Phase formation and magnetic properties of (Nd1−xYx)14Fe80B6 melt-spun ribbons

Autor: ShengXi Li, FeiLong Dai, JiuQi Shen, JunKang Huang, FaJia Huang, MaoHua Rong, QingRong Yao, Jiang Wang
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Materials Research Express, Vol 8, Iss 9, p 096102 (2021)
Druh dokumentu: article
ISSN: 2053-1591
DOI: 10.1088/2053-1591/ac2344
Popis: Phase formation and magnetic properties of (Nd _1−x Y _x ) _14 Fe _80 B _6 (x = 0.1–0.8) alloys were investigated experimentally by x-ray diffraction (XRD) and vibrating sample magnetometer (VSM). The phase structure analysis reveals that the as-cast (Nd _1−x Y _x ) _14 Fe _80 B _6 alloys were made of 2:14:1 phase with tetragonal Nd _2 Fe _14 B-tpyed structure, REFe _2 and α -Fe phases, while the melt-spun ribbons are composed of 2:14:1 phase and α -Fe Phase. Based on the magnetic measurements, the remanence (B _r ), the coercivity (H _cj ), the maximum magnetic energy product ((BH) _max ) and the Curie temperatures (T _c ) of (Nd _1−x Y _x ) _14 Fe _80 B _6 ribbons reduces gradually with increasing Y substitution. The relatively high coercivity (6.75 kOe) of (Nd _0.4 Y _0.6 ) _14 Fe _80 B _6 ribbon with high Y substitution was achieved, which indicates that good magnetic properties of Nd–Y–Fe–B ribbons would be obtained through the design of alloy composition and phase formation.
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