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Abstract

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 25 nm, 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/ZrB₂ and Al₂O₃-YAG/ZrB₂ multiphase ceramic materials.

Keywords

zirconium diboride composite particles co-precipitation methods synthesis and characterization

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Synthesis and Characterization of Al(OH) 3 -Y(OH) 3 -ZrB 2 Composite Particles

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