Atomic-scale microstructure of Hf2Al4C5 ceramic synthesized by spark plasma sintering
文献类型：期刊论文
| 作者 | Song, Kepeng ; Zhang, Hui ; Du, Kui ; Qi, Dongqing ; Chen, Houwen ; Wang, Xiaohui ; Nie, Jian-Feng ; Ye, Hengqiang |
| 刊名 | JOURNAL OF THE AMERICAN CERAMIC SOCIETY
 |
| 出版日期 | 2017-07-01 |
| 卷号 | 100期号:7页码:3208-3216 |
| 关键词 | microstructure spark plasma sintering stacking fault transition metal ternary compounds transmission electron microscopy |
| ISSN号 | 0002-7820 |
| 通讯作者 | Du, K (reprint author), Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang, Peoples R China. |
| 中文摘要 | A layered ternary carbide phase, Hf2Al4C5, was successfully synthesized by spark plasma sintering method. Detailed (atomic-scale) microstructure of the ternary carbide was investigated by aberration-corrected scanning transmission electron microscopy and atomic-resolution energy dispersive X-ray spectroscopy. Hf2Al4C5 crystal grains have elongated morphologies and are characterized with a high density of stacking faults with the insertion of additional (Al4C3) or (HfC) units. Periodic stacking of Hf2Al4C5 and HfAl4C4 units along the [0001] direction is frequently observed in the Hf2Al4C5 crystal, and it leads to the formation of Hf4Al12C13, which consists of 2/3 Hf2Al4C5 unit cell and 1/2 HfAl4C4 unit cell. In addition, Z-shaped planar defects are observed in Hf2Al4C5 grains, and the formation mechanism of the Z-shaped defects was proposed as blocking effects of the Hf diffusion in Al4C3 by pre-existing {1-101} pyramidal stacking faults in Al4C3. |
| 学科主题 | Materials Science, Ceramics |
| 收录类别 | SCI |
| 资助信息 | National Natural Science Foundation of China [51371177, 51521091, 51390473] |
| 语种 | 英语 |
| 公开日期 | 2017-08-17 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/78061]  |
| 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 | Song, Kepeng,Zhang, Hui,Du, Kui,et al. Atomic-scale microstructure of Hf2Al4C5 ceramic synthesized by spark plasma sintering[J]. JOURNAL OF THE AMERICAN CERAMIC SOCIETY,2017,100(7):3208-3216. |
| APA | Song, Kepeng.,Zhang, Hui.,Du, Kui.,Qi, Dongqing.,Chen, Houwen.,...&Ye, Hengqiang.(2017).Atomic-scale microstructure of Hf2Al4C5 ceramic synthesized by spark plasma sintering.JOURNAL OF THE AMERICAN CERAMIC SOCIETY,100(7),3208-3216. |
| MLA | Song, Kepeng,et al."Atomic-scale microstructure of Hf2Al4C5 ceramic synthesized by spark plasma sintering".JOURNAL OF THE AMERICAN CERAMIC SOCIETY 100.7(2017):3208-3216. |
入库方式： OAI收割
来源：金属研究所
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