Recycling of additively printed rare-earth bonded magnets

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dc.contributor.author Gandha, Kinjal
dc.contributor.author Ouyang, Gaoyuan
dc.contributor.author Gupta, Shalabh
dc.contributor.author Kunc, Vlastimil
dc.contributor.author Paranthaman, M. Parans
dc.contributor.author Nlebedim, I. C.
dc.contributor.department Ames Laboratory
dc.contributor.department Materials Science and Engineering
dc.date 2019-09-21T21:46:02.000
dc.date.accessioned 2020-06-29T23:21:58Z
dc.date.available 2020-06-29T23:21:58Z
dc.date.embargo 2020-04-24
dc.date.issued 2019-04-24
dc.description.abstract <p>In this work, we describe an efficient and environmentally benign method of recycling of additive printed Nd-Fe-B polymer bonded magnets. Rapid pulverization of bonded magnets into composite powder containing Nd-Fe-B particles and polymer binder was achieved by milling at cryogenic temperatures. The recycled bonded magnets fabricated by warm compaction of ground cryomilled coarse composite powders and nylon particles showed improved magnetic properties and density. Remanent magnetization and saturation magnetization increased by 4% and 6.5% respectively, due to enhanced density while coercivity and energy product were retained from the original additive printed bonded magnets. This study presents a facile method that enables the direct reuse of end-of-life bonded magnets for remaking new bonded magnets. In addition to magnetic properties, mechanical properties comparable to commercial products have been achieved. This research advances efforts to ensure sustainability in critical materials by forming close loop supply chain.</p>
dc.identifier archive/lib.dr.iastate.edu/ameslab_manuscripts/288/
dc.identifier.articleid 1297
dc.identifier.contextkey 14779759
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath ameslab_manuscripts/288
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/7220
dc.language.iso en
dc.relation.ispartofseries IS-J 9933
dc.source.bitstream archive/lib.dr.iastate.edu/ameslab_manuscripts/288/IS_J_9933.pdf|||Fri Jan 14 23:12:08 UTC 2022
dc.source.uri 10.1016/j.wasman.2019.04.040
dc.subject.disciplines Environmental Health and Protection
dc.subject.disciplines Materials Science and Engineering
dc.subject.disciplines Natural Resource Economics
dc.subject.keywords Recycling
dc.subject.keywords Bonded magnets
dc.subject.keywords Cryomilling
dc.subject.keywords Waste management
dc.subject.keywords Additive manufacturing
dc.subject.keywords Nd-Fe-B
dc.title Recycling of additively printed rare-earth bonded magnets
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
relation.isOrgUnitOfPublication bf9f7e3e-25bd-44d3-b49c-ed98372dee5e
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