研究論文
Fe-C-Si溶湯からのSiCの晶出形態
1989 年 61 巻 4 号 p. 240-245
詳細
1989 年 61 巻 4 号 p. 240-245
For producing the particle dispersed Metal Matrix Compsite (MMC), we tried to cristallize the SiC particles in molten metal. Fe-25%Si and Ni-25%Si were selected. These alloys were melted in pure-graphite crucible in CO or Ar atmosphere at 1,500°C and hold up to 20h.
The main results are follows;
1) SiC crystallize in Fe-Si-C system and Ni-Si-C system. In the former, the rate of SiC crystallization is higher and more crystallized SiC are obtained.
2) In CO atmosphere SiC crystallize as particle, and in Ar as group on crucible wall.
3) The difference of SiC morphology is caused by existence of SiO2 film at molten metal-crucible interface.
