Structural, electrical, and resistance force characteristics of Ga-ln-Sn eutectic alloys

摘要

This work aims at investigating the electrical property and the friction force of Ga-ln-Sn eutectic alloys. The performance of the alloys is increasingly needed on conducting lubricant. Resistance force dependence of normal force was examined by atomic force microscopy, and the results showed that Ga_(65)In_(21)Sn_(14) had the highest friction coefficient of 3.08 and Ga_(75)In_(11)Sn_(14) had a lowest friction coefficient of 1.46. Electrical resistivity of the studied eutectic alloy was from 25.9 to 27.7 μΩcm at 25°C. Accordingly, the electrical resistivity as a function of temperature revealed a temperature coefficient of ranging from 12.67×10~(-3)°C~(-1) to 4.94×10~(-3)°C~(-1). High thermally stable and wetting capability make the studied Ga-ln-Sn alloys can potentially be used as a conducting lubricant.