The influence of oil additives on spread cracks in silicon nitride

Karaszewski, Waldemar

doi:10.1016/j.triboint.2007.12.002

Cited by 8 publications

(8 citation statements)

References 7 publications

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“…The detailed data concerning experimental research, apparatus for production of crack on the ceramic ball surface, test conditions, etc. were presented in the following papers [3,4,10].…”

Section: Experimental Methodsmentioning

confidence: 99%

“…Another surface cracks caused by blunt impact load have also ring shape and are the most common type found on ceramic ball surface. These defects decrease the rolling contact fatigue performance considerably [2][3][4][5][6] so it is important to understand the failure mechanisms caused by such cracks.…”

Section: Introductionmentioning

confidence: 99%

“…9 presents silicon nitride ball surface view after 3 hours test where large material removal is visible in the ring mouth area. Detailed experimental research, observations and analysis were described in the following papers [3,4,6,10].…”

mentioning

confidence: 99%

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Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Karaszewski

2016

SSP

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The properties of ceramics, specifically low density, high hardness, high temperature capability and low coefficient of thermal expansion are of most interest to rolling element manufacturers. Surface ring cracks on lubricating rolling contact fatigue failure has been studied using numerical fracture analysis. Such cracks are very often found on ceramic bearing balls and decrease fatigue life rapidly. The numerical calculations are based on a three-dimensional model of the ring crack. The stress intensity factors along crack front are analyzed using a finite element analysis. The numerical analysis is verified by experimental studies.

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“…The detailed data concerning experimental research, apparatus for production of crack on the ceramic ball surface, test conditions, etc. were presented in the following papers [3,4,10].…”

Section: Experimental Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Karaszewski

2016

SSP

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“…Nanosized silicon nitride (Si 3 N 4 ) is an important ceramic material used for various applications because of its high strength, high fracture toughness, high thermal shock resistance, low coefficient of thermal expansion, and good wear resistance. [1][2][3][4] Nanosized S 3 N 4 had also been proven to be an effective filler for the improvement of mechanical properties and, in particular, the wear resistance of polymeric composites, such as PTFE, epoxy, PEEK, bismaleimide composites, NBR, [5][6][7][8][9] and so on.…”

Section: Introductionmentioning

confidence: 99%

Study of Surface Modification of Nanosize Si₃N₄with Macromolecular Coupling Agent LMPB-g-GMA in Different Solvents

Wei

Qian

Miao

et al. 2012

Journal of Dispersion Science and Technology

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A new macromolecular coupling agent, low-molecular-weight polybutadiene liquid rubber (LMPB)-glycidyl methacrylate (GMA), was synthesized using solution polymerization initiated by benzoyl peroxide (BPO). The molecular structure was confirmed by FTIR and NMR. This macromolecular LMPB-GMA was used for surface modification of silicon nitride (Si 3 N 4 ) nanopowder in n-heptane, chloroform, ethyl acetate, and DMF, respectively. LMPB-GMA and modified nano-Si 3 N 4 were systematically investigated by FTIR, NMR, TGA, and TEM. The results showed that LMPB-GMA bonded and formed an organic coating layer onto the surface of nanosized Si 3 N 4 particles. The polarity of the solvents plays an important role in this process. Strong or weak polar both affect the results. The dosage loading of LMPB-GMA is 12 wt% of nanosized Si 3 N 4 . Nanosized Si 3 N 4 modified in ethyl acetate has better dispersibility and stability than that modified in n-heptane or DMF. TEM pictures also reveal that modified nano-Si 3 N 4 possesses good dispersibility.

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“…Another surface cracks caused by blunt impact load have also ring shape and are the most common type found on ceramic ball surface. These defects decrease the rolling contact fatigue performance considerably [2][3][4][5] so it is important to understand the failure mechanisms caused by such cracks.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Crack Propagation in Silicon Nitride

Karaszewski

2011

KEM

Self Cite

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The properties of ceramics, specifically low density, high hardness, high temperature capability and low coefficient of thermal expansion are of most interest to rolling element manufacturers. The influence of ring crack size on rolling contact fatigue failure has been studied using numerical fracture analysis. Such cracks are very often found on ceramic bearing balls and decrease fatigue life rapidly. The numerical calculation are based on a three dimensional model for the ring crack propagation. The stress intensity factors along crack front are analyzed using a three-dimensional boundary element model. The numerical analysis is verified by experimental studies.

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The influence of oil additives on spread cracks in silicon nitride

Cited by 8 publications

References 7 publications

Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Study of Surface Modification of Nanosize Si₃N₄with Macromolecular Coupling Agent LMPB-g-GMA in Different Solvents

Numerical Analysis of Crack Propagation in Silicon Nitride

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The influence of oil additives on spread cracks in silicon nitride

Cited by 8 publications

References 7 publications

Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Analysis of Ceramic Elements with Ring-Crack Defects in Lubricated Rolling Contact

Study of Surface Modification of Nanosize Si3N4with Macromolecular Coupling Agent LMPB-g-GMA in Different Solvents

Numerical Analysis of Crack Propagation in Silicon Nitride

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Study of Surface Modification of Nanosize Si₃N₄with Macromolecular Coupling Agent LMPB-g-GMA in Different Solvents