Effect on lubrication regimes with silicon nitride and bearing steel balls

Muthunilavan, N; Rajaram, Gukan

doi:10.1016/j.triboint.2017.06.043

Cited by 28 publications

(5 citation statements)

References 18 publications

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“…The uniform abrasion of the spherical surface is important to the quality of the surface finishing of Si 3 N 4 balls. As a result, it is important to ensure the even distribution of the finishing traces on different areas of the spherical sections [27,28]. In this study, the simulation results were evaluated by analyzing the visualized trace and the distribution of the contact point.…”

Section: Formation Of the Trace And Distribution Of The Contact Pointsmentioning

confidence: 99%

Polishing of Silicon Nitride Ceramic Balls by Clustered Magnetorheological Finish

Xiao

Mei

et al. 2020

Micromachines

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In this study, a novel finishing method, entitled clustered magnetorheological finish (CMRF), was proposed to improve surface finish of the silicon nitride ( Si 3 N 4 ) balls with ultra fine precision. The effects of different polishing parameters including rotation speeds, eccentricities and the machining gaps on surface finish of Si 3 N 4 balls were investigated by analyzing the roughness, sphericity and the micro morphology of the machined surface. The experimental results showed that the polishing parameters significantly influenced the surface finish. The best surface finish was obtained by using the polishing parameters: the machining gap of 0.8 mm, the eccentricity of 10 mm and the rotation ratio of 3/4. To further investigate the influence of the polishing parameters on the surface finish, an analytical model was also developed to analyze the kinematics of the ceramic ball during CMRF process. The resulting surface finish, as a function of different polishing parameters employed, was evaluated by analyzing the visualized finishing trace and the distribution of the contact points. The simulative results showed that the distribution and trace of the contact points changed with different polishing parameters, which was in accordance with the results of experiments.

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Section: Formation Of the Trace And Distribution Of The Contact Pointsmentioning

confidence: 99%

Polishing of Silicon Nitride Ceramic Balls by Clustered Magnetorheological Finish

Xiao

Mei

et al. 2020

Micromachines

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“…The horizontal frictional force is measured by the load cell which is a piezoelectric transducer that converts the analogue signal into a digital one to be then processed by Labview software. Steel balls are often used as a counter body to study only tribology aspects [19]. However, tribocorrosion is the aim of this study, which uses more complex parameters to analyse.…”

Section: -Mechanical Testsmentioning

confidence: 99%

Tribocorrosion evaluation of hydrogenated and silicon DLC coatings on carbon steel for use in valves, pistons and pumps in oil and gas industry

Bueno

Solís²,

Zhao

et al. 2018

Wear

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“…Silicon nitride (Si 3 N 4 ) bearings are emerging high-precision bearings with advantages in wear resistance (Muthunilavan and Rajaram, 2017; Strobl et al , 2014). Under harsh conditions, if lubricant fails or is not available to the bearing, Si 3 N 4 bearings will be in dry friction, increasing the friction coefficient and causing a significant reduction in service life (Pape and Poll, 2019; Kwak et al , 2019).…”

Section: Introductionmentioning

confidence: 99%

Effect of process parameters on the growth and wear resistance of CrAlN coating on silicon nitride surface

Lu,

Wu,

Liu

et al. 2024

ILT

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Purpose Preparing CrAlN coatings on the surface of silicon nitride bearings can improve their service life in oil-free lubrication. This paper aims to match the optimal process parameters for preparing CrAlN coatings on silicon nitride surfaces, and reveal the microscopic mechanism of process parameter influence on coating wear resistance. Design/methodology/approach This study used molecular dynamics to analyze how process parameters affected the nucleation density, micromorphology, densification and internal stress of CrAlN coatings. An orthogonal test method was used to examine how deposition time, substrate temperature, nitrogen-argon flow rate and sputtering power impacted the wear resistance of CrAlN coatings under dry friction conditions. Findings Nucleation density, micromorphology, densification and internal stress have a significant influence on the surface morphology and wear resistance of CrAlN coatings. The process parameters for better wear resistance of the CrAlN coatings were at a deposition time of 120 min, a substrate temperature of 573 K, a nitrogen-argon flow rate of 1:1 and a sputtering power of 160 W. Originality/value Simulation analysis and experimental results of this paper can provide data to assist in setting process parameters for applying CrAlN coatings to silicon nitride bearings.

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Effect on lubrication regimes with silicon nitride and bearing steel balls

Cited by 28 publications

References 18 publications

Polishing of Silicon Nitride Ceramic Balls by Clustered Magnetorheological Finish

Polishing of Silicon Nitride Ceramic Balls by Clustered Magnetorheological Finish

Tribocorrosion evaluation of hydrogenated and silicon DLC coatings on carbon steel for use in valves, pistons and pumps in oil and gas industry

Effect of process parameters on the growth and wear resistance of CrAlN coating on silicon nitride surface

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