Surface Analysis of ZrB₂@A1₂O₃-Y₂O₃ Core-Shell Composite Particles

Abstract

ZrB₂ has some excellent high-temperature performance. However, because it is easily oxidized in the high-temperature air to impact high-temperature strength, its applied range is restricted. To decrease the oxidization and sintering temperature and improve the strength of ZrB₂ at high temperature, in this article the prepared composite particles are analyzed with XRD, SEM, EDS, and TEM, which proves that ZrB₂@A1₂O₃-Y₂O₃ core-shell composite particles are successfully synthesized by coprecipitation method.

Keywords:

• ZrB₂
• core-shell composite particles
• surface analysis
• synthesis
• coprecipitation method

The authors are thankful for the financial support provided by the Science Foundation for Young Scholars of the Educational Department of Jiangxi Province, China (No.GJJ09595), and for the apparatus provide by the Center for Materials Testing and the Functionally Gradient Material (FGM) Research Laboratory of Wuhan University of Technology, China.