| Al6FeYb合金中十次准晶相关晶体相的高压形成 |
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| 引用本文： | 许大鹏,庞艳新,苏文辉.Al6FeYb合金中十次准晶相关晶体相的高压形成[J].高压物理学报,1996,10(4). |
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| 作者姓名： | 许大鹏 庞艳新 苏文辉 |
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| 作者单位： | 吉林大学物理系固体物理教研室，中国科学院国际材料物理中心，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 |
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| 摘 要： | 对掺稀土钇的铝铁合金（Al6FeYb）进行了静高压（4.8 GPa）熔态（1 400 ℃）淬火（冷却速率100 ℃/s）研究。使用透射电镜对样品中形成的微结构进行了观察。首次在该系统中发现了一个十次准晶相关晶体相。实验分析表明，该相为底心正交晶体相，电镜测得的晶胞参数为a＝0.716 nm，c＝2.195 nm。用已有的理论对该相的结构形成进行了讨论。
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| 关 键 词： | 准晶相关相 静高压 熔态淬火 Al6FeYb |
| 收稿时间： | 1996-04-01; |
THE FORMATION OF A NEW APPROXIMANT OF DECAGONAL QUASICRYSTAL IN Al 6FeYb ALLOY UNDER HIGH STATIC PRESSURE |
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| Xu Dapeng a,Pang Yanxin a,Su Wenhui a,b,c.THE FORMATION OF A NEW APPROXIMANT OF DECAGONAL QUASICRYSTAL IN Al 6FeYb ALLOY UNDER HIGH STATIC PRESSURE[J].Chinese Journal of High Pressure Physics,1996,10(4). |
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| Authors: | Xu Dapeng a Pang Yanxin a Su Wenhui a b c |
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| Institution: | 1. Research Group of Rare Earth Solid State Physics, 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 |
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| Abstract: | In the investigations, samples of Al6FeYb alloy were quenched with a cooling rate of 102 K/s from melting state (1 400 ℃) under high static pressure (4.8 GPa). A new crystalline approximant was observed and its structure was a B-type orthorhombic crystalline phase with the lattice parameters of a=0.716 nm, c=2.195 nm. The structure and formation of the crystalline approximant were discussed by the current theory. |
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| Keywords: | cystalline approximant high static pressure quench from melting state Al 6FeYb |
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