SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength

Shen Qingliang; Li Hejun; Li Lu; Li Yunyu; Fu Qiangang; Lin Hongjiao; Song Qiang

doi:10.1016/j.msea.2015.10.114

SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength

Shen Qingliang, Li Hejun, Li Lu, Li Yunyu, Fu Qiangang, Lin Hongjiao, Song Qiang

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

36 Scopus citations

Abstract

SiC nanowires with surface dentations were in-situ grown on carbon fiber cloths and then they were stacked to form 2D carbon preform. After that, the preform was densified via chemical vapor infiltration to prepare SiC nanowire reinforced carbon/carbon (SiCNW-C/C) composites. Introduced SiC nanowires significantly change the crystallite orientations of pyrocarbon matrix. Coaxial pyrocarbon with higher optical activity and larger crystallite size has been deposited around the nanowires. The interlaminar shear strength of SiCNW-C/C composites increases by 32% compared with the baseline. The increase of interlaminar strength could be ascribed to a synergistic effect of SiCNWs and coaxial pyrocarbon interlayer. SiC nanowires with dentations construct nanoscale mechanical interlocking with the matrix and improve the load transfer efficiency. Besides, the pyrocarbon interlayer helps deflecting the cracks out of the basal shear plane under shear stress.

Original language	English
Pages (from-to)	583-589
Number of pages	7
Journal	Materials Science and Engineering: A
Volume	651
DOIs	https://doi.org/10.1016/j.msea.2015.10.114
State	Published - 10 Jan 2016

Keywords

Carbon-carbon composites (CCCs)
Chemical vapor deposition (CVD)
Microstructures
Strength

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10.1016/j.msea.2015.10.114

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title = "SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength",

abstract = "SiC nanowires with surface dentations were in-situ grown on carbon fiber cloths and then they were stacked to form 2D carbon preform. After that, the preform was densified via chemical vapor infiltration to prepare SiC nanowire reinforced carbon/carbon (SiCNW-C/C) composites. Introduced SiC nanowires significantly change the crystallite orientations of pyrocarbon matrix. Coaxial pyrocarbon with higher optical activity and larger crystallite size has been deposited around the nanowires. The interlaminar shear strength of SiCNW-C/C composites increases by 32% compared with the baseline. The increase of interlaminar strength could be ascribed to a synergistic effect of SiCNWs and coaxial pyrocarbon interlayer. SiC nanowires with dentations construct nanoscale mechanical interlocking with the matrix and improve the load transfer efficiency. Besides, the pyrocarbon interlayer helps deflecting the cracks out of the basal shear plane under shear stress.",

keywords = "Carbon-carbon composites (CCCs), Chemical vapor deposition (CVD), Microstructures, Strength",

author = "Shen Qingliang and Li Hejun and Li Lu and Li Yunyu and Fu Qiangang and Lin Hongjiao and Song Qiang",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2016",

month = jan,

day = "10",

doi = "10.1016/j.msea.2015.10.114",

language = "英语",

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TY - JOUR

T1 - SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength

AU - Qingliang, Shen

AU - Hejun, Li

AU - Lu, Li

AU - Yunyu, Li

AU - Qiangang, Fu

AU - Hongjiao, Lin

AU - Qiang, Song

PY - 2016/1/10

Y1 - 2016/1/10

N2 - SiC nanowires with surface dentations were in-situ grown on carbon fiber cloths and then they were stacked to form 2D carbon preform. After that, the preform was densified via chemical vapor infiltration to prepare SiC nanowire reinforced carbon/carbon (SiCNW-C/C) composites. Introduced SiC nanowires significantly change the crystallite orientations of pyrocarbon matrix. Coaxial pyrocarbon with higher optical activity and larger crystallite size has been deposited around the nanowires. The interlaminar shear strength of SiCNW-C/C composites increases by 32% compared with the baseline. The increase of interlaminar strength could be ascribed to a synergistic effect of SiCNWs and coaxial pyrocarbon interlayer. SiC nanowires with dentations construct nanoscale mechanical interlocking with the matrix and improve the load transfer efficiency. Besides, the pyrocarbon interlayer helps deflecting the cracks out of the basal shear plane under shear stress.

AB - SiC nanowires with surface dentations were in-situ grown on carbon fiber cloths and then they were stacked to form 2D carbon preform. After that, the preform was densified via chemical vapor infiltration to prepare SiC nanowire reinforced carbon/carbon (SiCNW-C/C) composites. Introduced SiC nanowires significantly change the crystallite orientations of pyrocarbon matrix. Coaxial pyrocarbon with higher optical activity and larger crystallite size has been deposited around the nanowires. The interlaminar shear strength of SiCNW-C/C composites increases by 32% compared with the baseline. The increase of interlaminar strength could be ascribed to a synergistic effect of SiCNWs and coaxial pyrocarbon interlayer. SiC nanowires with dentations construct nanoscale mechanical interlocking with the matrix and improve the load transfer efficiency. Besides, the pyrocarbon interlayer helps deflecting the cracks out of the basal shear plane under shear stress.

KW - Carbon-carbon composites (CCCs)

KW - Chemical vapor deposition (CVD)

KW - Microstructures

KW - Strength

UR - http://www.scopus.com/inward/record.url?scp=84946926547&partnerID=8YFLogxK

U2 - 10.1016/j.msea.2015.10.114

DO - 10.1016/j.msea.2015.10.114

M3 - 文章

AN - SCOPUS:84946926547

SN - 0921-5093

VL - 651

SP - 583

EP - 589

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

SiC nanowire reinforced carbon/carbon composites with improved interlaminar strength

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Keywords

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