摘要
A dense double layer ZrB2-SiC-Si/SiC-Si coating with high content of ZrB2 was designed and fabricated by dipping-carbonization joint gaseous silicon infiltration. This coating can protect C/C substrate from oxidation in air at 1773 K for 500 h with a weight gain of 1.14 %. Such good oxidation protective performance was ascribed to the dense compound silicate oxide layer accompanied by ZrSiO4/ZrO2 pinning phases and compressive stress field around ZrB2 particles during oxidation. Besides, introducing abundant ZrB2 phase could inhibit the evaporation of silicate glass at 1973 K, which could protect C/C composites for 78 h with a weight loss of 1.16 %.
| 源语言 | 英语 |
|---|---|
| 文章编号 | 109331 |
| 期刊 | Corrosion Science |
| 卷 | 183 |
| DOI | |
| 出版状态 | 已出版 - 1 5月 2021 |
指纹
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