Preparation and Performance of C/C-SiC Ceramic Matrix Composites

Yang, Fang Hong; Wang, Yan Yan; Liu, Rui Xiang; Zhou, Chang Ling; Yang, Lǜ; Jiang, Kai

doi:10.4028/www.scientific.net/ssp.281.402

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Figure 4: Calculated max deep trenches depth before collapse versus various configurations. Some observations have already been made in the past of the influence of ultra low k trench profiles on their pattern collapse [11]. We focus hereby on an example of one such expected variability, namely the DTI shape (figure 5).…”

Section: Numerical Simulationmentioning

confidence: 95%

Pattern Collapse Simulation in CMOS Image Sensors Devices

Garnier

Sart

Prevost.

et al. 2023

SSP

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Section: Numerical Simulationmentioning

confidence: 95%

Pattern Collapse Simulation in CMOS Image Sensors Devices

Garnier

Sart

Prevost.

et al. 2023

SSP

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“…The density of composite fabric increases with the increase of needle punching depth, and the tensile strength of composite fabric in the X-Y direction decreases with the increase of needle punching density. Yang et al [ 10 ] investigated the chemical vapor infiltration (CVI) fabrication process of a needle-punched C/C composite. In the initial stage of the CVI process, pyrolytic carbon (PyC) began to deposit on the surface of carbon fiber and forms interphase.…”

Section: Introductionmentioning

confidence: 99%

Monotonic and Cyclic Loading/Unloading Tensile Behavior of 3D Needle-Punched C/SiC Ceramic-Matrix Composites

Liu

Zhang

et al. 2020

Materials

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In this paper, monotonic and cyclic loading/unloading tensile behavior of four different 3D needle-punched C/SiC composites are investigated. Under tensile loading, multiple micro parameters of tensile tangent modulus, tensile strength, and fracture strain are used to characterize tensile damage and fracture behavior. Under cyclic loading/unloading, multiple damage micro parameters of unloading residual strain, tensile peak strain, hysteresis loops width, hysteresis loops area, unloading and reloading inverse tangent modulus (ITM) are used to describe the tensile damage evolution. After tensile fracture, fracture surfaces were observed under a scanning electron microscope (SEM). Damage of matrix cracking, interface debonding, fibers fracture and pullout in different plies is observed. Relationships between composite tensile mechanical behavior, damage parameters, and micro damage mechanisms are established. When the fiber volume fraction along the loading direction increases, the composite initial tangent modulus, tensile strength and fracture strain increase, and the unloading residual strain, peak strain, hysteresis width and hysteresis area decrease. For Types 1–4 3D needle-punched C/SiC composite, the fiber volume lies in the range of 25.6–32.8%, the composite initial tangent modulus was in the range of 161.4–220.4 GPa, the composite tensile strength was in the range of 64.4–112.3 MPa, and the composite fracture strain was in the range of 0.16–0.25%.

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Effect of C/C preform density on oxidation properties of C/C-SiC composites

Yao

Feng

2020

IOP Conf. Ser.: Mater. Sci. Eng.

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In order to study the effect of C/C preform on the oxidation properties of C/C-SiC composites, four kinds CVD-SiC coated C/C-SiC composites with different initial densities of C/C preform were prepared. The thermogravimetric oxidation behavior from 25 to 1450°C of prepared C/C-SiC composites and the isothermal oxidation of CVD-SiC coated C/C-SiC composites under static air at 1500 °C were studied. And the bending properties of SiC coated C/C-SiC composites before and after oxidation were investigated. The results show that the initial oxidation temperature of C/C-SiC composites increases first and then decreases with the increase of initial C/C density, which is determined by the porosity and SiC content of the composites. When the C/C density is 1.0 g/cm3, the initial oxidation temperature is 633 °C. The CVD coated C/C-SiC composites with initial C/C density of 1.0 g/cm3 exhibited the best static oxidation resistance at 1500 °C. The weight loss is 4.23% after oxidation for 10 h at 1500 °C, and the bending strength retention rate is 71.2%.

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Preparation and Performance of C/C-SiC Ceramic Matrix Composites

Cited by 3 publications

References 13 publications

Pattern Collapse Simulation in CMOS Image Sensors Devices

Pattern Collapse Simulation in CMOS Image Sensors Devices

Monotonic and Cyclic Loading/Unloading Tensile Behavior of 3D Needle-Punched C/SiC Ceramic-Matrix Composites

Effect of C/C preform density on oxidation properties of C/C-SiC composites

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