Development and Characterization of Graphite Fluoride Dry Lubrication System by using Gamma Radiation

By : Sachin Singh, Mukti Tyagi, Ajay Kumar Tyagi, Praveen Kumar Kaicker, Lalit Varshney

Page No: 305-321

Abstract
Graphite is the most suitable material as dry lubricant. However, its application as a lubricant is limited with necessity of moisture vapors. Alternatively, polytetrafluoroethylene (PTFE) has an excellent lubrication property but does not have mechanical characteristics. The effect of gamma radiation doses on the lubrication behavior of graphite –PTFE (Inoflon A-408) system has been studied using (TR-TW-30L) tribotester with thrust washer attachment. Different compositions of graphite and PTFE were prepared and irradiated by gamma rays. Improved tribological properties of graphite –PTFE system showed by decrease in coefficient of friction and wear. SEM-EDX, XRD and contact angle analysis confirm fluorination of graphite by gamma radiation exposure leading to the development of novel dry lubrication system.

Authors :
Sachin Singh, Mukti Tyagi, Ajay Kumar Tyagi and Praveen Kumar Kaicker : Shriram Institute for Industrial Research, Material Science Division, 19, University Road, Delhi- 110007, India
Lalit Varshney : Board of Research in Nuclear Sciences (BRNS), Trombay, Mumbai-400085, India
 

DOI: https://doi.org/10.32381/JPM.2019.36.04.2