摘要
The surface tension of molten tin was determined by a set of self-developed digital equipment with sessile drop method at oxygen partial pressure of 1.0×10 -6MPa under different temperatures, and the dependence of surface tension of molten tin on temperature was also discussed. The emphasis was placed on the comparison of surface tension of the same molten tin sample measured by using different equipments with sessile drop method. Results of the comparison indicate that the measurement results with sessile drop method under the approximate experimental conditions are coincident, and the self-developed digital equipment for surface tension measurement has higher stability and accuracy. The relationships of surface tension of molten tin and its temperature coefficient with temperature and oxygen partial pressure were also elucidated from the thermodynamic equilibrium analysis.
The surface tension of molten tin was determined by a set ol sell-developed digital equipment with sessue drop method at oxygen partial pressure of 1.0 × 10^-6 MPa under different temperatures, and the dependence of surface tension of molten tin on temperature was also discussed. The emphasis was placed on the comparison of surface tension of the same molten tin sample measured by using different equipments with sessile drop method. Results of the comparison indicate that the measurement results with sessile drop method under the approximate experimental conditions are coincident, and the self-developed digital equipment for surface tension measurement has higher stability and accuracy. The relationships of surface tension of molten tin and its temperature coefficient with temperature and oxygen partial pressure were also elucidated from the thermodynamic equilibrium analysis.
出处
《中国有色金属学会会刊:英文版》
EI
CSCD
2005年第5期1166-1171,共6页
Transactions of Nonferrous Metals Society of China
基金
Project(50474043)supportedbytheNationalNaturalScienceFoundationofChina
关键词
锡
熔化工艺
界面结构
金属结构
金属物理学
molten tin
surface tension
sessile drop method
oxygen partial pressure
temperature coefficient