Work

Tribological enhancement of continuous polytetrafluoroethylene composites interpenetrated by a 3D nickel network and their frictional heat transfer mechanism

Year: 2024

Type: article

Abstract: Nickel foam (NF)–polytetrafluoroethylene (PTFE) interpenetrating phase composites (IPCs) were prepared via vacuum-assisted emulsion impregnation and free sintering. The effects of the pores per inch (PPI) of the NFs on the microstructure, mechanical properties, thermal conductivity, and tribological properties were investigated. The results indicated that the incorporation of a three-dimensional Ni skeleton inhibited heat accumulation at the friction interface, and the thermal conductivity and wear resistance of the composite significantly improved with increasing PPI. Compared with those of the PTFE matrix, the thermal conductivity of the 80 PPI NF–PTFE IPCs improved by ~394% and the wear rate decreased by up to ~66%.

Source: Friction

DOI: 10.26599/frict.2025.9440948

Authors: Yujie Su, Yunxia Wang, Hao Liu, Fengyuan Yan

Institutions: Chinese Academy of Sciences, Lanzhou Institute of Chemical Physics, University of Chinese Academy of Sciences, State Key Laboratory of Solid Lubrication

Language: English

Topic: Tribology and Wear Analysis

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4405121909

FWCI: 0.302

Cites: 49

Cited by: 2

Related to: 10