Processing of MnBi bulk magnets with enhanced energy product

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. Magn...

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Main Authors:	Narayan Poudyal, Xubo Liu, Wei Wang, V. Vuong Nguyen, Yilong Ma, Kinjal Gandha, Kevin Elkins, J. Ping Liu, Kewei Sun, M. J. Kramer, Jun Cui
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2016-05-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.4942955

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spelling	doaj-b462b2b245574fdd97760b205064daf62020-11-24T22:07:56ZengAIP Publishing LLCAIP Advances2158-32262016-05-0165056004056004-710.1063/1.4942955027691ADVProcessing of MnBi bulk magnets with enhanced energy productNarayan Poudyal0Xubo Liu1Wei Wang2V. Vuong Nguyen3Yilong Ma4Kinjal Gandha5Kevin Elkins6J. Ping Liu7Kewei Sun8M. J. Kramer9Jun Cui10Department of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USADepartment of Physics, University of Texas at Arlington, Arlington, Texas 76019, USAAmes Laboratory of the U.S., Department of Energy, Iowa State University, Ames, Iowa 50011, USAAmes Laboratory of the U.S., Department of Energy, Iowa State University, Ames, Iowa 50011, USAAmes Laboratory of the U.S., Department of Energy, Iowa State University, Ames, Iowa 50011, USAWe 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.http://dx.doi.org/10.1063/1.4942955
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Narayan Poudyal Xubo Liu Wei Wang V. Vuong Nguyen Yilong Ma Kinjal Gandha Kevin Elkins J. Ping Liu Kewei Sun M. J. Kramer Jun Cui
spellingShingle	Narayan Poudyal Xubo Liu Wei Wang V. Vuong Nguyen Yilong Ma Kinjal Gandha Kevin Elkins J. Ping Liu Kewei Sun M. J. Kramer Jun Cui Processing of MnBi bulk magnets with enhanced energy product AIP Advances
author_facet	Narayan Poudyal Xubo Liu Wei Wang V. Vuong Nguyen Yilong Ma Kinjal Gandha Kevin Elkins J. Ping Liu Kewei Sun M. J. Kramer Jun Cui
author_sort	Narayan Poudyal
title	Processing of MnBi bulk magnets with enhanced energy product
title_short	Processing of MnBi bulk magnets with enhanced energy product
title_full	Processing of MnBi bulk magnets with enhanced energy product
title_fullStr	Processing of MnBi bulk magnets with enhanced energy product
title_full_unstemmed	Processing of MnBi bulk magnets with enhanced energy product
title_sort	processing of mnbi bulk magnets with enhanced energy product
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2016-05-01
description	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.
url	http://dx.doi.org/10.1063/1.4942955
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Processing of MnBi bulk magnets with enhanced energy product

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