کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7994326 | 1516157 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2/Sn42Bi58 magnetocaloric composites prepared by low temperature hot pressing
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2/Sn42Bi58 magnetic refrigeration bulk composites were prepared by low temperature hot pressing (HP) technique at 138â¯Â°C. Sn-Bi eutectic alloy (Sn42Bi58) was used as binder. During the process of HP, the molten Sn42Bi58 alloy filled the gaps between the particles. Hence, the composites retained good magnetocaloric properties. The density of the composites gradually increased at larger HP pressure. The thermal conductivity and mechanical property of the composites also improved remarkably. By controlling the processing conditions, a series of La0.8Ce0.2(Fe0.95Co0.05)11.8Si1.2/Sn42Bi58 bulk composites with high entropy change values of 5.57-6.70â¯J/(kg·K) at 2â¯T, high thermal conductivity of 10.72-19.64â¯W/(m·K) and compressive strength of 189-303â¯MPa were obtained. The present results indicate that low temperature HP technique can be used in mass production of high performance magnetocaloric materials.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 737, 15 March 2018, Pages 568-574
Journal: Journal of Alloys and Compounds - Volume 737, 15 March 2018, Pages 568-574
نویسندگان
X.T. Dong, X.C. Zhong, D.R. Peng, J.H. Huang, H. Zhang, D.L. Jiao, Z.W. Liu, R.V. Ramanujan,