| Al70Co15Tb5Ni10合金中准晶相关相的高压研究 |
| |
| 引用本文： | 禹日成,许大鹏.Al70Co15Tb5Ni10合金中准晶相关相的高压研究[J].高压物理学报,1993,7(3):208-213. |
| |
| 作者姓名： | 禹日成 许大鹏 |
| |
| 作者单位： | 吉林大学物理系固体物理教研室，吉林大学物理系固体物理教研室，吉林大学物理系固体物理教研室，吉林大学物理系固体物理教研室 长春 130023，长春 130023，长春 130023 中国科学院国际材料物理中心，沈阳 110015 中国高等科学技术中心(世界实验室)，凝聚态和辐射物理分中心，北京8730信箱，长春 130023 |
| |
| 基金项目： | 国家自然科学基金，中国科学院北京电子显微镜实验室的资助 |
| |
| 摘 要： | 使用静高压熔态淬火方法，在Al70Co15Tb5Ni10合金中截获到迄今为止晶胞参数最大的两个十次准晶的Penrose-Tiling相关相。其晶胞参数分别为：简单正交晶体a=6.11 nm，b=0.4 nm，c=8.4 nm；底心正交晶体a=6.11 nm，b=0.4 nm，c=8.4 nm。其晶体结构和晶胞参数与目前理论上的预言基本吻合。
|
| 关 键 词： | 准晶相关相 AlCoTbNi合金 静高压 熔态淬火 |
| 收稿时间： | 1992-12-30; |
A STUDY ON NEW ORTHORHOMBIC APPROXIMANTS OF THE Al_(70)Co_(15)Tb_5Ni_(10) DECAGONAL QUASICRYSTAL |
| |
| Yu Richeng,Xu Dapeng,Su Wenhui,Pang Yanxin.A STUDY ON NEW ORTHORHOMBIC APPROXIMANTS OF THE Al_(70)Co_(15)Tb_5Ni_(10) DECAGONAL QUASICRYSTAL[J].Chinese Journal of High Pressure Physics,1993,7(3):208-213. |
| |
| Authors: | Yu Richeng Xu Dapeng Su Wenhui Pang Yanxin |
| |
| Institution: | 1. Department of Physics, Jilin University, Changchun 130023, China;2. International Center for Materials Physics, Academia Sinica, Shenyang 110015, China;3. Center for Condensed Matter and Radiation Physics, CCAST (World Laboratory), Beijing 100080, China |
| |
| Abstract: | Two new orthorhombic approximants with the largest until cell observed up to now were found in the Al70Co15Tb5Ni10 decagonal quasi-crystal, which were prepared by quenching (102 ℃/s) the melt state (1 700 ℃) under high static pressure (7.0 GPa). The lattice parameters of the orthorhombic approximant are the same (a=6.1 nm, b=0.4 nm, c=8.4 nm), but the structure of the first phase is P-type and that of the second phase is a B-type. Their structures and lattice parameters are in accordance with that of the present theoretical predictions. |
| |
| Keywords: | approximant of quasicrystal AlCoTbNi alloy high-static pressure quenching from melt state |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《高压物理学报》浏览原始摘要信息 |
| 点击此处可从《高压物理学报》下载免费的PDF全文 |
