润滑科技信息平台

High-temperature tribological properties of Si3N4/TiC ceramic with bionic surface textures and DLC coatings

出版日期: 2023-05-26

DOI: https://doi.org/10.1016/j.triboint.2023.108648

作者: Youqiang Xing; Mingyu Zhu; Ze Wu; Zhao Li; Shuowei Bai; Kedong Zhang; Lei Liu;

Bionic shark-skin textures and DLC coatings were prepared on Si3N4/TiC ceramic. Sliding friction tests were performed against AISI 1045 steel ball on a ball-on-disk tribometer from 25℃ to 500℃ to evaluate the high-temperature tribological properties of Si3N4/TiC ceramic with a combination of shark-skin textures and DLC coatings (TC). Results showed that the TC sample achieved the lowest friction coefficient when the temperature was less than 300°C, while as the temperature rose to 500°C, the friction coefficient of all samples initially decreased and then increased, and that of the smooth sample (SS) was lower compared to the other samples (TS and TC) at the relatively steady stage. Finally, the mechanism was discussed.

Study on the mechanical and tribological properties of DLC/Cr/TiAlN composite coatings textured by nanofluid-assisted laser processing

Pub Date: 2023-05-26 DOI: https://doi.org/10.1016/j.triboint.2023.108648

[Hongxu Luo, Dian Wang, Chengdong Wang, Kedong Zhang]

Decalin/Naphthalene Alkylation Using an Ionic Liquid Catalyst to Produce a Novel Base Oil and Its Tribological Properties

Pub Date: 2023-05-26 DOI: https://doi.org/10.1016/j.triboint.2023.108648

[Wenfei Zuo, Jun Han, Zhiping Zhao, Qiong Tang, Jinxiang Dong, Lei Liu]

Prediction of mechanical efficiency of spur gear pairs based on tribo-dynamics model of multi-tooth meshing

Pub Date: 2023-05-26 DOI: https://doi.org/10.1016/j.triboint.2023.108648

[Lei Liu, Rong Kong, Zhiwei Chen]