Centrifugal Atomization of Neodymium and Er3Ni Regenerator Particulate

  • M. G. Osborne
  • I. E. Anderson
  • K. A. GschneidnerJr.
  • M. J. Gailloux
  • T. W. Ellis
Part of the An International Cryogenic Materials Conference Publication book series (ACRE, volume 40)


Many applications require reliable, compact cryogenic coolers such as those that operate on the Gifford-McMahon cycle. Recent cryocooler research has concentrated on the use of lanthanide containing materials due to their large heat capacities at low temperatures. A major problem with employing lanthanide metals and compounds in cryocoolers is the difficulty involved in producing sound, spherical particles with low contamination. 1–3 To permit the full realization of the benefits of lanthanide heat exchanger materials, this study addresses the development of a centrifugal atomization apparatus which can produce high quality Er3Ni and Nd powders. The device from which this apparatus evolves has been shown to produce spherical particles with narrow size distributions.4 While our overall efforts include both fabrication and characterization of lanthanide based powders, we have limited this paper to a discussion of the characterization techniques and results.


Heat Capacity Heat Capacity Measurement High Heat Capacity Centrifugal Atomization Lanthanide Material 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • M. G. Osborne
    • 1
  • I. E. Anderson
    • 1
  • K. A. GschneidnerJr.
  • M. J. Gailloux
    • 1
  • T. W. Ellis
    • 1
  1. 1.Metallurgy and Ceramics Division Ames LaboratoryAmesUSA

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