CVD diamond water lubricated tribosystems for high load planar sliding

Abreu, C.S.; Salgueiredo, E.; Oliveira, F.J.; Fernandes, A.J.S.; Silva, Rui; Gomes, J.R.

doi:10.1016/j.wear.2008.02.012

Cited by 25 publications

(5 citation statements)

References 12 publications

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“…The authors of this work have also carried out a very similar study with microcrystalline CVD diamond films [17], that showed a steady-state sliding regime characterized by friction coefficient values in the range 0.04-0.05 and a wear coefficient value of about 10 − 8 mm 3 m − 1 N − 1 . Tribological data gathered from the present nanocrystalline CVD diamond coatings confirmed an improvement of the tribological performance, namely in terms of wear resistance which exhibited a wear coefficient value one order of magnitude lower.…”

Section: Resultsmentioning

confidence: 88%

HFCVD nanocrystalline diamond coatings for tribo-applications in the presence of water

Abreu¹,

Amaral

Oliveira

et al. 2009

Diamond and Related Materials

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Section: Resultsmentioning

confidence: 88%

HFCVD nanocrystalline diamond coatings for tribo-applications in the presence of water

Abreu¹,

Amaral

Oliveira

et al. 2009

Diamond and Related Materials

Self Cite

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“…After the initial phase, a range with rapidly decreasing frictional coefficient takes place, because the asperities are blunted and the valleys between them are filled with the wear debris. Afterwards, a relatively equilibrium of the frictional coefficient sets in when the leveled diamond plateaus are in mating contact [13]. All the frictional coefficients between the diamond films and the other counterparts present similar variation trend in the tribological tests.…”

Section: Resultsmentioning

confidence: 68%

Frictional and Wear Behavior of Micro-Crystalline and Nano-Crystalline Diamond Films

Wang

Chen

Shen

et al. 2013

AMR

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In the present investigation, both micro-crystalline and nanocrystalline diamond (MCD and NCD) films are fabricated, which are characterized by FESEM (Field Emission Scanning Electron Microscopy), surface profilemeter, Raman spectroscopy and Rockwell hardness tester. Moreover, under the dry environment, the frictional behavior of both the films sliding against commonly-used materials in the metal drawing industry is studied on a ball-on-plate rotational frictional tester, including the stainless steel, low-carbon steel, high-carbon steel and copper, demonstrating that the frictional coefficients between NCD films and all these materials are relatively smaller. Furthermore, the wear rates of both the films, which are hardly measured in the ball-on-plate friction tests, are evaluated using a home-made inner-hole line drawing apparatus, with both the diamond films deposited on the inner-hole surfaces and the low-carbon steel wires as the counterparts. Inversely, the NCD films present higher wear rates than the MCD ones, which can be attributed to the deteriorative film purity and adhesion.

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“…Over time, these asperities become more truncated, which results in a decrease in surface roughness. Any large particles of wear debris that may be present can cause grooving of the coating surface, and self-polishing by two-and three-body abrasion also occurs [87]. The reduction in surface roughness is accompanied by a decrease in the coefficient of friction until the establishment of steady-state sliding conditions.…”

Section: Mechanical Sealsmentioning

confidence: 99%

Applications of Diamond to Improve Tribological Performance in the Oil and Gas Industry

Wheeler

2018

Lubricants

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The use of diamond in tribological applications in the oil and gas industry is reviewed. The high hardness, strength, and corrosion resistance of diamond make it an attractive option for components that are susceptible to degradation by abrasive, erosive, or adhesive wear; such components may also be prone to corrosion owing to the nature of the environments to which they are often exposed. Applications such as drill bits, bearings, and mechanical seals benefit from the use of diamond, while choke valves are the subject of research programs to assess the suitability of chemical vapor deposition (CVD) diamond for these components. Also discussed are some of the conditions experienced by the components and how the properties of diamond enhance their operating lives.

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CVD diamond water lubricated tribosystems for high load planar sliding

Cited by 25 publications

References 12 publications

HFCVD nanocrystalline diamond coatings for tribo-applications in the presence of water

HFCVD nanocrystalline diamond coatings for tribo-applications in the presence of water

Frictional and Wear Behavior of Micro-Crystalline and Nano-Crystalline Diamond Films

Applications of Diamond to Improve Tribological Performance in the Oil and Gas Industry

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