Assessment of Geometrical and Transport Properties of a Fibrous C/C Composite Preform Using x-ray Computerized Micro-tomography: Part I. Image Acquisition and Geometrical Properties

Raw and partially infiltrated carbon–carbon composite preforms have been scanned by high-resolution synchrotron radiation x-ray computerized micro-tomography. Three dimensional high-quality images of the pore space have been produced at two distinct resolutions and have been used for the computation...

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Bibliographic Details
Published inJournal of materials research Vol. 20; no. 9; pp. 2328 - 2339
Main Authors Coindreau, Olivia, Vignoles, Gérard L.
Format Journal Article
LanguageEnglish
Published New York, USA Cambridge University Press 01.09.2005
Subjects
Infiltration
Porosity
X-ray tomography
X-ray tomography
Infiltration
Porosity
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Summary:Raw and partially infiltrated carbon–carbon composite preforms have been scanned by high-resolution synchrotron radiation x-ray computerized micro-tomography. Three dimensional high-quality images of the pore space have been produced at two distinct resolutions and have been used for the computation of geometrical quantities: porosity, internal surface area, pore sizes, and their distributions, as well as local and average fiber directions. Determination of the latter property makes use of an original algorithm. All quantities have been compared to experimental data with good results. Structural models appropriate for ideal families of cylinders are shown to represent adequately the actual pore space.
Bibliography:ark:/67375/6GQ-2JXLNPRR-P
PII:S0884291400091494
ArticleID:09149
istex:84E44F8766CB09930BB60866C30A621165BC659E
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0884-2914
2044-5326
DOI:10.1557/jmr.2005.0311