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.
|Titolo:||Microstructure and mechanical properties of short carbon fibre/SiC multilayer composites prepared by tape casting|
|Data di pubblicazione:||2012|
|Digital Object Identifier (DOI):||10.1016/j.compscitech.2012.01.014|
|Appare nelle tipologie:||1.1 Articolo in rivista|