In this section
Many Tribology Group publications are Open Access thanks to funding from the EPSRC.
@article{Puhan:2022:10.1016/j.compscitech.2021.109084,
author = {Puhan, D and Jiang, S and Wong, J},
doi = {10.1016/j.compscitech.2021.109084},
journal = {Composites Science and Technology},
pages = {1--10},
title = {Effect of carbon fiber inclusions on polymeric transfer film formation on steel},
url = {http://dx.doi.org/10.1016/j.compscitech.2021.109084},
volume = {217},
year = {2022}
}
TY - JOUR
AB - High performance polymers (HPPs) with good tribological properties are commonly used in dry contacts, wheretheir tribological performance often depends on properties of polymeric transfer materials (transfer layers) oncounterfaces. Most HPPs suffer from high temperature degradation due to frictional heating, leading to excessivedeformation and wear. Incorporating thermally conducting fillers increases their thermal conductivity andmechanical strength. The impact of these fillers on formation and properties of transfer layers, however, isunclear. In this work the effect of short carbon fiber fillers (CFs) on the nature of the transfer layers andtribological performance of polyetheretherketone (PEEK) and polyetheretherketone-polybenzimidizole (PBP)against steel were investigated at temperature up to 300 C. Transfer layers of CF reinforced PEEK and PBPcontain CF-related materials, resulting in a reduction of friction as compared to neat PEEK and PBP, especiallyaround the glass transition temperature of PEEK (Tg− PEEK) when the transfer layer is relatively thick. While theinclusion of CFs increases the bulk thermal conductivity of polymer composites, the average contact temperatureis not affected. Rather, local hot spots are generated. As a result, their transfer layers may have formed morereadily and have undergone more severe degradation than those from neat polymer. At 300 C, the PBP + CFtransfer layer is thin possibly due to abrasion by CFs dislodged from the matrix. The improvement in the wearresistance due to CF inclusion is observed with PBP up to 300 C due to its improved mechanical strength. PEEK+ CF however suffers higher wear than PEEK below Tg− PEEK. Above Tg− PEEK, a thick transfer layer is formed andthe wear of PEEK + CF reduces.
AU - Puhan,D
AU - Jiang,S
AU - Wong,J
DO - 10.1016/j.compscitech.2021.109084
EP - 10
PY - 2022///
SN - 0266-3538
SP - 1
TI - Effect of carbon fiber inclusions on polymeric transfer film formation on steel
T2 - Composites Science and Technology
UR - http://dx.doi.org/10.1016/j.compscitech.2021.109084
UR - https://www.sciencedirect.com/science/article/pii/S0266353821004401?via%3Dihub
UR - http://hdl.handle.net/10044/1/92566
VL - 217
ER -