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Effect of Ce on phase formation and magnetic properties of (Nd–Pr)2.28Fe13.58B1.14 melt-spun ribbons

التفاصيل البيبلوغرافية
العنوان: Effect of Ce on phase formation and magnetic properties of (Nd–Pr)2.28Fe13.58B1.14 melt-spun ribbons
المؤلفون: M H Rong, J Ma, Q R Yao, J Wang, G H Rao, H Y Zhou, Z P Jin
المصدر: Materials Research Express, Vol 7, Iss 7, p 076101 (2020)
بيانات النشر: IOP Publishing, 2020.
سنة النشر: 2020
المجموعة: LCC:Materials of engineering and construction. Mechanics of materials
LCC:Chemical technology
مصطلحات موضوعية: Nd–Ce–Pr–Fe–B, phase formation, magnetic property, melt-spinning, Materials of engineering and construction. Mechanics of materials, TA401-492, Chemical technology, TP1-1185
الوصف: The phase formation of the (Nd _0.70 Pr _0.30−x Ce _x ) _2.28 Fe _13.58 B _1.14 (x = 0.10, 0.15, and 0.20; hereafter defined as Pr _20 Ce _10 , Pr _15 Ce _15 and Pr _10 Ce _20 , respectively) and (Nd _0.60 Pr _0.40−y Ce _y ) _2.28 Fe _13.58 B _1.14 (y = 0.10, 0.20, and 0.30; hereafter defined as Pr _30 Ce _10 , Pr _20 Ce _20 and Pr _10 Ce _30 , respectively) alloys that were prepared via the arc-melting method was investigated experimentally. The x-ray diffraction results revealed that all alloys annealed at 1173 K for 360 h consisted of a (NdPrCe) _2 Fe _14 B main phase with a tetragonal Nd _2 Fe _14 B-typed structure (space group P4 _2 /mnm) and an α -Fe minor phase, except for the Pr _10 Ce _30 alloy, which contained an additional CeFe _2 phase. The magnetic properties of the (Nd _0.70 Pr _0.30−x Ce _x ) _2.28 Fe _13.58 B _1.14 and (Nd _0.60 Pr _0.40−y Ce _y ) _2.28 Fe _13.58 B _1.14 ribbons that were prepared by melt spinning were examined. The remanence (B _r ) and maximum magnetic energy product ((BH) _max ) of the (Nd _0.70 Pr _0.30−x Ce _x ) _2.28 Fe _13.58 B _1.14 ribbons increased first and then decreased, whereas the coercivity (H _cj ) of the ribbons increased with an increase in Ce content. The B _r and (BH) _max of the (Nd _0.60 Pr _0.60−y Ce _y ) _2.28 Fe _13.58 B _1.14 ribbons increased, whereas the H _cj of the ribbons decreased gradually with an increase in Ce content. This changed behavior of magnetic properties is attributed to the variation of volume fraction of the α -Fe phase and different phase formations in the melt-spun ribbons. The Curie temperatures (T _c ) of all ribbons decreased slightly with Ce substitution, which results from the lower Curie temperatures of Pr _2 Fe _14 B and Ce _2 Fe _14 B. The Pr _10 Ce _30 ribbon with a higher Ce content exhibited optimal magnetic properties (B _r = 9.71 kGs, H _cj = 13.09 kOe, (BH) _max = 18.78 MGOe), which indicates that suitable magnetic properties of the Nd–Pr–Ce–Fe–B melt-spun ribbons can be achieved by alloy-composition and phase-formation design.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2053-1591
Relation: https://doaj.org/toc/2053-1591
DOI: 10.1088/2053-1591/ab9ede
URL الوصول: https://doaj.org/article/dbb0807e7a06474d87bbd1aca40c2d0e
رقم الأكسشن: edsdoj.bb0807e7a06474d87bbd1aca40c2d0e
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20531591
DOI:10.1088/2053-1591/ab9ede