Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications

Meng, F.; Chaudhary, R. P.; Gandha, K.; Nlebedim, I. C.; Palasyuk, A.; Simsek, E.; Kramer, M. J.; Ott, R. T.

doi:10.1007/s11837-018-2862-8

Title: Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications

Journal Article · Mon Apr 23 00:00:00 EDT 2018 · JOM. Journal of the Minerals, Metals & Materials Society

DOI:https://doi.org/10.1007/s11837-018-2862-8· OSTI ID:1435745

Meng, F. ^[1]; Chaudhary, R. P. ^[1]; Gandha, K. ^[1]; Nlebedim, I. C. ^[1]; Palasyuk, A. ^[1]; Simsek, E. ^[1]; Kramer, M. J. ^[1]; Ott, R. T. ^[1]

Ames Lab., Ames, IA (United States)

Here, this work focuses on the rapid synthesis and characterization of quaternary Ce(CoFeCu)₅ alloy libraries to assess their potential viability as permanent magnets. Arrays of bulk specimens with controlled compositions were synthesized via laser engineered net shaping (LENS) by feeding different ratios of alloy powders into a melt pool created by a laser. Based on the assessment of the magnetic properties of the LENS printed samples, arc-melted and cast ingots were prepared with varying Fe (5–20 at.%) and Co (60–45 at.%) compositions while maintaining constant Ce (16 at.%) and Cu (19 at.%) content. The evolution of the microstructure and phases with varying chemical compositions and their dependence on magnetic properties are analyzed in as-cast and heat-treated samples. In both the LENS printed and cast samples, we find the best magnetic properties correspond to a predominantly single-phase Ce(CoFeCu)₅ microstructure in which high coercivity (H_c > 10 kOe) can be achieved without any microstructural refinement.

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Research Organization:: Ames Lab., Ames, IA (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC02-07CH11358

OSTI ID:: 1435745

Report Number(s):: IS-J-9649; PII: 2862

Journal Information:: JOM. Journal of the Minerals, Metals & Materials Society, Vol. 70, Issue 6; ISSN 1047-4838

Publisher:: SpringerCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 9 works

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References (20)

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