MicroCT characterization on microstructure of C/SiC composites

Yan Jian Feng; Zu De Feng; Si Wei Li; Wei Hua Zhang; Xin Gang Luan; Yong Sheng Liu; Lai Fei Cheng

doi:10.3969/j.issn.1005-5053.2011.2.010

MicroCT characterization on microstructure of C/SiC composites

Yan Jian Feng, Zu De Feng, Si Wei Li, Wei Hua Zhang, Xin Gang Luan, Yong Sheng Liu, Lai Fei Cheng

School of Materials Sience and Engineering

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

5 Scopus citations

Abstract

Nondestructive three-dimensional structure of 3D C/SiC composites fabricated by chemical vapor infiltration(CVI) was characterized using X-ray microcomputed tomography(MicroCT). The current study was undertaken to assess the capabilities and limitations of MicroCT for the characterization of C/SiC composites. Results demonstrate that MicroCT can facilitate characterization of fabric morphology, defects(porosity and the different densities of SiC matrix) in 3D C/SiC composites. A gas retention and viscous flow formation in the preform was revealed in the light of three-dimensional porosity. A nodular surface morphology of SiC matrix fabricated by CVI was observed by reconstructing the matrix porosity-wall. Comparing with the SEM surface morphology of SiC coating fabricated by chemical vapor deposition(CVD), pressure difference between the inner and outer preform was demonstrated.

Original language	English
Pages (from-to)	49-54
Number of pages	6
Journal	Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
Volume	31
Issue number	2
DOIs	https://doi.org/10.3969/j.issn.1005-5053.2011.2.010
State	Published - Apr 2011

Keywords

C/SiC composites
MicroCT
Microstructure
Porosity
Preform

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10.3969/j.issn.1005-5053.2011.2.010

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title = "MicroCT characterization on microstructure of C/SiC composites",

abstract = "Nondestructive three-dimensional structure of 3D C/SiC composites fabricated by chemical vapor infiltration(CVI) was characterized using X-ray microcomputed tomography(MicroCT). The current study was undertaken to assess the capabilities and limitations of MicroCT for the characterization of C/SiC composites. Results demonstrate that MicroCT can facilitate characterization of fabric morphology, defects(porosity and the different densities of SiC matrix) in 3D C/SiC composites. A gas retention and viscous flow formation in the preform was revealed in the light of three-dimensional porosity. A nodular surface morphology of SiC matrix fabricated by CVI was observed by reconstructing the matrix porosity-wall. Comparing with the SEM surface morphology of SiC coating fabricated by chemical vapor deposition(CVD), pressure difference between the inner and outer preform was demonstrated.",

keywords = "C/SiC composites, MicroCT, Microstructure, Porosity, Preform",

author = "Feng, {Yan Jian} and Feng, {Zu De} and Li, {Si Wei} and Zhang, {Wei Hua} and Luan, {Xin Gang} and Liu, {Yong Sheng} and Cheng, {Lai Fei}",

year = "2011",

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doi = "10.3969/j.issn.1005-5053.2011.2.010",

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T1 - MicroCT characterization on microstructure of C/SiC composites

AU - Feng, Yan Jian

AU - Feng, Zu De

AU - Li, Si Wei

AU - Zhang, Wei Hua

AU - Luan, Xin Gang

AU - Liu, Yong Sheng

AU - Cheng, Lai Fei

PY - 2011/4

Y1 - 2011/4

N2 - Nondestructive three-dimensional structure of 3D C/SiC composites fabricated by chemical vapor infiltration(CVI) was characterized using X-ray microcomputed tomography(MicroCT). The current study was undertaken to assess the capabilities and limitations of MicroCT for the characterization of C/SiC composites. Results demonstrate that MicroCT can facilitate characterization of fabric morphology, defects(porosity and the different densities of SiC matrix) in 3D C/SiC composites. A gas retention and viscous flow formation in the preform was revealed in the light of three-dimensional porosity. A nodular surface morphology of SiC matrix fabricated by CVI was observed by reconstructing the matrix porosity-wall. Comparing with the SEM surface morphology of SiC coating fabricated by chemical vapor deposition(CVD), pressure difference between the inner and outer preform was demonstrated.

AB - Nondestructive three-dimensional structure of 3D C/SiC composites fabricated by chemical vapor infiltration(CVI) was characterized using X-ray microcomputed tomography(MicroCT). The current study was undertaken to assess the capabilities and limitations of MicroCT for the characterization of C/SiC composites. Results demonstrate that MicroCT can facilitate characterization of fabric morphology, defects(porosity and the different densities of SiC matrix) in 3D C/SiC composites. A gas retention and viscous flow formation in the preform was revealed in the light of three-dimensional porosity. A nodular surface morphology of SiC matrix fabricated by CVI was observed by reconstructing the matrix porosity-wall. Comparing with the SEM surface morphology of SiC coating fabricated by chemical vapor deposition(CVD), pressure difference between the inner and outer preform was demonstrated.

KW - C/SiC composites

KW - MicroCT

KW - Microstructure

KW - Porosity

KW - Preform

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DO - 10.3969/j.issn.1005-5053.2011.2.010

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JF - Hangkong Cailiao Xuebao/Journal of Aeronautical Materials

IS - 2

ER -

MicroCT characterization on microstructure of C/SiC composites

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