Study on the effect of Ar-containing work gas on the microstructure and tribological behavior of nanocrystalline diamond coatings

Peng, Jihua; Xiong, Chao; Liao, Jiacheng; Liao, Jingwen; Yuan, Liangchuan; Li, Liejun

doi:10.1016/j.triboint.2020.106667

Cited by 11 publications

(3 citation statements)

References 45 publications

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“…Except for the intrinsic material properties, the morphology and microstructure also play a critical role in the tribological performance of NCD films. Peng et al [ 106 ] prepared NCD films with good adhesion onto carbide cement through tuning the Ar/H 2 ratio by HFCVD. Prior to the preparation of the NCD films, pre-treatments, including sand-blasting and two-step etching, were performed on the carbide cement.…”

Section: Ncd For Tribological Applicationsmentioning

confidence: 99%

Application of Nano-Crystalline Diamond in Tribology

Xia

Yang

et al. 2023

Materials

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Nano-crystalline diamond has been extensively researched and applied in the fields of tribology, optics, quantum information and biomedicine. In virtue of its hardness, the highest in natural materials, diamond outperforms the other materials in terms of wear resistance. Compared to traditional single-crystalline and poly-crystalline diamonds, nano-crystalline diamond consists of disordered grains and thus possesses good toughness and self-sharpening. These merits render nano-crystalline diamonds to have great potential in tribology. Moreover, the re-nucleation of nano-crystalline diamond during preparation is beneficial to decreasing surface roughness due to its ultrafine grain size. Nano-crystalline diamond coatings can have a friction coefficient as low as single-crystal diamonds. This article briefly introduces the approaches to preparing nano-crystalline diamond materials and summarizes their applications in the field of tribology. Firstly, nano-crystalline diamond powders can be used as additives in both oil- and water-based lubricants to significantly enhance their anti-wear property. Nano-crystalline diamond coatings can also act as self-lubricating films when they are deposited on different substrates, exhibiting excellent performance in friction reduction and wear resistance. In addition, the research works related to the tribological applications of nano-crystalline diamond composites have also been reviewed in this paper.

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Section: Ncd For Tribological Applicationsmentioning

confidence: 99%

Application of Nano-Crystalline Diamond in Tribology

Xia

Yang

et al. 2023

Materials

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“…However, for the ultra-nanocrystalline/ nanocrystalline diamond, re-nucleation occurs after the first nucleation layer, leading again to the formation of diamond islands and subsequent island coalescence. It is important to note that by manipulating deposition (growth) parameters, [80,99] a most notable substrate temperature, pressure, substrate composition and gas composition, [100][101][102][103][104] the growth rate, the grain size, and the re-nucleation (secondary nucleation) rate can be tuned, affording control over the surface roughness and quality of the film. [105] In Figure 3, the dependence of the surface roughness of a diamond thin film on the deposition time is shown for the growth of nanocrystalline diamond via HFCVD (reaction gases: CH 4 , Ar, and H 2 ) on silicon.…”

Section: Growth Of Ultrathin Diamond Filmsmentioning

confidence: 99%

Ultrathin Diamond Nanofilms—Development, Challenges, and Applications

Handschuh‐Wang

Wang

Tang

2021

Small

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Diamond is a highly attractive material for ample applications in material science, engineering, chemistry, and biology because of its favorable properties. The advent of conductive diamond coatings and the steady demand for miniaturization in a plethora of economic and scientific fields resulted in the impetus for interdisciplinary research to develop intricate deposition techniques for thin (≤1000 nm) and ultra‐thin (≤100 nm) diamond films on non‐diamond substrates. By virtue of the lowered thickness, diamond coatings feature high optical transparency in UV–IR range. Combined with their semi‐conductivity and mechanical robustness, they are promising candidates for solar cells, optical devices, transparent electrodes, and photochemical applications. In this review, the difficulty of (ultra‐thin) diamond film development and production, introduction of important stepping stones for thin diamond synthesis, and summarization of the main nucleation procedures for diamond film synthesis are elucidated. Thereafter, applications of thin diamond coatings are highlighted with a focus on applications relying on ultrathin diamond coatings, and the excellent properties of the diamond exploited in said applications are discussed, thus guiding the reader and enabling the reader to quickly get acquainted with the research field of ultrathin diamond coatings.

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“…The extreme hardness and rigidity, as well as the excellent thermal conductivity (>1500 W/mK), low thermal expansion (2,3 × 10 − 6 K − 1 ), and good abrasion resistance of the micro/nanodiamond particles [1,2] make them the perfect reinforcement to be used in the manufacture of abrasive tools, with improved wear resistance capable of cutting, grinding, sawing, drilling and polishing hard materials [3,4]; such as stone [5], optical glass [6], concrete [7], cemented carbides [8], engineering ceramics [9], etc. However, diamonds are extremely inert in contact with most metals, and therefore it is very difficult to create a strong bond between diamonds and metal surfaces due to their poor wettability and considerable differences in the coefficients of thermal expansion.…”

Section: Introductionmentioning

confidence: 99%