Phase formation and magnetocaloric effect in (Pr,Nd)-Fe alloys prepared by rapidly quenched method

被引：0

作者：

Dan Nguyen ^{[1
,2
]}

Ha Nguyen ^{[2
,3
]}

An Nguyen ^{[3
]}

Yen Nguyen ^{[1
,2
]}

Thanh Pham ^{[1
,2
]}

Koledov, Victor ^{[4
]}

Kamantsev, Alexander ^{[4
]}

Mashirov, Alexey ^{[4
]}

Thanh Tran ^{[1
,5
]}

Kieu, Hau ^{[5
]}

Yu, Seong ^{[5
]}

机构：

[1] Vietnam Acad Sci & Technol, Inst Mat Sci, 18 Hoang Quoc Viet, Hanoi, Vietnam

[2] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam

[3] Hong Duc Univ, 565 Quang Trung, Dong Ve, Thanh Hoa, Vietnam

[4] RAS, Kotelnikov Inst Radioengn & Elect, Moscow, Russia

[5] Chungbuk Natl Univ, Dept Phys, Cheongju 361763, South Korea

来源：

MOSCOW INTERNATIONAL SYMPOSIUM ON MAGNETISM (MISM 2017) | 2018年 / 185卷

基金：

俄罗斯基础研究基金会;

关键词：

MAGNETIC REFRIGERATION; R2FE17; R; ND2FE17; PR2FE17;

D O I：

10.1051/epjconf/201818505002

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work, Pr2-xNdxFe17 (x = 0 - 2) ribbons with thickness of about 15 mu m were prepared by melt-spinning method. The alloy ribbons were then annealed at different temperatures (900- 1100 degrees C) for various time (0.25 - 2 h). The formation of the (Pr,Nd)2fei7 (2:17) crystalline phase in the alloys strongly depends on the Pr/Nd ratio and annealing conditions. Annealing time for the completed formation of the 2:17 phase in the rapidly quenched ribbons is greatly reduced in comparison with that of bulk alloys. Curie temperature, T-C, of the alloys can be controlled in room temperature region by changing Pr/Nd ratio. Maximum magnetic entropy change (vertical bar Delta S-m vertical bar(max)) and full width at haft the maximum peak (FWHM) of the magnetic entropy change of the alloys were respectively found to be larger than 1.5 J.kg(-1)K(-1) and 40 K in room temperature region with magetic field change Delta H = 12 kOe.

引用

页数：4

共 37 条

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