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Processing and testing of the low-temperature stage erbium(6)-nickel(2)-tin cryogenic regenerator alloy.

Author(s) : GSCHNEIDNER K. A. Jr, PECHARSKY V. K., OSBORNE M. G., MOORMAN J. O., ANDERSON I. E., PASKER D., EASTWOOD M. L.

Summary

Low temperature heat capacity measurements have shown that erbium(6)-nickel(2)-tin might be a useful low temperature (lower than 20 K), cryocooler regenerator material. The authors report on: 1) their efforts to prepare small particles for use in Gifford-McMahon cryocoolers, and 2) the initial test results using erbium(6)-nickel(2)-tin in the low-temperature stage of a Gifford-McMahon displacer. Replacement of some of the neodymium spheres by erbium(6)-nickel(2)-tin in the second stage achieved a modest improvement in the no-load temperature of about 0.5 K over the all-neodymium second stage.

Details

  • Original title: Processing and testing of the low-temperature stage erbium(6)-nickel(2)-tin cryogenic regenerator alloy.
  • Record ID : 1998-1426
  • Languages: English
  • Source: Cryocoolers 9. Proceedings of the International Cryocooler Conference.
  • Publication date: 1996/06/25
  • Document available for consultation in the library of the IIR headquarters only.

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