| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an Si-SiC composite material having sufficiently high strength at high temperature, in a low cost. <P>SOLUTION: The Si-SiC composite material is manufactured by the following procedure: an SiC molded body and metal Si are arranged in such a way that metal Si melted by heating comes in contact with the SiC molded body, the metal Si is heat-treated at 1,400-1,800°C in an Ar gas atmosphere under ordinary pressure in a coexistence state with a mixture containing a readily oxidizable metal (e.g., metal Al) comprising an element having a larger negative absolute value of the standard free energy of oxide than that of Si, and the SiC molded body is impregnated with the metal Si melted by the heat treatment. <P>COPYRIGHT: (C)2013,JPO&INPIT |
