New stable icosahedral quasicrystal in the system Al-Cu-Co-Fe

被引：6

作者：

Klyueva, Maria ^{[1
]}

Shulyatev, Dmitry ^{[1
]}

Andreev, Nikolay ^{[1
]}

Tabachkova, Natalia ^{[1
,2
]}

Sviridova, Tatiana ^{[1
]}

Suslov, Alexey ^{[3
]}

机构：

[1] Natl Univ Sci & Technol MISIS, Leninskii Pr 4, Moscow 119991, Russia

[2] Russian Acad Sci, Prokhorov Gen Phys Inst, Vavilov Str 38, Moscow 119991, Russia

[3] Natl High Magnet Field Lab, Tallahassee, FL 32310 USA

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 801卷

基金：

美国国家科学基金会; 俄罗斯科学基金会;

关键词：

icosahedral quasicrystal; Single-grain quasicrystals; Electronic transport; FORMING ALLOY SYSTEM; TRANSPORT-PROPERTIES; PHASE-DIAGRAM; GROWTH; ALUMINUM;

D O I：

10.1016/j.jallcom.2019.06.056

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Based on the conceptual Al-Cu-(Fe + Co) phase diagram we found an optimal initial composition and developed a method to grow Al-Cu-Fe-Co single-grain quasicrystals. Our original two-stage cooling process includes (i) fast cooling of the melt down to the quasicrystalline single phase region with rate of similar to 165 K/h to prevent growing of nonquasicrystalline phases in the melt, and (ii) slow cooling down with rate of similar to 2-3 K/h to grow large (mm-size) single-grain quasicrystals. As a result a new stable quaternary Al-based icosahedral quasicrystal has been obtained. The chemical composition of the grown quasicrystal determined by both the energy dispersive X-ray analysis and inductively coupled plasma mass spectrometry was Al64.36Cu22.20CO3.05Fe10.39. Powder XRD and selected area electron diffraction were carried out for the phase identification and confirmed the icosahedral structure. The temperature dependencies of the electrical resistance measured on the oriented samples in the temperature range of 1.4 K-300 K is typical for icosahedral quasicrystals. (C) 2019 Elsevier B.V. All rights reserved.

引用

页码：473 / 477

页数：5

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