Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering
文献类型：期刊论文
| 作者 | Fu, Le1; Wang, Bohan2; Jiang, Fuqing3; Yu, Wenjun1; Xia, Wei4 |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2024-07-19 |
| 页码 | 16 |
| 关键词 | dual-phase nanocomposite entropy engineering high-entropy medium-entropy thermal stability |
| ISSN号 | 0002-7820 |
| DOI | 10.1111/jace.20003 |
| 通讯作者 | Fu, Le(fule2019@csu.edu.cn) |
| 英文摘要 | Solid-state reaction (SSR) is frequently used to fabricate bulk high-entropy ceramics (HECs). However, a high temperature and a long dwelling time are typically required to allow the occurrence of SSR. Meanwhile, conventional HECs were typically composed of single-phase solid solution with micrograins. It is of great interest to develop nanocrystalline dual-phase HECs under mild conditions. Here, we fabricated entropy-mediated crystalline-amorphous dual-phase ceramic nanocomposites, and the fabrication process showed significantly higher energy and time efficiency than the conventional SSR. The nanocomposites were composed of entropy-mediated nanoparticles (EM-NPs) embedded in an amorphous SiO2 matrix. The constituent elements were homogeneously distributed in the EM-NPs at the atomic level. The EM-NPs were dislocations-free but with lattice strain, and they showed a strong coarsening tendency during annealing. The nanocomposites showed a significant solid solution hardening effect. The reported results would provide useful guidance to fabricate nanocrystalline HECs with crystalline-amorphous dual-phase microstructure. Formation mechanism of traditional single-phase HECs and the new crystalline-amorphous dual-phase HEC. image |
| 资助项目 | National Natural Science Foundation of China[52102084] ; Natural Science Foundation of Hunan Province[2022JJ30718] |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001272224700001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province |
| 源URL |  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Fu, Le |
| 作者单位 | 1.Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China 2.Tsinghua Univ, Sch Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang, Peoples R China 4.Uppsala Univ, Dept Mat Sci & Engn, Appl Mat Sci, Uppsala, Sweden |
| 推荐引用方式 GB/T 7714 | Fu, Le,Wang, Bohan,Jiang, Fuqing,et al. Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2024:16. |
| APA | Fu, Le,Wang, Bohan,Jiang, Fuqing,Yu, Wenjun,&Xia, Wei.(2024).Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,16. |
| MLA | Fu, Le,et al."Crystalline-amorphous dual-phase ceramic nanocomposites regulated by entropy engineering".JOURNAL OF THE AMERICAN CERAMIC SOCIETY (2024):16. |
入库方式： OAI收割
来源：金属研究所
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