The Role of Inorganic Compounds Additions on the Matrix Microtexture Control of C/C Composite

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J. Korean Ceram. Soc. > Volume 34(11); 1997 > Article

Journal of the Korean Ceramic Society 1997;34(11): 1151.

무기화합물 첨가에 의한 C/C복합재료의 매트릭스 조직제어

박세민, 安田榮¹

포항산업과학연구원, 소재연구부문
¹동경공업대학, 응용 Ceramic 연구소

The Role of Inorganic Compounds Additions on the Matrix Microtexture Control of C/C Composite

ABSTRACT

Fracture of uni-directional carbon fiber reinforced carbon matrix composite is strongly dependent on the orientation of basal plane in graphite matrix when it is limited within matrix. The orientation of basal planes are vertically stacked to carbon fiber which results in the weakness for applied tensile or shear force in thermosetting resin derived-carbon matrix composite. Microtextural control of the matrix was tried through chemical interaction between metal carbides and furan resin derived-carbon matrix. SiC and TiO2 addition made the orientation disordered. However, porosity increased due to decomposition of SiC. Interfacial bonding could be controlled by TiO2 addition, but carbon fiber was considerably reacted with TiC during thermal treatment higher than 2$600^{circ}C$. Therefore, it is desirable to control the thermal treatment temperature at which decomposition of SiC was not serious and TiC/C was not formed eutectoid.

Key words: C/C composite, Orientation of graphite basal plane, Furan resin derived carbon, Chemical interaction, Microstructure control