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Complex Geometry Macroporous SiC Ceramics obtained by 3D-printing, Polymer Impregnation and Pyrolysis (PIP) and Chemical Vapor Deposition (CVD)
STEMPIN, M.-P.
Centre Technologique Nouvelle Aquitaine des Composites et des Matériaux Avancés [CANOE ]
< Réduire
Centre Technologique Nouvelle Aquitaine des Composites et des Matériaux Avancés [CANOE ]
Langue
EN
Article de revue
Ce document a été publié dans
Journal of the European Ceramic Society. 2021-01-01
Résumé en anglais
We present here an original route for the manufacturing of SiC ceramics based on 3D printing, polymer impregnation and pyrolysisand chemical vapor deposition (CVD). The green porous elastomerstructures werefirst prepared ...Lire la suite >
We present here an original route for the manufacturing of SiC ceramics based on 3D printing, polymer impregnation and pyrolysisand chemical vapor deposition (CVD). The green porous elastomerstructures werefirst prepared by fused deposition modeling(FDM) 3D-printingwith a composite polyvinyl alcohol/elastomer wire and soaking in water, then impregnated with an allylhydridopolycarbosilanepreceramic polymer. After crosslinking and pyrolysis, the polymer-derived ceramicswere reinforced by CVD of SiC using CH3SiCl3/H2as precursor.The multiscale structure of the SiC porous specimens was examined by X-ray tomographyand scanning electron microscopy analyses. Theiroxidation resistancewasalso studied. The pure and dense CVD-SiC coating considerably improves theoxidation resistance.< Réduire
Mots clés en anglais
Fused deposition modeling (FDM)
Silicon carbide
Polymer-derived ceramics (PDC)
Chemical vapor deposition (CVD)
Oxidation resistance
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