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Nanofiber Formation in the Fabrication of Carbon/Silicon Carbide Ceramic Matrix Nanocomposites by Slurry Impregnation and Pulse Chemical Vapor Infiltration
Author(s) -
Tai NyanHwa,
Chen CheFu
Publication year - 2001
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2001.tb00899.x
Subject(s) - materials science , chemical vapor infiltration , silicon carbide , nanocomposite , composite material , ceramic , microstructure , tetramethylsilane , fabrication , ceramic matrix composite , slurry , chemical vapor deposition , silicon , chemical engineering , nanotechnology , metallurgy , chemistry , medicine , alternative medicine , organic chemistry , pathology , engineering
The objectives of this work were to investigate the fabrication of carbon‐fiber‐reinforced SiC ceramic nanocomposites using the slurry impregnation process and the pulse chemical vapor infiltration (PCVI) process and to study the influences of processing parameters of the PCVI process on the microstructure variation of the nanocomposites. In this work, SiC nanosized powder was added to the matrix precursor (silicon powder mixed with phenolic resin), followed by the impregnation of the slurry into the preform. In the PCVI process, to densify the nanocomposites, tetramethylsilane (TMS) vapor mixed with hydrogen was used as the vapor precursor for matrix deposition. Fabrication parameters, such as reactant concentrations, pulse number, and holding time, were studied. Morphologies obtained from various processes were compared.