Crystal nucleation induced by magnetic ordering in undercooled melts

被引：11
|
作者：
Holland-Moritz, Dirk [1 ]
Herlach, Dieter M.
Spaepen, Frans
机构：
[1] DLR, Inst Raumsimulat, D-51170 Cologne, Germany
[2] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
来源：
SUPERLATTICES AND MICROSTRUCTURES | 2007年 / 41卷 / 2-3期
基金：
美国国家航空航天局;
关键词：
undercooled melts; nucleation; magnetism;
D O I：
10.1016/j.spmi.2006.10.005
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Undercooling experiments on Co-Pd melts have shown that the nucleation behaviour of these melts is influenced by the onset of magnetic ordering, as the temperature of the liquid approaches the Curie temperature. These experimental findings on the maximum undercoolability of Co-Pd melts can be described, if the classical nucleation model is extended by a magnetic contribution to the Gibbs free energy difference between the liquid and solid phase. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：196 / 203
页数：8
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