ESTIMATION OF SURFACE-TENSION OF MOLTEN SILICON USING A DYNAMIC HANGING DROP

被引：14

作者：

CHUNG, SI ^{[1
]}

IZUNOME, K ^{[1
]}

YOKOTANI, A ^{[1
]}

KIMURA, S ^{[1
]}

机构：

[1] MIYAZAKI UNIV,DEPT ELECT & ELECTR ENGN,MIYAZAKI 88921,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1995年 / 34卷 / 5B期

关键词：

SILICON; SURFACE TENSION; SHAPE OSCILLATION; ROTATION; DYNAMIC HANGING DROP;

D O I：

10.1143/JJAP.34.L631

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 degrees C and its temperature coefficient was -0.308 x 10(-3) N/mK. We concluded that the dynamic hanging drop method could be used to measure the surface tension of high-temperature liquids.

引用

页码：L631 / L634

页数：4

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