Processing of MnBi bulk magnets with enhanced energy product
Abstract
Here, we report magnetic properties and microstructure of high energy-product MnBi bulk magnets fabricated by low-temperature ball-milling and warm compaction technique. A maximum energy product (BH)max of 8.4 MGOe and a coercivity of 6.2 kOe were obtained in the bulk MnBi magnet at room temperature. Magnetic characterization at elevated temperatures showed an increase in coercivity to 16.2 kOe while (BH)max value decreased to 6.8 MGOe at 400 K. Microstructure characterization revealed that the bulk magnets consist of oriented uniform nanoscale grains with average size about 50 nm.
- Authors:
- Publication Date:
- Research Org.:
- Ames Lab., Ames, IA (United States)
- Sponsoring Org.:
- USDOE Advanced Research Projects Agency - Energy (ARPA-E)
- OSTI Identifier:
- 1239162
- Alternate Identifier(s):
- OSTI ID: 1254300; OSTI ID: 1421063
- Report Number(s):
- IS-J-8991
Journal ID: ISSN 2158-3226
- Grant/Contract Number:
- REACT 0472-1526; AC02-07CH11358; W911NF-11-1-0507
- Resource Type:
- Published Article
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Name: AIP Advances Journal Volume: 6 Journal Issue: 5; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; magnets; powders; permanent magnets; coercive force; milling
Citation Formats
Poudyal, Narayan, Liu, Xubo, Wang, Wei, Nguyen, V. Vuong, Ma, Yilong, Gandha, Kinjal, Elkins, Kevin, Liu, J. Ping, Sun, Kewei, Kramer, M. J., and Cui, Jun. Processing of MnBi bulk magnets with enhanced energy product. United States: N. p., 2016.
Web. doi:10.1063/1.4942955.
Poudyal, Narayan, Liu, Xubo, Wang, Wei, Nguyen, V. Vuong, Ma, Yilong, Gandha, Kinjal, Elkins, Kevin, Liu, J. Ping, Sun, Kewei, Kramer, M. J., & Cui, Jun. Processing of MnBi bulk magnets with enhanced energy product. United States. https://doi.org/10.1063/1.4942955
Poudyal, Narayan, Liu, Xubo, Wang, Wei, Nguyen, V. Vuong, Ma, Yilong, Gandha, Kinjal, Elkins, Kevin, Liu, J. Ping, Sun, Kewei, Kramer, M. J., and Cui, Jun. Sun .
"Processing of MnBi bulk magnets with enhanced energy product". United States. https://doi.org/10.1063/1.4942955.
@article{osti_1239162,
title = {Processing of MnBi bulk magnets with enhanced energy product},
author = {Poudyal, Narayan and Liu, Xubo and Wang, Wei and Nguyen, V. Vuong and Ma, Yilong and Gandha, Kinjal and Elkins, Kevin and Liu, J. Ping and Sun, Kewei and Kramer, M. J. and Cui, Jun},
abstractNote = {Here, we report magnetic properties and microstructure of high energy-product MnBi bulk magnets fabricated by low-temperature ball-milling and warm compaction technique. A maximum energy product (BH)max of 8.4 MGOe and a coercivity of 6.2 kOe were obtained in the bulk MnBi magnet at room temperature. Magnetic characterization at elevated temperatures showed an increase in coercivity to 16.2 kOe while (BH)max value decreased to 6.8 MGOe at 400 K. Microstructure characterization revealed that the bulk magnets consist of oriented uniform nanoscale grains with average size about 50 nm.},
doi = {10.1063/1.4942955},
journal = {AIP Advances},
number = 5,
volume = 6,
place = {United States},
year = {Sun May 01 00:00:00 EDT 2016},
month = {Sun May 01 00:00:00 EDT 2016}
}
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https://doi.org/10.1063/1.4942955
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Cited by: 37 works
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Works referenced in this record:
Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient
journal, December 2010
- Gutfleisch, Oliver; Willard, Matthew A.; Brück, Ekkes
- Advanced Materials, Vol. 23, Issue 7
Prospects for Non-Rare Earth Permanent Magnets for Traction Motors and Generators
journal, June 2012
- Kramer, M. J.; McCallum, R. W.; Anderson, I. A.
- JOM, Vol. 64, Issue 7
Advances in nanostructured permanent magnets research
journal, December 2012
- Poudyal, Narayan; Ping Liu, J.
- Journal of Physics D: Applied Physics, Vol. 46, Issue 4
New permanent magnets; manganese compounds
journal, January 2014
- Coey, J. M. D.
- Journal of Physics: Condensed Matter, Vol. 26, Issue 6
Preparation and magnetic properties of MnBi
journal, April 2012
- Yang, Y. B.; Chen, X. G.; Wu, R.
- Journal of Applied Physics, Vol. 111, Issue 7
Structural and magnetic properties of bulk MnBi permanent magnets
journal, April 2011
- Zhang, D. T.; Cao, S.; Yue, M.
- Journal of Applied Physics, Vol. 109, Issue 7
Nanostructured bulk MnBi magnets fabricated by hot compaction of cryomilled powders
journal, June 2013
- Rama Rao, N. V.; Gabay, A. M.; Li, W. F.
- Journal of Physics D: Applied Physics, Vol. 46, Issue 26
A New Permanent Magnet from Powdered Manganese Bismuthide
journal, November 1952
- Adams, Edmond; Hubbard, William M.; Syeles, Albert M.
- Journal of Applied Physics, Vol. 23, Issue 11
Magnetic properties of MnBi prepared by rapid solidification
journal, December 1992
- Guo, X.; Chen, X.; Altounian, Z.
- Physical Review B, Vol. 46, Issue 22
Temperature dependences of structure and coercivity for melt-spun MnBi compound
journal, March 2013
- Yang, Y. B.; Chen, X. G.; Guo, S.
- Journal of Magnetism and Magnetic Materials, Vol. 330, p. 106-110
Electronic Structure and Maximum Energy Product of MnBi
journal, August 2014
- Park, Jihoon; Hong, Yang-Ki; Lee, Jaejin
- Metals, Vol. 4, Issue 3
High-energy-product MnBi films with controllable anisotropy: High-energy-product MnBi films with controllable anisotropy
journal, May 2015
- Zhang, Wenyong; Kharel, Parashu; Valloppilly, Shah
- physica status solidi (b), Vol. 252, Issue 9
Crystal structure and magnetic properties of MnxBi100−x (x=48, 50, 55 and 60) compounds
journal, June 2012
- Zhang, D. T.; Geng, W. T.; Yue, M.
- Journal of Magnetism and Magnetic Materials, Vol. 324, Issue 11
Anisotropic fully dense MnBi permanent magnet with high energy product and high coercivity at elevated temperatures
journal, January 2013
- Rama Rao, N. V.; Gabay, A. M.; Hadjipanayis, G. C.
- Journal of Physics D: Applied Physics, Vol. 46, Issue 6
Novel processing of high-performance MnBi magnets
journal, August 2014
- Nguyen, V. Vuong; Poudyal, N.; Liu, X. B.
- Materials Research Express, Vol. 1, Issue 3
Thermal stability of MnBi magnetic materials
journal, January 2014
- Cui, J.; Choi, J. P.; Li, G.
- Journal of Physics: Condensed Matter, Vol. 26, Issue 6
Crystal structure and magnetic properties of MnBi–Bi nanocomposite
journal, May 2005
- Kang, K.; Lewis, L. H.; Moodenbaugh, A. R.
- Journal of Applied Physics, Vol. 97, Issue 10
Structural and magnetic properties of rapidly quenched BiMn alloys
journal, March 1991
- Lakshmi, C. S.; Smith, R. W.
- Materials Science and Engineering: A, Vol. 133
Formation of MnBi ferromagnetic phases through crystallization of the amorphous phase
journal, April 1991
- Guo, X.; Altounian, Z.; Ström‐Olsen, J. O.
- Journal of Applied Physics, Vol. 69, Issue 8
Development of MnBi permanent magnet: Neutron diffraction of MnBi powder
journal, May 2014
- Cui, J.; Choi, J. P.; Li, G.
- Journal of Applied Physics, Vol. 115, Issue 17
Transport spin polarization of high Curie temperature MnBi films
journal, January 2011
- Kharel, P.; Thapa, P.; Lukashev, P.
- Physical Review B, Vol. 83, Issue 2
Metal-Redox Synthesis of MnBi Hard Magnetic Nanoparticles
journal, June 2015
- Kirkeminde, Alec; Shen, Jian; Gong, Maogang
- Chemistry of Materials, Vol. 27, Issue 13
MnBi magnets fabricated through spark plasma-sintering process
journal, March 2007
- Ko, K. Y.; Choi, S. J.; Yoon, S. K.
- Journal of Magnetism and Magnetic Materials, Vol. 310, Issue 2
Crystal structure, magnetic properties and electronic structure of the MnBi intermetallic compound
journal, June 2002
- Yang, J. B.; Yelon, W. B.; James, W. J.
- Journal of Physics: Condensed Matter, Vol. 14, Issue 25