Strengthening/toughening of 2D C/SiC composites by coating

Y. P. Xie; L. F. Cheng; L. J. Li; Z. X. Meng; L. T. Zhang

doi:10.1016/j.ceramint.2013.12.007

Strengthening/toughening of 2D C/SiC composites by coating

Y. P. Xie, L. F. Cheng, L. J. Li, Z. X. Meng, L. T. Zhang

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

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摘要

SiC and SiC_w/SiC coatings were prepared on two-dimensional carbon fiber reinforced silicon carbide ceramic matrix composites (2D C/SiC), and strengthening/toughening of the composite by the coatings was investigated. After coating, the density of the C/SiC composites was increased effectively and the mechanical properties were improved significantly. Compared with SiC coating, SiC_w/SiC coating showed the more significant effect on strength/toughness of the composites. Coatings had two effects: surface strengthening and matrix strengthening. The latter was the dominant effect. The surface strengthening can increase the crack initiation stress, while the matrix strengthening can enhance the crack propagation resistance. The former effect increased the strength and the latter effect increased the toughness.

源语言	英语
页（从-至）	6875-6880
页数	6
期刊	Ceramics International
卷	40
期	5
DOI	https://doi.org/10.1016/j.ceramint.2013.12.007
出版状态	已出版 - 6月 2014

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title = "Strengthening/toughening of 2D C/SiC composites by coating",

abstract = "SiC and SiCw/SiC coatings were prepared on two-dimensional carbon fiber reinforced silicon carbide ceramic matrix composites (2D C/SiC), and strengthening/toughening of the composite by the coatings was investigated. After coating, the density of the C/SiC composites was increased effectively and the mechanical properties were improved significantly. Compared with SiC coating, SiCw/SiC coating showed the more significant effect on strength/toughness of the composites. Coatings had two effects: surface strengthening and matrix strengthening. The latter was the dominant effect. The surface strengthening can increase the crack initiation stress, while the matrix strengthening can enhance the crack propagation resistance. The former effect increased the strength and the latter effect increased the toughness.",

keywords = "2D C/SiC composites, Microstructure, SiC/SiC coating, Strength/toughness",

author = "Xie, {Y. P.} and Cheng, {L. F.} and Li, {L. J.} and Meng, {Z. X.} and Zhang, {L. T.}",

year = "2014",

month = jun,

doi = "10.1016/j.ceramint.2013.12.007",

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volume = "40",

pages = "6875--6880",

journal = "Ceramics International",

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TY - JOUR

T1 - Strengthening/toughening of 2D C/SiC composites by coating

AU - Xie, Y. P.

AU - Cheng, L. F.

AU - Li, L. J.

AU - Meng, Z. X.

AU - Zhang, L. T.

PY - 2014/6

Y1 - 2014/6

N2 - SiC and SiCw/SiC coatings were prepared on two-dimensional carbon fiber reinforced silicon carbide ceramic matrix composites (2D C/SiC), and strengthening/toughening of the composite by the coatings was investigated. After coating, the density of the C/SiC composites was increased effectively and the mechanical properties were improved significantly. Compared with SiC coating, SiCw/SiC coating showed the more significant effect on strength/toughness of the composites. Coatings had two effects: surface strengthening and matrix strengthening. The latter was the dominant effect. The surface strengthening can increase the crack initiation stress, while the matrix strengthening can enhance the crack propagation resistance. The former effect increased the strength and the latter effect increased the toughness.

AB - SiC and SiCw/SiC coatings were prepared on two-dimensional carbon fiber reinforced silicon carbide ceramic matrix composites (2D C/SiC), and strengthening/toughening of the composite by the coatings was investigated. After coating, the density of the C/SiC composites was increased effectively and the mechanical properties were improved significantly. Compared with SiC coating, SiCw/SiC coating showed the more significant effect on strength/toughness of the composites. Coatings had two effects: surface strengthening and matrix strengthening. The latter was the dominant effect. The surface strengthening can increase the crack initiation stress, while the matrix strengthening can enhance the crack propagation resistance. The former effect increased the strength and the latter effect increased the toughness.

KW - 2D C/SiC composites

KW - Microstructure

KW - SiC/SiC coating

KW - Strength/toughness

UR - http://www.scopus.com/inward/record.url?scp=84894565127&partnerID=8YFLogxK

U2 - 10.1016/j.ceramint.2013.12.007

DO - 10.1016/j.ceramint.2013.12.007

M3 - 文章

AN - SCOPUS:84894565127

SN - 0272-8842

VL - 40

SP - 6875

EP - 6880

JO - Ceramics International

JF - Ceramics International

IS - 5

ER -

Strengthening/toughening of 2D C/SiC composites by coating

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