G. Vignoles

Publications225
h-index28
Citations2,419
Highly Influential Citations48
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Analytical modeling of the steady state ablation of a 3D C/C composite
Following an analysis of surface roughness features that develop on a 3D C/C composite during ablation, i.e. wall recession by oxidation and/or sublimation, a modeling strategy is set up in order to… Expand
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Pyrocarbon anisotropy as measured by electron diffraction and polarized light
This work deals with the measurement of pyrocarbon anisotropy on very thin fiber coatings used to control the interfacial behavior in carbon/carbon composites. Differentiation of the various… Expand
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Image segmentation for phase-contrast hard X-ray CMT of C/C composites
In the aim of producing high-quality discretized 3D images of the porous architecture of C/C composites, computerized microtomographs have been acquired with synchrotron radiation X-rays. Due to the… Expand
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Investigating carbon materials nanostructure using image orientation statistics
A new characterization method of the lattice fringe images of turbostratic carbons is proposed. This method is based on the computation of their orientation field without explicit detection of… Expand
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Structural features of pyrocarbon atomistic models constructed from transmission electron microscopy images
Abstract We report on atomistic models of laminar pyrocarbons constructed using a combination of 2D high resolution transmission electron microscopy (HRTEM) lattice fringe image analysis, 3D image… Expand
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Low temperature pyrocarbons: a review
Este artigo e uma sintese das pesquisas recentes na area dos pirocarbonos. Pirocarbono e uma forma de carbono preparada por deposicao quimica em substratos quentes (acima de 900 oC) mediante pirolise… Expand
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CVD and CVI of pyrocarbon from various precursors
Abstract The control of pyrocarbon (pyC) chemical vapor infiltration (CVI) is a key issue in the processing of high-performance C/C composites with applications in aerospace parts and braking… Expand
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Modeling of isobaric–isothermal chemical vapor infiltration: effects of reactor control parameters on a densification
Abstract This work deals with the integration of off-preform and in-preform physico-chemical phenomena involved in isothermal isobaric CVI for processing of ceramic-matrix composites (CMC). A global… Expand
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Modelling binary, Knudsen and transition regime diffusion inside complex porous media
The problem of gaseous diffusion inside complex porous media arises in the modeling of many chemical processes (e.g. Chemical Vapor Infiltration (CVI), heterogeneous catalysis in porous catalysts,… Expand
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Direct 3D microscale imaging of carbon–carbon composites with computed holotomography
Abstract As part of the modelling of chemical vapor infiltration, one of the processing techniques of carbon–carbon composites, a better understanding of the relation between fiber architecture and… Expand
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