کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7951924 | 1513701 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-temperature phase transition behavior and magnetocaloric effect in a sub-rapidly solidified La-Fe-Si plate produced by centrifugal casting
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
شیمی مواد
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A sub-rapidly solidified LaFe11.6Si1.4 plate was fabricated directly from liquid by centrifugal casting method. The phase constitution, microstructure and magnetocaloric effect were investigated using backscatter scanning electron microscopy, X-ray diffraction, differential scanning calorimetry and physical property measurement system. When the plate was annealed at 1373Â K, Ï1 phase was formed by a solid-state peritectoid reaction. A first-order magnetic phase transition occurred in the vicinity of 188Â K, and the effective refrigeration capacities reached 203.5Â J/kg and 209.7Â J/kg in plates annealed for 1Â h and 3Â h, respectively, under a magnetic field change of 3Â T. It is suggested that centrifugal casting may become a new approach to prepare high-performance La-Fe-Si magnetocaloric plates for practical applications, which could largely accelerate the formation of Ï1 phase during high-temperature heat-treatment process due to refined and homogeneous honeycombed microstructure.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Science & Technology - Volume 34, Issue 8, August 2018, Pages 1337-1343
Journal: Journal of Materials Science & Technology - Volume 34, Issue 8, August 2018, Pages 1337-1343
نویسندگان
Zhishuai Xu, Yuting Dai, Yue Fang, Zhiping Luo, Ke Han, Changjiang Song, Qijie Zhai, Hongxing Zheng,