Assessment of machined surface for SiCf/SiC ceramic matrix composite during ultrasonic vibration-assisted milling-grinding

Xiong, Yifeng; Liu, Cong; Wang, Wenhu; Jiang, Ruisong; Huang, Bo; Wang, Donghui; Zhang, Sheng-guo

doi:10.1016/j.ceramint.2022.10.058

Cited by 26 publications

(3 citation statements)

References 43 publications

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“…A novel material known as quartz fiber reinforced ceramic matrix composite is based on classic ceramic material and uses quartz fiber as reinforcement [1]. It has a wide range of potential applications in the aerospace industry due to its exceptional features, which include low density, high specific strength, high specific modulus, high temperature resistance, and strong wave permeability [2].Although the existing near clean forming technology can prepare the material, secondary processing is generally needed in order to meet the requirements of product shape, surface properties, surface roughness and dimensional accuracy required in actual production.…”

Section: Introductionmentioning

confidence: 99%

Research on Ultrasonic Vibration Assisted Grinding Technology of Quartz Fiber Reinforced Ceramic Matrix Composites

Zhang,

Xue,

2024

J. Phys.: Conf. Ser.

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Ceramic matrix composites have good mechanical properties and high temperature resistance, but it is difficult to process. In order to solve the problems of fast tool wear and low machining efficiency in the dry grinding process, ultrasonic vibration assisted grinding technology of quartz fiber reinforced ceramic matrix composites is adopted in this paper. Grinding force, machining efficiency, tool wear and surface roughness are analyzed through the comparison experiment between the conventional grinding and the ultrasonic vibration assisted grinding. The influence of the ultrasonic vibration assistance and process parameters on machining quality and tool life is further obtained. According to the findings, when compared to traditional grinding, ultrasonic vibration grinding can lower the grinding force by 25% to 58% and the surface roughness by up to 16%. The tool life and machining efficiency can be significantly increased with the help of ultrasonic vibration.

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Section: Introductionmentioning

confidence: 99%

Research on Ultrasonic Vibration Assisted Grinding Technology of Quartz Fiber Reinforced Ceramic Matrix Composites

Zhang,

Xue,

2024

J. Phys.: Conf. Ser.

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“…Silicon carbide ceramic matrix composites (SiC CMCs) are characterized by low density, corrosion, and radiation resistance, as well as excellent high‐temperature mechanical properties, 1,2 it is an excellent structural material with great application prospects in aerospace as well as nuclear energy fields 3,4 . Researchers have greatly improved the fracture toughness of SiC CMCs by introducing reinforcements into the ceramic matrix, such as fibers, 5 whiskers, 6 and nanomaterials, 7 it overcomes inherent brittleness of traditional SiC ceramics. The performance of SiC CMCs can be influenced by the fiber‐reinforced, interface layer and preparation process 8 .…”

Section: Introductionmentioning

confidence: 99%

Slurry‐impregnating hot‐press sintered silicon carbide nanofiber/silicon carbide composites with Al‐B‐C as sintering additives

Tao,

Lou,

et al. 2024

Int J Applied Ceramic Tech

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Silicon carbide nanofiber/silicon carbide (SiCnf/SiC) composites with a laminar stacking structure were prepared by the slurry impregnation hot‐press sintering using aluminum (Al) powder, boron (B) powder, and carbon black as sintering aids. SiCnf paper was fabricated using nanofibers and impregnated with the slurry of SiCnp and sintering aids, and the SiCnf/SiC preforms were fabricated by the alternating stack of the SiCnf paper and SiCnp. The pyrolysis carbon and boron nitride interface layers were deposited on the surface of SiCnf by chemical vapor deposition and vacuum impregnation‐pyrolysis methods. The effects of different sintering temperatures on the relative density, porosity, sectional microscopic morphology, and mechanical properties of the composites were investigated. The results show that the fracture toughness of SiCnf/SiC composites is significantly improved. The mechanical properties of the composites were optimized at a sintering temperature of 1950°C and a sintering pressure of 30 MPa, with flexural strength and fracture toughness of 548 MPa and 15.86 MPa·m1/2, respectively. The liquid phase Al8B4C7 compound generated at the high temperature promoted the densification of the composites.

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“…Most CMCs are prepared by near-net molding, however, to satisfy the requirements for high-precision assembly and use, high dimensional accuracy and surface quality standards are typically met through secondary processing [17]. Due to the high hardness, multi-phase structure, and anisotropy of this type of material, many defects are easily formed on the surface during traditional processing, such as severe tool wear, low processing efficiency, surface cracks, broken, chipping, and other defects [18].…”

Section: Introductionmentioning

confidence: 99%

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

Wang¹,

Song³

et al. 2023

Preprint

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Ceramic matrix composites (CMCs) with carbon fiber reinforcement are widely used in the aircraft industry and other important defense industries due to their superior performance. To investigate the factors affecting the grinding force and surface quality of 2.5D needled Cf/SiC material, the motion equation of abrasive particles under longitudinaltorsional ultrasonic vibration was established using kinematic analysis, and the trajectory analysis of abrasive particles was carried out using MATLAB simulation. The grinding force, surface topography, and roughness of conventional grinding (CG) and longitudinal-torsional ultrasonic vibration-assisted grinding (L-TUVAG) were analyzed and evaluated to explore the process mechanism of Cf/SiC material damage. An improved processing technique and parameters for processing were proposed. The findings show that the principal pathways for material removal during grinding are matrix breaks, interfacial debonding, fiber damage, and fractures. Grinding parameters have a significant influence on the quality of the processing surface. The surface topography steadily improves during the grinding process as the grinding wheel speed increases. However, the feed speed and grinding depth have a reverse impact. High-speed micro-grinding can significantly improve grinding efficiency and surface processing quality. L-TUVAG has a lower grinding force than CG by a factor of 16.16% to 35.82%, and the surface processing quality is correspondingly better. These discoveries enable the prediction of surface morphology and roughness characteristics of materials. And provide important technological support for improving the processing quality of CMCs.

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Assessment of machined surface for SiCf/SiC ceramic matrix composite during ultrasonic vibration-assisted milling-grinding

Cited by 26 publications

References 43 publications

Research on Ultrasonic Vibration Assisted Grinding Technology of Quartz Fiber Reinforced Ceramic Matrix Composites

Research on Ultrasonic Vibration Assisted Grinding Technology of Quartz Fiber Reinforced Ceramic Matrix Composites

Slurry‐impregnating hot‐press sintered silicon carbide nanofiber/silicon carbide composites with Al‐B‐C as sintering additives

Experimental and mechanism study of Cf/SiC undergoing longitudinal-torsional ultrasonic vibration assisted grinding

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