HREM STUDY AND STRUCTURAL MODELS OF THE (1/1,2/1)-ORTHORHOMBIC AND (2/1,1/1)-ORTHORHOMBIC APPROXIMANTS IN AN AL70CO15NI10TB5 ALLOY
文献类型：期刊论文
| 作者 | LI, XZ ; YU, RC ; ZHANG, Z ; KUO, KH |
| 刊名 | PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES
 |
| 出版日期 | 1995 |
| 卷号 | 71期号:2页码:261 |
| 关键词 | DECAGONAL QUASI-CRYSTAL PHASE PATTERNS AL3MN |
| ISSN号 | 0141-8637 |
| 通讯作者 | LI, XZ: CHINESE ACAD SCI,BEIJING LAB ELECTRON MICROSCOPY,POB 2724,BEIJING 100080,PEOPLES R CHINA. |
| 中文摘要 | The (010) layers of the (1/1,2/1) and (2/1,1/1) approximants (these rational ratios of two consecutive Fibonacci numbers were used to substitute for the irrational tau in two orthogonal quasiperiodic directions) of the Al70Co15Ni10Tb5 decagonal quasicrystal were found to consist of elongated hexagonal subunits with an edge length of 0.76 nm in different tessellations by means of high-resolution electron microscopy (HREM). This explains why these two approximants inter-grow easily with a fixed orientational relationship and domains occur abundantly in them. The primitive orthorhombic unit cell of the (1/1,2/1) approximant, a = 1.26, b = 1.60 and c = 2.30 nm, consists of two differently oriented hexagons. Its structure is similar to that of Al3Pd reported recently by Matsuo and Hiraga (1994). On the other hand, the base-centred orthorhombic unit cell of the related (2/1,1/1) approximant, a = 2.00, b = 1.60, c = 1.38 nm, consists of two hexagons of a single orientation. Its pentagonal and decagonal layer structure, derived from that of Al3Pd or the (1/1,2/1) approximant, consists of subunits similar to those that exist in a decagonal quasicrystal. The simulated images based on these structures compared favourably with the observed [010] HREM images of these two approximants. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2013-09-17 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/39506]  |
| 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 | LI, XZ,YU, RC,ZHANG, Z,et al. HREM STUDY AND STRUCTURAL MODELS OF THE (1/1,2/1)-ORTHORHOMBIC AND (2/1,1/1)-ORTHORHOMBIC APPROXIMANTS IN AN AL70CO15NI10TB5 ALLOY[J]. PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES,1995,71(2):261. |
| APA | LI, XZ,YU, RC,ZHANG, Z,&KUO, KH.(1995).HREM STUDY AND STRUCTURAL MODELS OF THE (1/1,2/1)-ORTHORHOMBIC AND (2/1,1/1)-ORTHORHOMBIC APPROXIMANTS IN AN AL70CO15NI10TB5 ALLOY.PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES,71(2),261. |
| MLA | LI, XZ,et al."HREM STUDY AND STRUCTURAL MODELS OF THE (1/1,2/1)-ORTHORHOMBIC AND (2/1,1/1)-ORTHORHOMBIC APPROXIMANTS IN AN AL70CO15NI10TB5 ALLOY".PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES 71.2(1995):261. |
入库方式： OAI收割
来源：物理研究所
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