Title: Diamond-Like Carbon (DLC) nanocomposite coating application on selector shaft for friction reduction in double diaphragm pump application

Abstract:

A positive displacement pump known as a double diaphragm employs two flexible diaphragms that reciprocate back and forth to generate a temporary chamber used to draw and eject fluid. The diaphragms work as a separation wall between the air and the liquid. M Pump & Engineering Sdn Bhd is a Malaysian pump manufacturer located in Penang. This company's primary product is double diaphragm pumps which applied at a variety industrial applications. This pump's performance will be enhanced by the application of a Diamond-Like-Carbon (DLC) nanocomposite coating which manufacturer by Surtreat Solution Sdn Bhd. This coating will reduce the friction of the selector shaft during the pump operation, hence improved the shelf life. Due to their superior mechanical and tribological performance, DLC coatings are gaining popularity in the various industrial sector. DLC coatings are chemically inert, biocompatible, thermally stable up to 300°C, and resistant to oxidation. In addition to the aforementioned benefits, however, DLC coatings have high residual stresses and lower toughness, which restricts their use in a range of applications, particularly those demanding mechanical performance. Since 1985 the improvement in DLC quality is intensively being analyzed in two main domains: one is the operational parameters such as plasma potential, ion energies, power source, etc., and the other is the formation of DLC nanocomposite coating by doping foreign elements. In this study, different doping materials were combined with a DLC layer to form a better nanocomposite layer. The characterization of tribology properties such as hardness test, scratch test, and coefficient of friction (COF) was fully utilised, and the appropriate DLC nanocomposite coating for this application was introduced.

Biography:

Muhammad Hafiz HASSAN has completed his PhD in Mechanical Engineering and currently work as a senior lecturer at Universiti Sains Malaysia. He is a Techinical Advisor in Research and Development Division at M Pump Engineering Sdn Bhd, which is Malaysian pump manufacturer that located in Penang. His major expertise is focus on advanced composite manufacturing and advanced composite machining in an aircraft application. Currently, his research area focus on the developing a Diamond-Like-Carbon (DLC) nanocomposite coating at a various application. The main focus area of the application is on a cutting tool for drilling composite materials and pump component, which able to improve their shelf life.  He has published about 29 articles in reputed journals and  book chapters which related to the composite materials and manufacturing.