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

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

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.

Original language	English
Pages (from-to)	6875-6880
Number of pages	6
Journal	Ceramics International
Volume	40
Issue number	5
DOIs	https://doi.org/10.1016/j.ceramint.2013.12.007
State	Published - Jun 2014

Keywords

2D C/SiC composites
Microstructure
SiC/SiC coating
Strength/toughness

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10.1016/j.ceramint.2013.12.007

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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",

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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

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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

Abstract

Keywords

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