静高压下Al80Mn14Si6合金准晶相形成的研究

楚树成; 许大鹏; 苏文辉; 张强

doi:10.11858/gywlxb.1990.02.010

静高压下Al80Mn14Si6合金准晶相形成的研究

doi: 10.11858/gywlxb.1990.02.010

1.
吉林大学固体物理教研室，吉林长春 130023；
2.
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 100080

详细信息

通讯作者:
楚树成

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出版历程
- 收稿日期: 1988-09-23
- 修回日期: 1990-02-25
- 发布日期: 1990-06-05

A Study on the Formation of Quasi-Crystal Al80Mn14Si6 under High Static Pressure

1.
Group of Rare Earth Solid State Physics, Jilin University, Changchun 130023, China;
2.
Center for Condensed Matter and Radiation Physics, CCAST (World Laboratory), Beijing 100080, China

More Information

Corresponding author: CHU Shu-Cheng

摘要

摘要: 本文首次研究了Al80Mn14Si6合金在静高压下准晶相得形成。利用静高压熔态淬火方法，在压力2.8和3.1 GPa下得到淬火的Al-Mn-Si样品。电子和X射线衍射实验表明，高压淬火样品中含有准晶二十面体相和非晶相。X射线衍射实验还表明，高压淬火样品经350 ℃退火一小时基本上没有发生变化；而经过500 ℃退火一小时后，准晶相晶化为-Al73Si10Mn17相。另外，电子衍射实验表明，高压淬火后样品中还存在其它中间亚稳相。本文还讨论了静高压熔态淬火方法的适用性。
- Al80Mn14Si6 /
- 静高压 /
- 熔态淬火 /
- 准晶体 /
- 亚稳相形成
Abstract: By using the method of quenching in fusing state under high static pressure (MQFSHP), the samples of Al80Mn14Si6 alloy rapidly quenched were gained under pressure of 2.8 and 3.1 GPa respectively. The quenched samples were examined by X-ray diffraction and electron diffraction. Results show that they contain icosahedra phase, non-crystal, intermediate metastable phase. After the quenched samples were heated to 350 ℃ maintained for 1 h, there occurred no detectable crystallization of Ⅰ-phase in them, but for the case of 500 ℃/h, the samples crystallized completely into a stable -Al73Si10Mn17. In this paper, the applicability of MQFSHP to the quasi-crystal formation has also been discussed.
- Al80Mn14Si6 /
- high-static-pressure /
- quenching in fusing state /
- quasi-crystal /
- metastable phase formation