研究論文
自発的溶浸法による SiC 粒子分散鋳鉄複合材料の製造
2004 年 76 巻 4 号 p. 296-302
詳細
2004 年 76 巻 4 号 p. 296-302
To produce partially composed metal matrix composites, namely discontinuous MMCs, a spontaneous infiltration process was examined. The preforms of the interpenetrated composites with SiC particles were infiltrated without pressure using cast iron melt. The preforms were fabricated using furan resin and waterglass as the binder containing CuO, Cu2O and Fe2O3 powder for improving their wettability between the melt and SiC preform. As the infiltration process is controlled by a wetting phenomenon, how to improve this infiltration technique based on reactive wetting was investigated.
The preforms were sintered in a Tamman tube at 1173 K before infiltration. Cast iron sample weighing 40 g was placed on the preform and then infiltrated in air at 1673 K for two hours. The furan resin combined with CuO and Cu2O resulted in complete infiltration without pressure in air at 1673 K. The waterglass combined one was found to be inferior to that of the furan.
