SURFACE-TENSION AND ADSORPTION IN LIQUID-TIN OXYGEN SYSTEM

被引：20
|
作者：
TAIMATSU, H [1 ]
SANGIORGI, R [1 ]
机构：
[1] CNR,IST CHIM FIS APPL MAT,I-16141 GENOA,ITALY
来源：
SURFACE SCIENCE | 1992年 / 261卷 / 1-3期
关键词：
D O I：
10.1016/0039-6028(92)90248-5
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The temperature dependence of the surface tension of liquid tin in the temperature range of 873 to 1373 K and the surface tension of liquid tin-oxygen alloys at 1073 and 1273 K have been measured by the sessile drop method. The surface tension of liquid tin is $70-0.108(T - T(m)) mNm-1 in an Ar-3%H2 mixture. Oxygen is surface-active in liquid tin, and the excess surface concentration of oxygen is 6.9 x 10(-7) mol m 2 at 1073 K and 2.4 x 10(-7) mol m-2 at 1273 K. The surface tension of tin completely free from oxygen has been estimated from its dependence on the oxygen partial pressure; its value is in agreement with the one obtained for an ultraclean surface.
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收藏
页码：375 / 381
页数：7
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