Open AccessExperimental study and optimization of thermal and tribological properties of epoxy hybrid polymer composite reinforced with micro sized ZrB2 and PTFE particles
Author(s) -
Aswathi A. Narayanan,
R S Sudheesh
Publication year - 2021
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/1114/1/012067
Subject(s) - materials science , tribology , composite material , epoxy , composite number , ceramic , adhesive , lubricant , service life , thermal conductivity , delamination (geology) , paleontology , layer (electronics) , biology , subduction , tectonics
Epoxy based materials have been extensively used in the friction parts and oil free applications. High local temperature due to the increased wear and coefficient of friction adversely affect the service life of parts. In this study, the thermal and tribological performance of epoxy composite reinforced with Zirconium Diboride (ZrB 2 )and Polytetrafluroethylene (PTFE) particlesis investigated. Under a load of 40 N and 1.25m/s sliding speed, the optimum content 5.939 vol% of PTFE and 5.002 vol% of ZrB 2 , yields an ultralow coefficient of friction (COF) in conjunction with a low wear rate of composite. Optimized value of Coefficient of friction (COF) and wear rate using Central composite-response surface methodology (RSM) are0.182 and 0.00033 mm 3 /Nm respectively. The increase in thermal conductivity is due to the addition of ultra-high-temperature ceramic ZrB 2 particles and solid lubricant PTFE. The optimum composition of the composite can reduce the adhesive wear and high local temperature due to friction which help to enhance the service life of tribological parts.