几种典型材料与冰的冻粘系数

Research for Freezing-Adhesive-Coefficients Between Some Engineering Materials and Ice

首先提出了用于表征在一定温度下材料与冰的界面粘合强度的性能参数—冻粘系数的概念。并以 7种金属与非金属材料为试验对象 ,采用自制的冻粘强度测试装置 ,在不同的温度下分别测定了它们与冰的法向与切向冻粘强度 (即冻粘系数 )。结果表明 :一般情况下 ,材料与冰的法向冻粘系数大于切向冻粘系数 ;软基材料与冰的冻粘系数一般小于硬基材料冻粘系数 ;

This paper tests the normal and tangential freezing strength between seven kinds of metal and non-metal materials and ice at different temperatures by using the freezing adhesive strength measuring instrument by self-designed. A definition on material property, which is called Freezing-adhesive- coefficient ( C ), is given first to descript adhesive ability to ice for one material. The coefficient for any material includes normal and tangential coefficients (C σ>C τ). The results showed that the freezing adhesive strengths between metal and ice are stronger than that non-metal to ice. Freezing adhesion strength between soft-substrate material and ice surfaces are weaker than that between hard-substrate materials and ice surfaces. Freezing adherence stresses between rougher material and ice surfaces are stronger than that between smoother materials and ice.