Low-Temperature-Graphitized and Interpenetrating Network C/Fe3O4 Magnetic Nanocomposites with Enhanced Tribological Properties under High Temperature

• DOI: 10.1021/acsami.2c03468
• Publication Date: 2022-07-18T15:46:21Z
• Authors: Yuying Chen; Qing Yang; Wenqin Lu; Yanjuan Zhang; Zuqiang Huang; Huayu Hu; Tao Gan
• Keywords: 01 natural sciences; 0104 chemical sciences

Although the core–shell structure magnetic nanocomposites have been widely used as lubricant additives, their tribological properties are still poor under high temperature and load. Herein, graphitized C/Fe3O4 (g-C/Fe3O4) with an interpenetrating network were successfully fabricated by in situ hydrothermal carbonization method combined a subsequent ball milling process at room temperature. The results showed that not only promoted transformation of carbon but also effectively eliminated interfacial effect between Fe3O4. Moreover, g-C/Fe3O4 additive rapeseed oil exhibited excellent thermo-stability 155 °C 980 N, friction coefficient reduced 32.8% compared to independent enhanced performance could be attributed its low load force (392 N), while (980 it ascribed synergistic Fe3O4 nanoparticles. This work offers for synthesis nanocomposite additives shows great potential practical applications high-temperature tribology.