抄録
Sialon composite composed of Y-α'-sialon and β'-sialon was obtained by hot-pressing the mixtures of Si3N4, Y2O3 and A1N powders. Ten kinds of Si3N4 powder were used as starting materials to investigate the effect of powder characteristics on the sintering behavior of this system. It is found that the oxygen content of Si3N4 powder has large effect on the sintering behavior and the amount of Y-α'-sialon after sintering. On the other hand, the lattice constant of Y-α'-sialon and β'-sialon after sintering were independent on the oxygen content of Si3N4 powder.
