Migration and agglomeration behaviors of Ag nanocrystals in the Ag-doped diamond-like carbon film during its long-time service

Jing, P.P.; Feng, Qiaomei; Lan, Q.H.; Ma, D.L.; Wang, H.Y.; Jiang, Xiaohong; Leng, Y.X.

doi:10.1016/j.carbon.2022.09.065

Cited by 7 publications

(1 citation statement)

References 24 publications

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“…Non-carbide metals and carbon do not react, such as silver and copper, there is no hard phase generation, and the inherent good ductility characteristics of the metal can still be maintained after entering the interior of the film. In addition, the doped particles are in the nanometer scale, which can change the particle arrangement in the amorphous carbon matrix [40][41][42][43][44].…”

Section: Effect Of Metal Doping On Toughnessmentioning

confidence: 99%

Toughness Characterization and Toughening Mechanism of Diamond-like Carbon Films

Yu,

Wang,

Hou

et al. 2023

Preprint

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Diamond-like carbon (DLC) films have a promising tribological application in green precision manufacturing, but their toughness represents a serious issue in the way of their application perspective. The film thickness is on the micrometer scale and makes conventional methods unsuitable for its toughness characterization. The absence of an accepted method for characterizing the DLC toughness has hindered the related research on the development of toughening methods and understanding the mechanism. This work intends to explore a relatively simple and acceptable characterization method to measure the film toughness. Moreover, toughening mechanisms of DLC films are proposed during the characterization to reveal the toughening mechanism. The toughness can be fully characterized through combining impact toughness and scratch toughness. The impact toughness can be obtained by observing the size of the indentation and the crack state around the indentation in the impact experiment. The scratch toughness could be assessed by combining the scratch morphology and Crack Propagation Resistance (CPRS). The improvement of film toughness should be carried out from two aspects: preventing microcrack initiation and suppressing crack propagation. Appropriate doping of non-carbide metal particles can effectively improve the toughness of the film, and there are seven main factors affecting the toughening of the film. Five toughening mechanisms of non-carbide metals from film preparation to test stage are revealed during the investigation of the change patterns.

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