Synthesis and characterization of Al(OH)(3)-Y(OH)(3)-ZrB2 composite particles

摘要

In order to decrease the oxidization and improve the strength of ZrB2 at high temperature, the surface of ZrB2 was coated with Al(OH)(3) and Y(OH)(3) to synthesize Al(OH)(3)-Y(OH)(3)-ZrB2 composite particles. Through TEM, EPMA and SEM analysis, when pH was about 9, Al(OH)(3)-Y(OH)(3)-ZrB2, composite particles were successfully synthesized by co-precipitation methods. The coating layer was about 25nm, which has compaction and conformability. Dispersibility of coated ZrB2 with Al(OH)(3) and Y(OH)(3) particles were very good. Synthesis of Al(OH)(3)-Y(OH)(3)-ZrB2 composite powder will lay the foundation for preparing high-performance YAG/ZTB(2) and Al2O3-YAG/ZrB2 multiphase ceramic materials.