کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606284 | 1516223 | 2016 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural and magnetocaloric properties of (Mn,Fe)2(P,Si) materials with added nitrogen
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Amongst magnetic materials that exhibit a giant magnetocaloric effect near room temperature, the (Mn,Fe)2(P,Si) system is one of the most promising candidates for magnetic refrigeration. Although the (Mn,Fe)2(P,Si) materials hold many advantages, controlling the magnetic entropy change ÎSm, the adiabatic temperature change ÎTad, the thermal hysteresis and the mechanical stability across the ferromagnetic transition requires a delicate tuning of the composition. This work investigates the addition of nitrogen, as an interstitial or substitutional element, as a new parameter to tune the properties of (Mn,Fe)2(P,Si) materials. We found that the nitrogen addition results in a decrease of the Curie temperature, consistent with the observed increase in the c/a ratio. The introduction of nitrogen in (Mn,Fe)2(P,Si) materials also results in a strong enhancement of the mechanical stability.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 670, 15 June 2016, Pages 123-127
Journal: Journal of Alloys and Compounds - Volume 670, 15 June 2016, Pages 123-127
نویسندگان
N.V. Thang, X.F. Miao, N.H. van Dijk, E. Brück,