摘要
为了研究重力对润湿过程的影响,设计了2组润湿实验方案,即Zr41.2Ti13.8Cu12.5Ni10.0Be22.5合金熔体在SiC基片上方和Zr41.2Ti13.8Cu12.5Ni10.0Be22.5合金熔体在SiC基片下方。结果表明:当合金熔滴在SiC基片下方时,在重力的作用下,熔滴的高度随温度的升高先增大后减小;合金熔滴在SiC基片上方时,熔滴的高度只是随温度的升高而减小。无论是在连续升温情况下还是在等温润湿过程中,Zr41.2Ti13.8Cu12.5Ni10.0Be22.5合金熔体在SiC基片上方时的润湿角都要更小一些。说明在地面重力场环境中,熔滴与基片的不同空间方位对液态Zr41.2Ti13.8Cu12.5Ni10.0Be22.5合金与固态SiC基片之间的润湿角有很大影响。
In order to study the effect of gravity on wettability, two wetting experiments were designed： liquid Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 alloy drop on SiC substrate; liquid Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 alloy drop under SiC substrate. The results showed that when the alloy drop was under SiC substrate, with the increase of the temperature the height of alloy drop increased because of the gravity at first and then decreased. But when the alloy drop was on SiC substrate, with the increase of the temperature the height of alloy drop decree-ased all the time. The wetting angles was less when the Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 alloy was on the SiC substrate whether during continuous heating or holding at different tempe-ratures. It is proved that different positions between Zr41.2Ti13.8Cu12.5Ni10.0Be22.5 alloy and solid substrates had a great effect on wetting angles in gravity environment.
出处
《表面技术》
EI
CAS
CSCD
北大核心
2009年第2期4-6,16,共4页
Surface Technology
基金
国家自然科学基金资助项目(50471077)
国家科学技术部资助项目(2006CB605201)
