Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons
Abstract
Magnetic properties of Ce and Co co-doped (Nd1-xCex)2Fe14-yCoyB 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.
- Authors:
-
- Iowa State Univ., Ames, IA (United States)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- OSTI Identifier:
- 1227448
- Alternate Identifier(s):
- OSTI ID: 1358701
- Report Number(s):
- IS-J-8781
Journal ID: ISSN 1359-6454; PII: S1359645415007387
- Grant/Contract Number:
- AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Acta Materialia
- Additional Journal Information:
- Journal Volume: 103; Journal Issue: C; Journal ID: ISSN 1359-6454
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 77 NANOSCIENCE AND NANOTECHNOLOGY; permanent magnet; melt spun ribbons; maximum energy product
Citation Formats
Pathak, Arjun K., Khan, M., Gschneidner, Jr., K. A., McCallum, R. W., Zhou, L., Sun, K., Kramer, M. J., and Pecharsky, V. K. Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons. United States: N. p., 2015.
Web. doi:10.1016/j.actamat.2015.09.049.
Pathak, Arjun K., Khan, M., Gschneidner, Jr., K. A., McCallum, R. W., Zhou, L., Sun, K., Kramer, M. J., & Pecharsky, V. K. Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons. United States. https://doi.org/10.1016/j.actamat.2015.09.049
Pathak, Arjun K., Khan, M., Gschneidner, Jr., K. A., McCallum, R. W., Zhou, L., Sun, K., Kramer, M. J., and Pecharsky, V. K. Fri .
"Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons". United States. https://doi.org/10.1016/j.actamat.2015.09.049. https://www.osti.gov/servlets/purl/1227448.
@article{osti_1227448,
title = {Magnetic properties of bulk, and rapidly solidified nanostructured (Nd1-xCex)2Fe14-yCoyB ribbons},
author = {Pathak, Arjun K. and Khan, M. and Gschneidner, Jr., K. A. and McCallum, R. W. and Zhou, L. and Sun, K. and Kramer, M. J. and Pecharsky, V. K.},
abstractNote = {Magnetic properties of Ce and Co co-doped (Nd1-xCex)2Fe14-yCoyB 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.},
doi = {10.1016/j.actamat.2015.09.049},
journal = {Acta Materialia},
number = C,
volume = 103,
place = {United States},
year = {Fri Nov 06 00:00:00 EST 2015},
month = {Fri Nov 06 00:00:00 EST 2015}
}
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