Thermal expansion anomaly and spontaneous magnetostriction of Dy2AlFe14Mn2 compound

被引：0
|
作者：
王海云 [1 ]
赵淼 [2 ]
高艳 [2 ]
周严 [1 ]
傅斌 [2 ]
严达利 [2 ]
机构：
[1] School of Materials Science and Technology,Hebei University of Technology
[2] Department of Physics,Tianjin Normal University
来源：
Transactions of Nonferrous Metals Society of China | 2006年 / 06期
基金：
中国国家自然科学基金;
关键词：
Dy2AlFe14Mn2; compound; thermal expansion; spontaneous magnetostriction; negative thermal expansion;
D O I：
暂无
中图分类号：
TB34 [功能材料];
学科分类号：
080501 ;
摘要：
The structure and magnetic properties of Dy2AlFe14Mn2 compound were investigated by X-ray diffractometry and magnetization measurements.Dy2AlFe14Mn2 compound has a hexagonal Th2Ni17-type structure.Zero thermal expansion and negative thermal expansion were found in Dy2AlFe14Mn2 compound in the temperature range from 184 to 264 K,and from 264 to 383 K,respectively,by X-ray dilatometry.The spontaneous magnetostrictive deformations from 104 to 400 K were calculated.The results show that the spontaneous volume magnetostrictive deformation increases firstly with increasing temperature,and then decreases with further increasing temperature.
引用
收藏
页码：1331 / 1334
页数：4
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