Effects of Normal Load on Nanotribology of Zinc Sulphide (Zns) and Cadmium Sulphide (Cds)

Abstract

Energetic losses in systems especially miniaturized systems are presently a global challenge. In this work, four new models were developed through a combination of bond orbital model, Tomlinson’s model and Sang’s equation. Using Jump energy models, which is the energy that prevents the tips jump was calculated for Silicon (Si), Zinc Sulphide (ZnS) and Cadmium Sulphide (CdS). Through a combination of Tomlinson model and Sang’s equation, temperature model was developed. This model was modified to obtain normal load model. This final model was used to investigate the effects of normal load on nanotribology of silicon. The results obtained compare favourably with experimental results for Si found in literature. Hence the model was used for zinc sulphide and cadinium sulphide. The results show that friction at nanolevel increases with increase in normal load. There are no experimental results for zinc sulphide and cadmium sulphide. Hence, we are predicting experimental results for these semiconductors for the first time using our models.