Surface tension of binary Al–Si liquid alloys

Surface tension of binary Al–Si liquid alloys
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二元 AlâSi 液态合金的表面张力

DOI:
10.1007/s10853-015-8883-6
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发表时间:
2015
影响因子:
4.5
通讯作者:
P.-Y. Pichon
P.-Y. Pichon
中科院分区:
材料科学3区
文献类型:
--
作者:
H. Kobatake;J. Brillo;J. Schmitz;P.-Y. Pichon

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本文采用振荡滴法结合电磁悬浮的方法,系统地研究了纯液态Al、Si和液态Al-Si合金的表面张力。在测量之前,使用Y稳定的氧化锆氧传感器测量了燃烧室中的环境氧分压,以基于热力学评估来估计表面氧分压。在氧分压为10~(-1)帕的实验Ar气体下,可以得到纯Al和Si的氧还原面。然而,在相同的氧分压下,富铝合金的表面张力受氧吸附的影响很大。随着硅浓度的增加,合金的表面张力接近氧还原表面的值。
In the present study, the surface tensions of pure liquid Al, Si, and liquid Al–Si alloys were systematically investigated by means of the oscillating drop method in combination with electromagnetic levitation. Prior to the measurement, the ambient oxygen partial pressure in the chamber was measured using an yttrium-stabilized zirconia oxygen sensor to estimate the surface oxygen partial pressure based on the thermodynamic assesssment. Under the experimental Ar gas with oxygen partial pressure of 10–1Pa, the oxygen-reduced surfaces of pure liquid Al and Si can be obtained. However, the surface tensions of alloys in Al-rich composition are strongly affected by the oxygen adsorption under the same oxygen partial pressure. With the increasing Si concentration, the surface tension of the alloy approaches to the values of the oxygen-reduced surface.
DOI: 10.1016/0001-6160(82)90160-2
发表时间: 1982-01-01
期刊: ACTA METALLURGICA
影响因子: --
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