Magnetic properties and magnetocaloric effect of FeCrNbYB metallic glasses with high glass-forming ability

被引：22

作者：

Zhang, Mingxiao ^{[1
,2
]}

Li, Jiawei ^{[1
,2
]}

Kong, Fanli ^{[3
]}

Liu, Jian ^{[1
,2
]}

机构：

[1] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Key Lab Magnet Mat & Devices, Ningbo 315201, Zhejiang, Peoples R China

[2] Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Prov Key Lab Magnet Mat & Applicat Techn, Ningbo 315201, Zhejiang, Peoples R China

[3] Josai Int Univ, Int Inst Green Mat, Togane 2838555, Japan

来源：

INTERMETALLICS | 2015年 / 59卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Metallic glasses; Glass forming ability; Magnetic properties; Thermal properties; ROOM-TEMPERATURE; NB; REFRIGERATION; SI; TRANSITIONS;

D O I：

10.1016/j.intermet.2014.12.005

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：

The influences of Cr addition on the Curie temperature (T-C), glass-forming ability (GFA), and magnetocaloric effect were investigated in FeCrNbYB metallic glasses. It was found that the addition of Cr element slightly decreases the GFA and saturation magnetization, whereas effectively modulates T-C. By the method of copper mold casting, bulk metallic glasses (BMGs) with critical diameters up to 5 mm can be obtained in Fe68-xCrxNb4Y6B22 (x = 2-6) alloys. The resulting metallic glasses exhibit T-C of 271-367 K and excellent magnetocaloric properties, including magnetic entropy change of 0.76-1.05 J/kg K, and refrigerant capacity of 83-93 J/kg under a low field change of 1.5 T. In addition, they exhibit a wide supercooled liquid region of 116-135 K. The successful synthesis of the FeCrNbYB BMGs with near room-temperature magnetocaloric properties is encouraging for the future development of Fe-based BMGs as a new magnetic refrigerant in magnetic cooling system. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：18 / 22

页数：5

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