کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1623047 1516407 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of Nb and C additions on the crystallization behavior, microstructure and magnetic properties of B-rich nanocrystalline Nd–Fe–B ribbons
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effects of Nb and C additions on the crystallization behavior, microstructure and magnetic properties of B-rich nanocrystalline Nd–Fe–B ribbons
چکیده انگلیسی

The effects of Nb and C additions on the crystallization behavior, microstructure and magnetic properties of B-rich Nd9.4Fe79.6−xNbxB11−yCy (x = 0, 2, and 4; y = 0, 0.5, and 1.5) alloy ribbons have been investigated. The results show that Nb and C additions change the crystallization behavior of Nd9.4Fe79.6B11, avoid the formation of metastable Nd2Fe23B3 phase, leading to the simultaneously precipitation of α-Fe and Nd2Fe14B phases. The results also show that Nb and C additions suppress the formation and growth of the soft α-Fe phases, leading to the presence of a large amount of Nd2Fe14B phases. Nb and C additions also refine the structure, and thus increase the exchange coupling interaction between the soft and hard phases. Excellent magnetic properties of Br = 0.85 T, iHc = 1106 kA/m, and (BH)max = 117 kJ/m3 have been achieved in Nd9.4Fe75.6Nb4B10.5C0.5 alloy ribbons.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 470, Issues 1–2, 20 February 2009, Pages 141–144
نویسندگان
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