Sliding friction of ceramics: Mechanical action of the wear debris

Denape, Jean; Lamon, Jacques

doi:10.1007/bf00575394

Cited by 89 publications

(33 citation statements)

References 16 publications

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“…During wear test at 400 8C and 20 N load, an obvious decrease in friction coefficient is observed after a sliding time of 900 s. It is supposed to give information on the wear behavior of the debris or structural evolution at the interface. When the wear debris is removed from the interface or a certain lubricious interface forms, the friction coefficient will decreases [11,12].…”

Section: Resultsmentioning

confidence: 99%

Wear mechanisms of TiN–TiB2 ceramic in sliding against alumina from room temperature to 700°C

Yang

Ouyang

Liu

et al. 2010

Ceramics International

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Section: Resultsmentioning

confidence: 99%

Wear mechanisms of TiN–TiB2 ceramic in sliding against alumina from room temperature to 700°C

Yang

Ouyang

Liu

et al. 2010

Ceramics International

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“…The surface was polished to provide an arithmetic roughness Ra of less than 0.1 m. Fig. 1 shows a scanning electron micrograph of the microstructure of this SiC etched by boiling Murakami's reagent (45 g of K 3 Fe(CN) 6 , 40 g of NaOH and 200 mL of H 2 O). The average size of the silicon carbide grains is about 5 m. Black regions are identified as graphite, boron carbide B 4 C and porosities.…”

Section: Methodsmentioning

confidence: 99%

“…3,4 Overall, it shows a coefficient of friction in the range of 0.2-0.7 and a low wear rate, particularly when lubricated. [5][6][7] Combined with a counter-face ring made of a softer carbon-graphite, the dry sliding of SiC can be sustained even under severe conditions of pressure and speed. 8 Graphite has been intensively studied in tribology since Bragg first described its lamellar structure.…”

Section: Introductionmentioning

confidence: 99%

Tribological characterization of silicon carbide and carbon materials

Lafon-Placette

Delbé

Denape

et al. 2015

Journal of the European Ceramic Society

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OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. AbstractTribological properties of a silicon carbide in homogeneous contact configuration are often related in lubricated or even dry conditions but only for ball or pin-on-disk configurations. The present study develops an experiment using a ring-on-ring device under dry friction in order to better match the industrial needs for dry mechanical seals applications. Tribological tests were run at a temperature of 120• C, a sliding speed of 2 m/s and a contact pressure of 0.15 MPa on SiC/SiC and SiC/C pairs, with different impregnated carbon materials. The measurements were sensitive to the formation and the circulation of the third body at the contact interface. This third body was mainly composed by carbon, oxygen and the carbon impregnants. An amorphization process of the tribofilm was revealed by using Raman spectroscopy. Based on chemical analysis and mechanical considerations, the wear mechanisms were found to be driven by cracking process and oxidation.

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“…Many studies in ceramics have confirmed the presence of a third body and its significant role on the tribological behavior under dry contact conditions. [9][10][11][12] Although the presence of a deformable third body can results in low friction and wear, 13 some studies have shown the formation of a transfer layer as well as abrasive third body in a ceramic contact limited their application under unlubricated sliding conditions. 14,15 Furthermore, several tribological studies showed an influence of the countersurface on the behavior of third body.…”

Section: Introductionmentioning

confidence: 99%