Synergistic effect of surface textures and DLC coatings for enhancing friction and wear performances of Si3N4/TiC ceramic

Xing, Youqiang; Wang, Xinsheng; Du, Zhonghua; Zhu, Zhiwei; Wu, Ze; Liu, Lei

doi:10.1016/j.ceramint.2021.09.128

Cited by 46 publications

(16 citation statements)

References 50 publications

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“…The smaller distance of texture pattern was beneficial to improve the wear resistance of TC-SN-CMCs. It was also found that the level of stress concentration was reduced by texturing on the surface and distributed more uniformly 120 in comparison to the original surface. Addition of MoS 2 lubrication was conducive to enhance the wear resistance of TC-SN-CMCs further.…”

Section: Friction and Wear Performances Of Laser Surface Texturing Of...mentioning

confidence: 94%

Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Wang

Lin

Zhou

et al. 2023

Int J Applied Ceramic Tech

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Si3N4 ceramic matrix composites (SN‐CMCs) have been designed and widely used in many engineering fields under externally loading conditions. It is well known that the wear of materials is closely related to components’ mechanical reliability and service life. Understanding of the friction and wear performances is very important to provide insights into how to improve the wear resistance of materials. Coefficient of friction and wear rate, in general, are the most critical parameters of tribological behavior of materials. In this paper, friction and wear performances of SN‐CMCs are reviewed from the perspectives of doped phase, layered structure design, and laser surface texturing. The article describes the change of friction and wear performances of SN‐CMCs sintered with different additive phases. Tribological behavior of SN‐CMCs with engineering designed layered structure is also analyzed from the aspects of surface coating and gradient structure. In addition, friction and wear performances of SN‐CMCs under different lubrication conditions are also discussed. As an ideal processing method for hard and brittle ceramic materials, laser surface texturing has been proved to be an effective way to improve the wear resistance of SN‐CMCs. Researches have shown that the better wear resistance can be obtained by combining laser surface texture with layered structure. At the end of paper, studies on friction and wear performances of SN‐CMCs are summarized and prospected.

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Section: Friction and Wear Performances Of Laser Surface Texturing Of...mentioning

confidence: 94%

Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Wang

Lin

Zhou

et al. 2023

Int J Applied Ceramic Tech

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“…Many surface textures with different morphologies have been developed by laser ablation [2,5,7,13,21]. An Nd: YAG laser working at a wavelength of 1064 nm with a scanning speed of 40 mm/s, laser frequency of 25 kHz and pulse duration of 25 ns integrated with a computer control was used for the generation of surface textures.…”

Section: Section Geometry Of Laser Surface Texturementioning

confidence: 99%

Design and Optimization of Interface Morphology of Thermal Barrier Coatings Based on Regulation of Residual Stress: A Finite Element Simulation Study

Wang

et al. 2022

Coatings

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Laser surface texture (LST) technology can be used to increase the adherence of thermal barrier coating (TBC). The primary research method is to conduct a large number of laser experiments to determine the optimal texture parameters. To minimize costs and enhance efficiency, in the current work, five types of circular pit textures were summarized; the plane strain model was established using the transient thermomechanical coupling finite element method; the residual stress field after spraying was used as the prestress field; the influence of different textures on the distribution of the residual stress field after a thermal cycling was analyzed; and the propagation law of cracks in the coating was predicted. The current work focuses on: (1) The two-dimensional cross-sectional morphology of texture; (2) the principal stress s22 perpendicular to the interface (resulting in mode I interface crack) and the shear stress s12 parallel to the interface (resulting in mode II interface crack); (3) texture variables—diameter, depth, and spacing. The results revealed that after thermal cycling, the texture in the ceramic top coat (TC) bore tensile stress of around 350 MPa. Both sides of the pit in the metallic bond coat (BC) bore tensile stress, while the bottom bore compressive stress. Among them, the positive tensile stress of the texture with a sinusoidal section was the greatest, whereas the shear stress was the least. The maximum stress in texture increased as the diameter and depth increased, while the minimum principal stress was obtained by adjusting the spacing among the adjacent textures. The stress level in the coating was reduced by selecting the appropriate texture morphology, and the crack propagation was more complex, that is, it took a longer time before reaching failure, which is expected to improve the life.

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“…However, the excellent properties of ceramics materials make the molding and processing of sintered ceramics more difficult 5–10 . Therefore, in order to solve the problem of hard machining and poor surface quality of sintered ceramics, the processing technology of green ceramics has been proposed.…”

Section: Introductionmentioning

confidence: 99%

“…However, the excellent properties of ceramics materials make the molding and processing of sintered ceramics more difficult. [5][6][7][8][9][10] Therefore, in order to solve the problem of hard machining and poor surface quality of sintered ceramics, the processing technology of green ceramics has been proposed. Green ceramics are unsintered ceramics pressed blanks that can be made by iso-static forming, [11][12] dry pressing, 13 gel injection molding, 14 or injection molding.…”

Section: Introductionmentioning

confidence: 99%

Study on the surface damage of green ZrO₂ ceramics in dry cutting based on discrete element method

Zhu

Liu

et al. 2023

Int J Applied Ceramic Tech

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Discrete element simulation model and cutting tests are conducted to investigate the surface damage during the machining of green ZrO 2 ceramics.The discrete element simulation model (DEM) is developed based on the macroscopic physical and mechanical properties of the isostatically pressed green ZrO 2 ceramics. The validity of the simulation model is verified by cutting tests on green ZrO 2 ceramics. The results show that the physical and mechanical properties of the DEM model established by the PFC2D software are consistent with the macroscopic physical and mechanical properties of the green ZrO 2 ceramics. The depth of cut, the cutting speed, and the tool rake angles have a large effect on surface/subsurface cracks. The tool rear angle has large effect on the distribution of the peak residual stresses. When the cutting force increases suddenly, the number of cracks produced increases sharply. Smaller cutting force can reduce the number of cracks and surface damage.

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Synergistic effect of surface textures and DLC coatings for enhancing friction and wear performances of Si3N4/TiC ceramic

Cited by 46 publications

References 50 publications

Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Design and Optimization of Interface Morphology of Thermal Barrier Coatings Based on Regulation of Residual Stress: A Finite Element Simulation Study

Study on the surface damage of green ZrO₂ ceramics in dry cutting based on discrete element method

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Synergistic effect of surface textures and DLC coatings for enhancing friction and wear performances of Si3N4/TiC ceramic

Cited by 46 publications

References 50 publications

Friction and wear performances of Si3N4 ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Friction and wear performances of Si3N4 ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Design and Optimization of Interface Morphology of Thermal Barrier Coatings Based on Regulation of Residual Stress: A Finite Element Simulation Study

Study on the surface damage of green ZrO2 ceramics in dry cutting based on discrete element method

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Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Friction and wear performances of Si₃N₄ ceramic matrix composites: A review from the perspectives of doped phase, layered structure design, and laser surface texturing

Study on the surface damage of green ZrO₂ ceramics in dry cutting based on discrete element method