Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons

Pathak, Arjun K.; Khan, M.; Gschneidner, Jr., K. A.; McCallum, R. W.; Zhou, L.; Sun, K.; Kramer, M. J.; Pecharsky, V. K.

doi:10.1016/j.actamat.2015.09.049

Magnetic properties of bulk, and rapidly solidified nanostructured (Nd_1-xCe_x)₂Fe_14-yCo_yB ribbons

Journal Article · Fri Nov 06 00:00:00 EST 2015 · Acta Materialia

DOI:https://doi.org/10.1016/j.actamat.2015.09.049· OSTI ID:1227448

Pathak, Arjun K. ^[1]; Khan, M. ^[1]; Gschneidner, Jr., K. A. ^[1]; McCallum, R. W. ^[1]; Zhou, L. ^[1]; Sun, K. ^[1]; Kramer, M. J. ^[1]; Pecharsky, V. K. ^[1]

Iowa State Univ., Ames, IA (United States)

Magnetic properties of Ce and Co co-doped (Nd_1-xCe_x)₂Fe_14-yCo_yB compounds have been investigated both in bulk polycrystalline and rapidly solidified nanostructured ribbon forms. For certain Ce concentrations the materials exhibit spin re-orientation transitions below 140 K. The Curie temperatures, saturation magnetizations, and other magnetic properties relevant for applications as permanent magnets are controlled by Ce and Co substitutions for Nd and Fe, respectively. Most importantly, the results show that Ce, Co co-doped compounds are excellent replacements for several Dy-based high performance permanent magnets (dysprosium is one of the critical elements and is, therefore, in short supply). As a result, the high temperature (>375 K) magnetic properties for Nd–Ce–Fe–Co–B based alloys show promise not only as a replacement for Dy-doped Nd₂Fe₁₄B permanent magnets, but the new alloys also require significantly lower amounts of Nd, which too is the critical element that can be replaced by a more abundant Ce.

View Accepted Manuscript (DOE)

Research Organization:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Organization:: USDOE Advanced Research Projects Agency - Energy (ARPA-E)

Grant/Contract Number:: AC02-07CH11358

OSTI ID:: 1227448

Alternate ID(s):: OSTI ID: 1358701
OSTI ID: 22554342

Report Number(s):: IS-J--8781; PII: S1359645415007387

Journal Information:: Acta Materialia, Journal Name: Acta Materialia Journal Issue: C Vol. 103; ISSN 1359-6454

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (8)

Understanding the element segregation and phase separation in the Ce-substituted Nd-(Fe,Co)-B based alloys Zhao, L. Z.; Zhang, J. S.; Ahmed, G. Scientific Reports, Vol. 8, Issue 1 https://doi.org/10.1038/s41598-018-25230-0	journal	May 2018
Synergetic Effect of Dy2O3 and Ca Co-Dopants towards Enhanced Coercivity of Rare Earth Abundant RE-Fe-B Magnets Li, Yingfei; Tian, Na; Fan, Xiaodong Nanoscale Research Letters, Vol. 12, Issue 1 https://doi.org/10.1186/s11671-017-2407-z	journal	December 2017
Magnetic hardening of Nd-Ce-Fe-B films with high Ce concentration Ren, Hanyang; Abbas, Nadeem; Liu, Yang Scientific Reports, Vol. 8, Issue 1 https://doi.org/10.1038/s41598-018-29907-4	journal	August 2018
Manipulating Ce Valence in RE2Fe14B Tetragonal Compounds by La-Ce Co-doping: Resultant Crystallographic and Magnetic Anomaly Jin, Jiaying; Zhang, Yujing; Bai, Guohua Scientific Reports, Vol. 6, Issue 1 https://doi.org/10.1038/srep30194	journal	July 2016
Coercivity enhancement and mechanism in a high Ce-containing Nd–Ce–Fe–B film by the design of a diffusion layer Liu, Yang; Xia, Weixing; Liu, J. Ping Journal of Materials Chemistry C, Vol. 7, Issue 24 https://doi.org/10.1039/c9tc01279f	journal	January 2019
The corrosion mechanism of the sintered (Ce, Nd)-Fe-B magnets prepared by double main phase and single main phase approaches Shi, Xiaoning; Zhu, Minggang; Zhou, Dong AIP Advances, Vol. 8, Issue 5 https://doi.org/10.1063/1.5007316	journal	May 2018
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