Structural model of the orthorhombic non-Fibonacci approximant in the Al12Fe2Cr alloy
文献类型：期刊论文
| 作者 | Sui, HX ; Liao, XZ ; Kuo, KH ; Zou, XD |
| 刊名 | ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE
 |
| 出版日期 | 1997 |
| 卷号 | 53页码:587 |
| 关键词 | DECAGONAL QUASI-CRYSTAL RESOLUTION ELECTRON-MICROSCOPY X-RAY-DIFFRACTION AL-CR SYSTEM CLOSE RELATIONSHIP PHASE AL3MN QUASICRYSTALS |
| ISSN号 | 0108-7681 |
| 通讯作者 | Sui, HX (reprint author), CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,POB 2724,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | Al-5.103(Fe,Cr), orthorhombic, Imm2, a=12.34, b=12.41, c=30.71 Angstrom, V=4701 Angstrom(3), atoms/cell=305 (average), D-x similar or equal to 3.4 g cm(-3). A structural model of the non-Fibonacci approximant O-AlFeCr with composition Al-5.103(Fe,Cr) found in an Al12Fe2Cr alloy has been derived from its high-resolution electron microscopy images and the structure of the hexagonal mu-Al4Mn [Shoemaker, Keszler & Shoemaker (1989). Acta Cryst. B45, 13-20], being isostructural to mu-Al4Cr. Among the 14 unique positions of transition metal (TM) atoms, 13 are icosahedrally coordinated: five of these icosahedra interpenetrate into each other, forming icosahedral chains along [010], and the remaining eight icosahedra with their twofold axis parallel to this axis. This structural model describes a (010) layer structure with a sequence (PFP)-F-m((PFP)-F-m)(I), where a flat layer F (a mirror plane) is sandwiched between two puckered P and P-m layers, and ((PFP)-F-m)(I) is related to (PFP)-F-m through a body-centred translation. The interatomic distances are 2.51-2.74 Angstrom for TM-TM, 2.38-2.99 for TM-Al and 2.41-3.18 Angstrom for Al-Al. Simulated images and electron diffraction patterns calculated based on this structural model are comparable with the experimentally observed results. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/53314]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Sui, HX,Liao, XZ,Kuo, KH,et al. Structural model of the orthorhombic non-Fibonacci approximant in the Al12Fe2Cr alloy[J]. ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE,1997,53:587. |
| APA | Sui, HX,Liao, XZ,Kuo, KH,&Zou, XD.(1997).Structural model of the orthorhombic non-Fibonacci approximant in the Al12Fe2Cr alloy.ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE,53,587. |
| MLA | Sui, HX,et al."Structural model of the orthorhombic non-Fibonacci approximant in the Al12Fe2Cr alloy".ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE 53(1997):587. |
入库方式： OAI收割
来源：物理研究所
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