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Oxidation of ZrB2 Nanoparticles at High Temperature under Low Oxygen Pressure |
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| Authors: | Guanghui Zhao Xinghong Zhang Zhenju Shen Dejiong Zhang Changqing Hong Jixue Li Ze Zhang |
| Affiliation: | 1. State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, , Hangzhou, 310027 China;2. Center for Composite Materials, Harbin Institute of Technology, , Harbin, 150001 China;3. Center of Electron Microscopy, Zhejiang University, , Hangzhou, 310027 China |
| Abstract: | The oxidation of ZrB2 nanoparticles was observed at high temperature of 1500°C under low oxygen partial pressure of 5 × 10?2 Pa by an environmental transmission electron microscope. The results demonstrate that the oxidation starts on the surface of ZrB2 nanoparticles with decomposition of ZrB2 into ZrO2 and B2O3. The nucleation and growth of ZrO2 on the surface of ZrB2 proceed with B2O3 being evaporated. |
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