Consolidation of polymer-derived SiC matrix composites

Polymer impregnation and pyrolysis process development for improving thermal conductivity of SiCp/SiC–PIP matrix fabrication

“…Since slower heating in this temperature range was reported to be essential to increase cross-linking instead of volatilization of the lighter organic species, and thus ceramic yield [18], a slow heating rate was used for the pyrolysis cycle up to 873 K. The heating rate in each step was controlled as shown in Table 2.…”

Improvement in matrix microstructure of SiC/SiC composites by incorporation of pore-forming powder

“…This would also be related to the fact that the mechanical characteristics of a PIP-derived composite is affected by an initially-formed matrix to some extent. 11) This fact suggests that the PSH-PIP might reduce the nominal rigidity of the matrix due to an increased specific area of the interface in the matrix, though an accurate measurement of the elastic modulus wasn't carried out in this testing. The specific area of the interface is considered to be a possible influencing factor on the mechanical characteristics of the composites.…”

Dielectric properties of the SiC fiber-reinforced SiC matrix composites with the CVD SiC interphases

“…In addition, due to the excellent semiconductivity and relatively stable dielectric characteristics at high-temperature, SiC also has many practical and potential applications for microwave absorption [5][6][7][8][9][10][11][12][13][14]. However, due to the inherent brittle failure behavior of monolithic SiC ceramic, it has been gradually substituted by SiCf/SiC composites, which can significantly improve the properties of monolithic SiC ceramic [15][16][17].…”