Oxidation Behavior of Ternary Carbide Ceramics in Hf-Al-C System in Air
文献类型：期刊论文
| 作者 | L. F. He ; J. J. Li ; H. Q. Nian ; X. H. Wang ; Y. W. Bao ; M. S. Li ; J. Y. Wang ; Y. C. Zhou |
| 刊名 | Journal of the American Ceramic Society
 |
| 出版日期 | 2010 |
| 卷号 | 93期号:10页码:3427-3431 |
| 关键词 | hafnium carbide phase-transformation elastic properties high-temperatures zirconia carbon gamma-al2o3 nucleation zr2al3c4 zro2 |
| ISSN号 | 0002-7820 |
| 中文摘要 | The oxidation behavior of Hf-Al-C ceramics containing 37.5 wt% Hf(3)Al(3)C(5), 30.5 wt% Hf(2)Al(4)C(5), and 32.0 wt% Hf(3)Al(4)C(6) has been investigated at 900 degrees-1300 degrees C in air. The oxidation kinetics approximately follows a linear law with the activation energy of 194 +/- 12 kJ/mol. The oxidation resistance of Hf-Al-C ceramics at high temperature is superior to HfC. The oxide scale is porous and composed of well-mixed t-HfO(2) and Al(2)O(3) as well as residual free carbon. The stabilization mechanisms of t-HfO(2) and free carbon have been discussed. The simultaneous oxidation of Hf and Al in Hf-Al-C ceramics can be attributed to their close oxygen affinity as well as the strong coupling between Hf-C blocks and Al-C units in the crystal structures. |
| 原文出处 | |
| 公开日期 | 2012-04-13 |
| 源URL | [http://210.72.142.130/handle/321006/31143]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | L. F. He,J. J. Li,H. Q. Nian,et al. Oxidation Behavior of Ternary Carbide Ceramics in Hf-Al-C System in Air[J]. Journal of the American Ceramic Society,2010,93(10):3427-3431. |
| APA | L. F. He.,J. J. Li.,H. Q. Nian.,X. H. Wang.,Y. W. Bao.,...&Y. C. Zhou.(2010).Oxidation Behavior of Ternary Carbide Ceramics in Hf-Al-C System in Air.Journal of the American Ceramic Society,93(10),3427-3431. |
| MLA | L. F. He,et al."Oxidation Behavior of Ternary Carbide Ceramics in Hf-Al-C System in Air".Journal of the American Ceramic Society 93.10(2010):3427-3431. |
入库方式： OAI收割
来源：金属研究所
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