| MA制备GdSiGeDy合金系室温磁制冷性能研究 |
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| 引用本文： | 朱根松,周天瑞,杨斌.MA制备GdSiGeDy合金系室温磁制冷性能研究[J].哈尔滨工业大学学报,2009,41(1):257-259. |
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| 作者姓名： | 朱根松 周天瑞 杨斌 |
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| 作者单位： | 朱根松,ZHU Gen-song(南昌大学机电工程学院,南昌330029;江西理工大学应科院,江西赣州341000);周天瑞,ZHOU Tian-rui(南昌大学机电工程学院,南昌,330029);杨斌,YANG Bin(江西理工大学应科院,江西赣州,341000)
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| 基金项目： | 江西省科技厅工业攻关资助项目 |
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| 摘 要： | 机械合金化(MA)是一种材料固态非平衡加工新技术.本文主要探讨稀土元素Dy在机械合金化工艺条件下对磁制冷合金GdSiGe磁熵变的影响,发现用机械合金化制备的GdSiGeDy合金系室温磁制冷材料不仅有光滑的磁熵变曲线,而且研究表明,由于元素Dy的加入在磁熵变达到单质Gd的两倍情况下大量减少使用昂贵元素Ge的结果,具有明显经济效益.
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| 关 键 词： | 机械合金化 磁热效应 磁熵变 磁制冷材料 |
Room-temperature magnetic refrigeration properties of GdSiGeDy serial alloys made by mechanical alloying |
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| ZHU Gen-song,ZHOU Tian-rui,YANG Bin.Room-temperature magnetic refrigeration properties of GdSiGeDy serial alloys made by mechanical alloying[J].Journal of Harbin Institute of Technology,2009,41(1):257-259. |
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| Authors: | ZHU Gen-song ZHOU Tian-rui YANG Bin |
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| Affiliation: | 1.College of Mechanical and Electrical Engineering,Nanchang University,Nanchang 330029,China;2.College of Application and Science,Jiangxi University of Science and Technology,Ganzhou 341000,China) |
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| Abstract: | Mechanical alloying(MA) is an advanced material processing technology whose process is a forced imbalanced reaction,and is adopted gradually in many fields.Effects of RE element Dy on the magnetic entropy change of GdSiGe series alloys made by MA were researched.It is concluded that GdSiGeDy series alloys not only have smooth magnetic entropy change curve,but also diminish the use of expensive element Ge with attaining as two times as value of magnetic entropy change of element Gd because of adding the RE element Dy.It has obvious economic benefit. |
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| Keywords: | mechanical alloying magnet-calorie magnetic entropy change magnetic refrigeration material |
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