Silicon carbide multilayer composites containing short carbon fibres (Csf/SiC) were prepared by tape casting and pressureless sintering. The C fibres were dispersed in solvents with dispersant (Triton X-100) firstly and then mixed with the SiC slurry to make green Csf/SiC tapes. Fibres were homogeneously distributed in the tape and tended to align fairly well along the tape casting direction. The addition of short C fibres hindered the shrinkage in the plane containing the fibres as well as the grain growth of SiC during sintering. The weight loss occurring during oxidation tests of Csf/SiC multilayer composites increasedwith fibre amount and material porosity. Elastic modulus of Csf/SiC multilayer composites decreased linearly with fibre amount. Bending strength presented clear relationship with the relative density, that is with the total porosity.

Microstructure and mechanical properties of short carbon fibre/SiC multilayer composites prepared by tape casting / Yang, Wenshu; Biamino, Sara; Padovano, Elisa; Fuso, Laura; Pavese, Matteo; Marchisio, Silvia; VASQUEZ SANDOVAL, DREIDY MERCEDES; VEGA BOLIVAR, CLAUDIA MILENA; Fino, Paolo; Badini, CLAUDIO FRANCESCO. - In: COMPOSITES SCIENCE AND TECHNOLOGY. - ISSN 0266-3538. - 72:6(2012), pp. 675-680. [10.1016/j.compscitech.2012.01.014]

Microstructure and mechanical properties of short carbon fibre/SiC multilayer composites prepared by tape casting

YANG, WENSHU;BIAMINO, SARA;PADOVANO, ELISA;FUSO, LAURA;PAVESE, MATTEO;MARCHISIO, SILVIA;VASQUEZ SANDOVAL, DREIDY MERCEDES;VEGA BOLIVAR, CLAUDIA MILENA;FINO, Paolo;BADINI, CLAUDIO FRANCESCO
2012

Abstract

Silicon carbide multilayer composites containing short carbon fibres (Csf/SiC) were prepared by tape casting and pressureless sintering. The C fibres were dispersed in solvents with dispersant (Triton X-100) firstly and then mixed with the SiC slurry to make green Csf/SiC tapes. Fibres were homogeneously distributed in the tape and tended to align fairly well along the tape casting direction. The addition of short C fibres hindered the shrinkage in the plane containing the fibres as well as the grain growth of SiC during sintering. The weight loss occurring during oxidation tests of Csf/SiC multilayer composites increasedwith fibre amount and material porosity. Elastic modulus of Csf/SiC multilayer composites decreased linearly with fibre amount. Bending strength presented clear relationship with the relative density, that is with the total porosity.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2484625
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