Ytterbium and Yttrium Co-doped SiAlON and the Manufacturing method of the same

摘要

The present invention relates to a sialon co-doped with ytterbium and yttrium, and more particularly, to sinter sialon to prepare a sialon sintered body, wherein the sialon sintered body includes ytterbium or ytterbium compounds It provides a yttrium or yttrium co-doped sialon characterized in that the yttrium or yttrium compound is co-doped. According to the present invention as described above, in order to reduce the level of conversion of Yb ³⁺ ions to Yb ²⁺ ions, Y ₂ O ₃ is additionally introduced as a second sintering aid, thereby increasing color stability and fracture toughness of the sintered body. The effect of preventing deterioration of mechanical properties and the like can be expected.