Abstract
The sintering behavior of Y-α'-sialon powder during hot-pressing was investigated. Y-α'-sialon powder was consolidated by hot-pressing without any additive. Although the intermediate phases were formed during sintering, only Y-α'-sialon was observed as crystalline phase after sintering. The lattice constant of Y-α'-sialon was constant before and after sintering. This means that the solid solubility of Y- α'-sialon remains constant during sintering.