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

Abstract

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 (Hc > 10 kOe) can be achieved without any microstructural refinement.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1]
  1. Ames Lab., Ames, IA (United States)
Publication Date:
Research Org.:
Ames Lab., Ames, IA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1435745
Report Number(s):
IS-J-9649
Journal ID: ISSN 1047-4838; PII: 2862
Grant/Contract Number:  
AC02-07CH11358
Resource Type:
Accepted Manuscript
Journal Name:
JOM. Journal of the Minerals, Metals & Materials Society
Additional Journal Information:
Journal Volume: 70; Journal Issue: 6; Journal ID: ISSN 1047-4838
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Meng, F., Chaudhary, R. P., Gandha, K., Nlebedim, I. C., Palasyuk, A., Simsek, E., Kramer, M. J., and Ott, R. T. Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications. United States: N. p., 2018. Web. doi:10.1007/s11837-018-2862-8.
Meng, F., Chaudhary, R. P., Gandha, K., Nlebedim, I. C., Palasyuk, A., Simsek, E., Kramer, M. J., & Ott, R. T. Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications. United States. https://doi.org/10.1007/s11837-018-2862-8
Meng, F., Chaudhary, R. P., Gandha, K., Nlebedim, I. C., Palasyuk, A., Simsek, E., Kramer, M. J., and Ott, R. T. Mon . "Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications". United States. https://doi.org/10.1007/s11837-018-2862-8. https://www.osti.gov/servlets/purl/1435745.
@article{osti_1435745,
title = {Rapid Assessment of the Ce-Co-Fe-Cu System for Permanent Magnetic Applications},
author = {Meng, F. and Chaudhary, R. P. and Gandha, K. and Nlebedim, I. C. and Palasyuk, A. and Simsek, E. and Kramer, M. J. and Ott, R. T.},
abstractNote = {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 (Hc > 10 kOe) can be achieved without any microstructural refinement.},
doi = {10.1007/s11837-018-2862-8},
journal = {JOM. Journal of the Minerals, Metals & Materials Society},
number = 6,
volume = 70,
place = {United States},
year = {Mon Apr 23 00:00:00 EDT 2018},
month = {Mon Apr 23 00:00:00 EDT 2018}
}

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Cited by: 9 works
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