Tribological performance of DLC-coated ceramics against cemented carbide under dry sliding conditions

Song, Wenlong; Wang, Shoujun; Lu, Yang; An, Lei; Zhang, Qingge; Sun, Kai; Xin, Guangming; Song, Shiyong

doi:10.1016/j.ceramint.2021.03.003

Cited by 6 publications

(1 citation statement)

References 29 publications

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“…After 10 s, the friction coefficient of Ni surface with no coating increased sharply and reached the peak value of 0.77. The friction coefficient was relatively low due to the dry friction between the Si 3 N 4 ball and the oxide on the Ni surface that acted as the lubricant [32]. The friction coefficient decreased slightly and fluctuates around 0.70 afterwards.…”

Section: Friction and Wear Testmentioning

confidence: 99%

Self-Assembled Monolayers of Alkanethiols on Nickel Insert: Characterization of Friction and Analysis on Demolding Quality in Microinjection Molding

et al. 2021

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When the part geometry scaling down from macro to microscale level, the size-induced surface effect becomes significant in the injection molding process. The adhesion between polymer and nickel (Ni) mold insert during the process can lead to defects in necking, warping and deformation of microstructure. In this study, the self-assembled monolayers (SAMs) with low surface energy were deposited on the Ni surface to reduce the adhesion and further improve the demolding quality of the microstructure. Results show that the alkyl mercaptan SAMs with chemical bonds and close alignment can be successfully deposited on the surface of Ni by the solution deposition method. The contact angle, surface free energy, and friction coefficient before and after anti-adhesion treatment on the surface of mold insert were measured. In addition, the anti-adhesion properties of different alkyl mercaptan materials and the correspondingly replication quality of microstructure parts after injection molding were analyzed. It is found that the Ni mold insert treated by the perfluorodecanethiol has the best wear resistance and still shows good reproducibility at the 100th demolding cycle.

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Section: Friction and Wear Testmentioning

confidence: 99%