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Microstructure and Magnetic Properties of (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 (RE=La, Ce, Y) Alloys

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Abstract:

In this work, the microstructure, crystal structure and magnetic properties of (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 (RE=La, Ce, Y) alloys prepared by arc-melting were investigated experimentally. The experimental results show that all alloys annealed at 1173 K for 360 hrs contain the isotropic Nd2Fe14B structure phase. The coercivities (Hc) of (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 (RE=La, Ce, Y) melt-spun ribbons are 12.3 kOe, 13.2 kOe, 8.5 kOe, and the Curie temperatures (Tc) of annealed (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 (RE=La, Ce, Y) alloys are 569 K, 552 K and 576 K, respectively. Meanwhile, the remanences (Br) of (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 (RE=La, Ce, Y) melt-spun ribbons are about 67 emu/g, 74 emu/g and 72 emu/g, respectively. It was indicated that the coercivity, remanence and Curie temperatures of (Nd0.7Pr0.15RE0.15)2.28Fe13.58B1.14 alloys are dependent on light rare earth elements.

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Periodical:

Advanced Materials Research (Volume 1142)

Pages:

57-61

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1142.57

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Online since:

January 2017

Authors:

Jie Ma, Jiang Wang, Mao Hua Rong, Guang Hui Rao, Huai Ying Zhou

Keywords:

Curie Temperature, Nd-Fe-B, Permanent Magnets

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