由高于570 rpm的突然高转速引起。熔融硅在1415° C的熔点下的表面张力估计为0.819 N/m，其温度系数为-0.308 10 -3 N/mK。结果表明，动态悬滴法可用于高温液体表面张力的测量。
A new method to determine the surface tension of high-temperature liquids was developed using the rotation of a hanging drop. The measurement of surface tension of silicon melt was performed by observing the oscillation of a silicon droplet hanging from a SiC-coated carbon rod. The oscillation of the liquid drop was induced by a sudden high rotation speed above 570 rpm. The surface tension of molten silicon was estimated as 0.819 N/m at the melting point of 1415° C and its temperature coefficient was -0.308×10-3 N/mK. We concluded that the dynamic hanging drop method could be used to measure the surface tension of high-temperature liquids.