摘要
从力学上分析了国内在推导、应用杨氏 ( Young T)方程过程中的诸多疑点 ,指出用力的概念推导杨氏方程有许多不便之处 ,最好用能的概念 ,并以水中球状固体颗粒与气泡的三相体系为例 ,应用能的概念 ,推导且得出了表面自由能在粘附过程中减少值 -ΔG的数学表达式 .
Several questionable points in derivation and use of Young's equation at home are analyzed with mechanics.It is pointed out that the derivation of Young's equation with the concept of force is not convenient,but the concept of energy should be used.As an example,the mathmatical expression is inferred for the minus increment -Δ G of surface free energy of the three phases system composed of spheroidal solid particle and bubble in water in the process of adsorption.
出处
《西北建筑工程学院学报（自然科学版）》
2001年第3期89-94,共6页
Journal of Northwestern Institute of Architectural Engineering
关键词
杨氏方程
接触角
表面张力
Young's equation
contact angle
surface tension
