抄録
Eutectic composites of Al2O3-Y3Al5O12(YAG) were prepared from solids melted by arc discharge and induction heating. Unidirectional solidification was carried out by the floating zone (FZ) method. The melt of the arc discharge was cooled rapidly and resulted in medium crystals. Coupled crystals (Al2O3 and Y3Al5O12) resulting from induction heating and the FZ method were 20-30, um in width. The eutectic powder, which was prepared by grinding eutectic solids melted by arc discharge and induction heating, was consolidated by the spark plasma system (SPS). The structure of the consolidated was similar to that of a eutectic composite, and was coarsened by the growth of coupled crystals around original particles.
