Oxidation Behavior at 1000-1300 °C in air of Ti2AlC-20TiB2 Synthesized by in-situ Reaction/Hot Pressing
文献类型：期刊论文
| 作者 | Wang, Wenting1,2; Xu, Jingjun1; Ma, Ke1; Li, Meishuan1; Li, Xingchao3; Li, Tongqi3 |
| 刊名 | JOURNAL OF INORGANIC MATERIALS
 |
| 出版日期 | 2025-01-20 |
| 卷号 | 40期号:1页码:31-38 |
| 关键词 | Ti2AlC-TiB2 composite high-temperature oxidation behavior oxidation protective layer high-temperature oxidation resistance mechanism |
| ISSN号 | 1000-324X |
| DOI | 10.15541/jim20240352 |
| 通讯作者 | Xu, Jingjun(jjxu@imr.ac.cn) |
| 英文摘要 | Ti2AlC is considered to be one of the compounds with the best antioxidant properties in MAX phase materials, with potential application prospects in the field of high-temperature structural materials and high-temperature antioxidant protective coatings. However, the low hardness and strength of single phase Ti2AlC limit its wide application in the field of high-temperature material. In order to improve the properties of Ti2AlC, Ti2AlC-20%TiB2 (in volume) composites (referred to as Ti2AlC-20TiB2) were synthesized by the in-situ solid-liquid phase reaction/hot pressing method. Besides, the high temperature oxidation behavior in the temperature range of 1000-1300 degrees C was studied, and the oxidation resistance mechanism at high temperature was analyzed. The results show that the oxidation kinetics of Ti2AlC-20TiB2 composites is logarithmic, exhibiting superior oxidation resistance compared to single phase Ti2AlC. Below 1200 degrees C, the oxide scale is mainly composed of an inner layer of Al2O3 and an outer layer of TiO2, while the outer layer of oxide scale is a mixture of TiO2 and Al2TiO5 at 1300 degrees C. The Al2O3 protective layer formed in the composite is denser than that in single-phase Ti2AlC, which is the key to its excellent antioxidant performance. The addition of TiB2 reduces the grain size of the material and increases the number of grain boundaries for short-circuit diffusion, which facilitates the selective oxidation of Al and accelerates the formation of Al2O3 protective layer. Additionally, B2O3 produced during the oxidation of TiB2 can effectively fill the micropores and repair microcracks, thereby preventing the internal diffusion of O and further enhancing the antioxidant properties of the composites. |
| 资助项目 | National Natural Science Foundation of China[52071318] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001422050400001 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Xu, Jingjun |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Aerosp Res Inst Mat & Proc Technol, Sci & Technol Adv Funct Composite Lab, Beijing 100076, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Wenting,Xu, Jingjun,Ma, Ke,et al. Oxidation Behavior at 1000-1300 °C in air of Ti2AlC-20TiB2 Synthesized by in-situ Reaction/Hot Pressing[J]. JOURNAL OF INORGANIC MATERIALS,2025,40(1):31-38. |
| APA | Wang, Wenting,Xu, Jingjun,Ma, Ke,Li, Meishuan,Li, Xingchao,&Li, Tongqi.(2025).Oxidation Behavior at 1000-1300 °C in air of Ti2AlC-20TiB2 Synthesized by in-situ Reaction/Hot Pressing.JOURNAL OF INORGANIC MATERIALS,40(1),31-38. |
| MLA | Wang, Wenting,et al."Oxidation Behavior at 1000-1300 °C in air of Ti2AlC-20TiB2 Synthesized by in-situ Reaction/Hot Pressing".JOURNAL OF INORGANIC MATERIALS 40.1(2025):31-38. |
入库方式： OAI收割
来源：金属研究所
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