Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides
文献类型：期刊论文
| 作者 | Zhang, Hui8,9; Jin, Qianqian7; Hu, Tao2; Liu, Xiaochun3; Zhang, Zezhong4; Hu, Chunfeng5; Zhou, Yanchun6; Han, Yu10; Wang, Xiaohui1 |
| 刊名 | JOURNAL OF ADVANCED CERAMICS
 |
| 出版日期 | 2023-06-01 |
| 卷号 | 12期号:6页码:1288-1297 |
| 关键词 | electron-irradiation MAX phases carbides antisite defects crystal-structure engineering |
| ISSN号 | 2226-4108 |
| DOI | 10.26599/JAC.2023.9220757 |
| 通讯作者 | Zhang, Hui(hui.materials.zhang@gmail.com) ; Hu, Tao(thu@usts.edu.cn) ; Zhou, Yanchun(yczhou@alum.imr.ac.cn) |
| 英文摘要 | Twin boundaries have been exploited to stabilize ultrafine grains and improve mechanical properties of nanomaterials. The production of the twin boundaries and nanotwins is however prohibitively challenging in carbide ceramics. Using a scanning transmission electron microscope as a unique platform for atomic-scale structure engineering, we demonstrate that twin platelets could be produced in carbides by engineering antisite defects. The antisite defects at metal sites in various layered ternary carbides are collectively and controllably generated, and the metal elements are homogenized by electron irradiation, which transforms a twin-like lamellae into nanotwin platelets. Accompanying chemical homogenization, alpha-Ti3AlC2 transforms to unconventional beta-Ti3AlC2. The chemical homogeneity and the width of the twin platelets can be tuned by dose and energy of bombarding electrons. Chemically homogenized nanotwins can boost hardness by similar to 45%. Our results provide a new way to produce ultrathin (< 5 nm) nanotwin platelets in scientifically and technologically important carbide materials and showcase feasibility of defect engineering by an angstrom-sized electron probe. |
| WOS研究方向 | Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:001004930200012 |
| 出版者 | TSINGHUA UNIV PRESS |
| 源URL | [http://ir.imr.ac.cn/handle/321006/178246]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Zhang, Hui; Hu, Tao; Zhou, Yanchun |
| 作者单位 | 1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Suzhou Univ Sci & Technol, Sch Mat Sci & Engn, Inst Mat Sci & Devices, Suzhou 215009, Peoples R China 3.Changsha Univ Sci & Technol, Inst Met, Changsha 410004, Peoples R China 4.Univ Antwerp, Electron Microscopy Mat Res EMAT, B-2020 Antwerp, Belgium 5.Southwest Jiaotong Univ, Minist Educ, Sch Mat Sci & Engn, Key Lab Adv Technol Mat, Chengdu 610031, Peoples R China 6.Zhengzhou Univ, Sch Mat Sci Engn, Zhengzhou 450001, Peoples R China 7.Guangxi Univ Sci & Technol, Sch Elect Engn, Ctr Struct Adv Matter, Liuzhou 545006, Peoples R China 8.South China Univ Technol, Sch Emergent Soft Matter, Guangzhou 510640, Peoples R China 9.South China Univ Technol, Electron Microscopy Ctr, Guangzhou 510640, Peoples R China 10.King Abdullah Univ Sci & Technol, Phys Sci & Engn Div, Adv Membranes & Porous Mat Ctr, Thuwal 239556900, Saudi Arabia |
| 推荐引用方式 GB/T 7714 | Zhang, Hui,Jin, Qianqian,Hu, Tao,et al. Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides[J]. JOURNAL OF ADVANCED CERAMICS,2023,12(6):1288-1297. |
| APA | Zhang, Hui.,Jin, Qianqian.,Hu, Tao.,Liu, Xiaochun.,Zhang, Zezhong.,...&Wang, Xiaohui.(2023).Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides.JOURNAL OF ADVANCED CERAMICS,12(6),1288-1297. |
| MLA | Zhang, Hui,et al."Electron-irradiation-facilitated production of chemically homogenized nanotwins in nanolaminated carbides".JOURNAL OF ADVANCED CERAMICS 12.6(2023):1288-1297. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。