skip to main content

DOE PAGESDOE PAGES

Title: Additive manufacturing of permanent magnets

Here, permanent magnets enable energy conversion. Motors and generators are used to convert both electrical to mechanical energy and mechanical to electrical energy, respectively. They are precharged (magnetized) prior to being used in an application and must remain magnetized during operation. In addition, they should generate sufficient magnetic flux for a given application. Nevertheless permanent magnets can be demagnetized (discharged of their magnetization) by other magnetic materials in their service vicinity, temperature changes (thermal demagnetization), microstructural degradations and the magnet’s internal demagnetizing field. Therefore a permanent magnet can be qualified based on the properties that measure its ability to withstand demagnetization and to supply sufficient magnetic flux required for a given application. Some of those properties are further discussed below. Additive manufacturing followed by exchange spring magnets will be discussed afterwards.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Ames Lab., Ames, IA (United States)
  3. GE Global Research, Niskayuna, New York (United States)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Publication Date:
Report Number(s):
LLNL-JRNL-707384
Journal ID: ISSN 1933-9631
Grant/Contract Number:
AC52-07NA27344
Type:
Accepted Manuscript
Journal Name:
Material Matters
Additional Journal Information:
Journal Volume: 11; Journal Issue: 4; Journal ID: ISSN 1933-9631
Publisher:
Sigma-Aldrich
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
OSTI Identifier:
1349005

Paranthaman, M. P., Nlebedim, I. C., Johnson, F., and McCall, S. K.. Additive manufacturing of permanent magnets. United States: N. p., Web.
Paranthaman, M. P., Nlebedim, I. C., Johnson, F., & McCall, S. K.. Additive manufacturing of permanent magnets. United States.
Paranthaman, M. P., Nlebedim, I. C., Johnson, F., and McCall, S. K.. 2016. "Additive manufacturing of permanent magnets". United States. doi:. https://www.osti.gov/servlets/purl/1349005.
@article{osti_1349005,
title = {Additive manufacturing of permanent magnets},
author = {Paranthaman, M. P. and Nlebedim, I. C. and Johnson, F. and McCall, S. K.},
abstractNote = {Here, permanent magnets enable energy conversion. Motors and generators are used to convert both electrical to mechanical energy and mechanical to electrical energy, respectively. They are precharged (magnetized) prior to being used in an application and must remain magnetized during operation. In addition, they should generate sufficient magnetic flux for a given application. Nevertheless permanent magnets can be demagnetized (discharged of their magnetization) by other magnetic materials in their service vicinity, temperature changes (thermal demagnetization), microstructural degradations and the magnet’s internal demagnetizing field. Therefore a permanent magnet can be qualified based on the properties that measure its ability to withstand demagnetization and to supply sufficient magnetic flux required for a given application. Some of those properties are further discussed below. Additive manufacturing followed by exchange spring magnets will be discussed afterwards.},
doi = {},
journal = {Material Matters},
number = 4,
volume = 11,
place = {United States},
year = {2016},
month = {10}
}