Thermodynamic properties of Al-Mn, Al-Cu, and Al-Fe-Cu melts and their relations to liquid and quasicrystal structure

被引：7
|
作者：
Zaitsev, A. I. [1 ]
Zaitseva, N. E. [1 ]
Shimko, R. Yu [2 ]
Arutyunyan, N. A. [2 ]
Dunaev, S. F. [2 ]
Kraposhin, V. S. [3 ]
Lam, Ha Thanh [3 ]
机构：
[1] IP Bardin Cent Ferrous Met Res Inst, Moscow 107005, Russia
[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow, Russia
[3] Bauman Moscow State Tech Univ, Moscow, Russia
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2008年 / 20卷 / 11期
关键词：
D O I：
10.1088/0953-8984/20/11/114121
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Thermodynamic properties of molten Al-Mn, Al-Cu and Al-Fe-Cu alloys in a wide temperature range of 1123-1878 K and the whole range of concentrations have been studied using the integral effusion method and Knudsen mass spectrometry. Thermodynamic functions of melts were described by the associated solution model. The possibility of icosahedral quasicrystal (i-QC) precipitation from liquid Al-Mn and Al-Cu-Fe alloys was found to be a consequence of the existence in liquid associates (clusters). A geometric model is suggested for the structure of associates in liquid.
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页数：4
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