Tribological characteristics of Si3N4-based composites in unlubricated sliding against steel ball

Liu, Chien-Cheng; Huang, Jow-Lay

doi:10.1016/j.msea.2004.06.027

Cited by 5 publications

(1 citation statement)

References 27 publications

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“…1–3 Consequently, clarification of the wear behavior of Si 3 N 4 ceramic materials has received much attention over the last three decades. 4–7 A major challenge of Si 3 N 4 ceramics is to develop reproducible, long life, and self-lubricating ceramics for application in severe environments involving high temperature, high load, and high velocity.…”

Section: Introductionmentioning

confidence: 99%

Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Chen

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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The tribological behaviors of Si3N4–hBN composites sliding against austenitic stainless steel at different relative humidities (RH25∼35%, RH55∼65%, and RH90% or higher) were investigated by using an MMW-1 type vertical universal tribometer. The morphological and chemical characterizations of the worn surfaces of the specimens were conducted by using scanning electron microscopy, energy-dispersive X-ray spectroscopy, laser scanning microscope, and X-ray photoelectron spectroscopy. The results showed that the friction coefficients of Si3N4–10%hBN/ASS sliding pairs were lowered to about 0.03 under the relative humidity of RH55∼65%. This was mainly attributed to the formation of a surface film (consisting of B2O3, SiO2, and Fe2O3) on the wear surface of the SN10/ASS pairs. The surface film lubricated and protected the wear surfaces of pin and disc. Under the relative humidity of RH25∼35%, the formation of the surface film was limited because of less water molecules. Under the relative humidity of RH90% or higher, a part of the water molecules in the air can easily deposit on the wear surfaces, so that the microcracks on the wear surfaces would be promoted to expand, resulting in the inability to form a continuous and stable surface film. Besides, for Si3N4/austenitic stainless steel pair, no tribofilm was formed on the surfaces, and higher friction coefficient and wear rate were obtained. When hBN content increased to 20% or higher, rough wear surface was covered by the wear debris layer mainly due to their poor physical and mechanical properties.

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Section: Introductionmentioning

confidence: 99%

Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Chen

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part J:

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Small amplitude reciprocating wear performance of diamond-like carbon films: dependence of film composition and counterface material

et al. 2007

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Effect of load on the tribological properties of Si₃N₄-based composite with N-GQDs

Chen,

Ma,

Liu

et al. 2024

ILT

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Purpose The purpose of this paper is to improve the mechanical and tribological properties of Si3N4 ceramics and to make the application of Si3N4 ceramics as tribological materials more extensive. Design/methodology/approach Si3N4-based composite ceramics (SN-2L) containing nitrogen-doped graphene quantum dots (N-GQDs) were prepared by hot press sintering process through adding 2 Wt.% nanolignin as precursor to the Si3N4 matrix, and the dry friction and wear behaviors of Si3N4-based composite against TC4 disc were performed at the different loads by using pin-on-disc tester. Findings The friction coefficients and wear rates of SN-2L composite against TC4 were significantly lower than those of the single-phase Si3N4 against TC4 at the load range from 15 to 45 N. At higher load of 45 N, SN-2L/TC4 pair presented the lowest friction coefficient of 0.25, and the wear rates of the pins and discs were as low as 1.76 × 10−6 and 2.59 × 10−4mm3/N·m. The low friction and wear behavior could be attributed to the detachment of N-GQDs from the ceramic matrix to the worn surface at the load of 30 N or higher, and then an effective lubricating film containing N-GQDs, SiO2, TiO2 and Al2SiO5 formed in the worn surface. While, at the same test condition, the friction coefficient of the single-phase Si3N4 against TC4 was at a range from 0.45 to 0.58. The spalling and cracking morphology formed on the worn surface of single-phase Si3N4, and the wear mechanism was mainly dominated by adhesive and abrasive wear. Originality/value Overall, a high-performance green ceramic composite was prepared, and the composite had a good potential for application in engineering tribology fields (such as aerospace bearings). Peer review The peer review history for this article is available at: https://publons.com/publon/10.1108/ILT-05-2024-0161/

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Tribological characteristics of Si3N4-based composites in unlubricated sliding against steel ball

Cited by 5 publications

References 27 publications

Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Small amplitude reciprocating wear performance of diamond-like carbon films: dependence of film composition and counterface material

Effect of load on the tribological properties of Si₃N₄-based composite with N-GQDs

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Tribological characteristics of Si3N4-based composites in unlubricated sliding against steel ball

Cited by 5 publications

References 27 publications

Effect of the humidity on the friction and wear characteristics of Si3N4–hBN composite ceramics

Effect of the humidity on the friction and wear characteristics of Si3N4–hBN composite ceramics

Small amplitude reciprocating wear performance of diamond-like carbon films: dependence of film composition and counterface material

Effect of load on the tribological properties of Si3N4-based composite with N-GQDs

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Product

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Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Effect of the humidity on the friction and wear characteristics of Si₃N₄–hBN composite ceramics

Effect of load on the tribological properties of Si₃N₄-based composite with N-GQDs