Monotonic tension behavior of 2D woven oxide/oxide ceramic matrix composites at ultra-high temperature

Zhou, Wen; Zhang, X.H.; Yue, Xiaowei; Zhang, C.J.; Zhang, Y.L.; Yue, Zhufeng

doi:10.1016/j.jeurceramsoc.2021.01.001

Cited by 9 publications

(2 citation statements)

References 39 publications

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“…The high temperature mechanical behaviour of oxide CMCs has mainly been studied on composites with N720-based fibres under various conditions of stress, temperature and environment (water vapour) [18]- [22]. Concerning N610-based fibres composites, less studies have been conducted [23]- [25]. However, the authors mainly focused on temperatures beyond 1000 °C but did not consider the lower temperature range in which these materials are expected to operate.…”

Section: Introductionmentioning

confidence: 99%

Effect of temperature on the mechanical behaviour of an oxide/oxide composite

Débarre¹,

Julian-Jankowiak²,

Parlier³

et al. 2022

Journal of the European Ceramic Society

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Section: Introductionmentioning

confidence: 99%

Effect of temperature on the mechanical behaviour of an oxide/oxide composite

Débarre¹,

Julian-Jankowiak²,

Parlier³

et al. 2022

Journal of the European Ceramic Society

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“…Wen et al. (2021a, b) investigated the performance of 2-D woven and coated SiC/SiC composites, respectively, indicating that interface significantly influenced the tension behavior and failure mechanism of composites. In general, boron nitride (BN) and pyro-carbon (PyC) with the laminar structure are common interfaces materials in SiC/SiC composites.…”

Section: Introductionmentioning

confidence: 99%

Mechanical property of Pyro-Carbon coated SiC fibers fabricated by continuous chemical vapor deposition method

Zhou

et al. 2022

MMMS

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PurposeA continuous chemical vapor deposition (CVD) method has been used to fabricate pyro-carbon (PyC) coating on continuous silicon carbide (SiC) fibers. The paper aims to evaluate these coated fibers by testing filament tensile and using microstructure characterization.Design/methodology/approachThe continuous SiC fiber-reinforced SiC matrix (SiC/SiC) composite is widely studied in aerospace and nuclear applications. The PyC is the probable option in fusion and fast reactor. However, the conventional fabrication method of PyC coating has some drawbacks influencing performance and efficiency.FindingsThe results showed that PyC-coated SiC fibers with continuous CVD method are more straight than conventional ones and residual deformations could not be observed, and these PyC coatings have complete geometry and uniform thickness. In different process conditions, the thickness of PyC coating could control from ∼100 to ∼1,000 nm.Originality/valueThe coated SiC fibers in a lower gas ratio (1:7 to 1:3), lower pressure (500–1,000 Pa) and appropriate winding speed (3 to 5 rpm) have relative high filament tensile strength (∼3.5 to ∼3.9 GPa). And the strength of coated SiC fibers has a negative correlation with the measured thickness of PyC coating. A distinctive growth process was discovered in the continuous CVD method. In a certain range, the quicker growing rate of PyC is obtained in shorter deposition time which means an efficient and quality method could be applied to fabricate coatings.

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