Machining of SiC ceramic matrix composites: A review

An, Qinglong; Chen, Jie; Ming, Weiwei; Chen, Ming

doi:10.1016/j.cja.2020.08.001

Cited by 202 publications

(39 citation statements)

References 109 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In accordance with the structure, we can distinguish between composites with a ceramic and a metallic matrix. Depending on the ceramic matrix material applied and the type of metallic phase, ceramic–metal composites are widely used for industrial applications such as aerospace [ 1 , 2 , 3 , 4 , 5 , 6 ]. The composites with the expected properties and microstructure may be obtained by using one of many different methods of fabrication such as powder metallurgy methods [ 7 , 8 ], in situ methods [ 9 ], methods based on the metal infiltration [ 10 ], electrophoretic deposition [ 11 ], or combination of isostatic pressing and sintering [ 12 ].…”

Section: Introductionmentioning

confidence: 99%

Al2O3-Cu-Ni Composites Manufactured via Uniaxial Pressing: Microstructure, Magnetic, and Mechanical Properties

et al. 2022

View full text Add to dashboard Cite

This study’s main goal was to obtain and characterize Al2O3-Cu-Ni composites with different metallic phase content. The study analyzed the three series of samples differing in the metallic phase 5, 10, 15 vol.% volume contents. An identical volume share of the metallic components in the metallic phase was used. Ceramic–metal composites were formed using uniaxial pressing and sintered at a temperature of 1400 °C. The microstructural investigation of the Al2O3-Cu-Ni composite and its properties involved scanning electron microscopes observations and X-ray diffraction. The size of the metallic phase in the ceramic matrix was performed using a stereological analysis. Microhardness analysis with fracture toughness measures was applied to estimate the mechanical properties of the prepared materials. Additionally, magnetic measurements were carried out, and the saturation magnetization was determined on the obtained magnetic hysteresis loops. The prepared samples, regardless of the content of the metallic phase in each series, were characterized by a density exceeding 95% of the theoretical density. The magnetic measurements exhibited that the fabricated composites had ferromagnetic properties due to nickel and nickel-rich phases. The hardness of the samples containing 5, 10, 15 vol.% metallic phases decreased with an increase in the metallic phase content, equal to 17.60 ± 0.96 GPa, 15.40 ± 0.81 GPa, 12.6 ± 0.36 GPa, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Al2O3-Cu-Ni Composites Manufactured via Uniaxial Pressing: Microstructure, Magnetic, and Mechanical Properties

et al. 2022

View full text Add to dashboard Cite

show abstract

“…However, due to the complex woven structure of the composite material as well as its excellent mechanical properties, it has brought challenges to the machining of SiC f /SiC composites. The mechanical machining of SiC f /SiC composites is characterized by severe tool wear and short tool life due to the abrasive wear from hard particles, scratch from SiC fiber, and high process temperature [6][7][8]. In addition, deteriorated surface with defects in terms of cavities, micro-cracks, edge chipping and delamination were also found, which was attributed to the anisotropy and heterogeneity of the material.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on High-Speed Milling of SiCf/SiC Composites with PCD and CVD Diamond Tools

Zhang

Liu

et al. 2021

Materials

View full text Add to dashboard Cite

Silicon carbide fiber reinforced silicon carbide ceramic matrix composite (SiCf/SiC composite) is characterized by a high strength-to-density ratio, high hardness, and high temperature resistance. However, due to the brittleness of the matrix material and the anisotropy of the reinforcing phase, it is a huge challenge for machining of the material. The milling method has advantages of a high material removal rate and applicability to complex surface geometry. However, no published literature on milling of SiCf/SiC composite has been found up to now. In this paper, high-speed milling of SiCf/SiC composites was carried out under dry conditions and cryogenic cooling using liquid nitrogen, respectively. Polycrystalline diamond (PCD) and chemical vapor deposition (CVD) diamond cutting tools were used for the milling work. The cutting performance of the two kinds of tools in high-speed milling of SiCf/SiC composites was studied. Tool failure modes and mechanisms were analyzed. The effects of the cooling approach on tool wear and machined surface quality were also investigated. The experimental results showed that under identical cutting parameters and cooling approaches, the PCD tool yielded better cutting performance in terms of a longer tool life and better surface quality than that of the CVD diamond tool. In dry machining, the failure modes of the CVD diamond tool were a large area of spalling on the rake face, edge chipping and severe tool nose fracture, whereas for the PCD tool, only a small area of spalling around the tool nose took place. Compared to the dry machining, the wear magnitudes of both PCD and CVD diamond tools were decreased in cryogenic machining. Additionally, the surface quality also showed significant improvements. This study indicates that the PCD tool is highly suitable for machining of SiCf/SiC composite, and that the cryogenic method can improve machining efficiency and surface quality.

show abstract

“…Polymerbased and metal-based composites are easily damaged in the complex high-temperature environment, for example, rocket engines in the aerospace. 14 Micro-electronic devices manufactured by the ceramic-based composites possess the significant advantages to stably work in this extreme environment. 15 In addition, lightweight is often desired in microelectronic devices, especially in spacecraft and aircraft.…”

Section: Introductionmentioning

confidence: 99%

Multi‐scale modeling for frequency‐dependent dielectric responses of non‐uniform porous carbon fiber/mullite composites

Xia

Zhao

Long

et al. 2021

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

The frequency-dependent dielectric responses of non-uniformly dispersed porous carbon fiber/mullite composites fabricated by gel-casting are intensively investigated in the X-band range. Experimental data have shown the frequency dependence of dielectric permittivity and electrical conductivity of the overall composite. The dielectric responses of non-uniformly dispersed porous carbon fiber/mullite composites in X-band are quantitatively modeled through a multi-scale homogenization method based on the effective-medium approximation. The non-uniform dispersion of carbon fibers and micro-pores in the mullite ceramic has been included via a corresponding multi-scale geometric setting. The effective dielectric permittivity and electrical conductivity of the composite both enhance with the fiber volume concentration. It is demonstrated that the decreasing dielectric permittivity and increasing electrical conductivity with respect to the AC frequency can be attributed to frequency-dependent dielectric relaxation and electron hopping effects at the interface. Furthermore, improving the uniform dispersion of carbon fibers in the mullite is essential to achieve the enhanced dielectric response of porous carbon fiber/mullite composites. The present paper can provide the directions to design the porous carbon fiber/mullite composites for micro-electronic devices in the high-temperature environment. K E Y W O R D Sdielectric response, multi-scale, non-uniform dispersion, porous carbon fiber/mullite composite, X-band How to cite this article: Xia X, Zhao S, Long L, Li Y, Zhou W. Multi-scale modeling for frequency-dependent dielectric responses of non-uniform porous carbon fiber/ mullite composites.

show abstract

Machining of SiC ceramic matrix composites: A review

Cited by 202 publications

References 109 publications

Al2O3-Cu-Ni Composites Manufactured via Uniaxial Pressing: Microstructure, Magnetic, and Mechanical Properties

Al2O3-Cu-Ni Composites Manufactured via Uniaxial Pressing: Microstructure, Magnetic, and Mechanical Properties

Experimental Study on High-Speed Milling of SiCf/SiC Composites with PCD and CVD Diamond Tools

Multi‐scale modeling for frequency‐dependent dielectric responses of non‐uniform porous carbon fiber/mullite composites

Contact Info

Product

Resources

About