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

材料学院

科研成果: 期刊稿件 › 文章 › 同行评审

5 引用（Scopus）

摘要

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.

源语言	英语
页（从-至）	49-54
页数	6
期刊	Hangkong Cailiao Xuebao/Journal of Aeronautical Materials
卷	31
期	2
DOI	https://doi.org/10.3969/j.issn.1005-5053.2011.2.010
出版状态	已出版 - 4月 2011

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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}",

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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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MicroCT characterization on microstructure of C/SiC composites

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