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Title: Erbium-based magnetic refrigerant (regenerator) for passive cryocooler

Abstract

A two stage Gifford-McMahon cryocooler having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from the group consisting of Er.sub.6 Ni.sub.2 Sn, Er.sub.6 Ni.sub.2 Pb, Er.sub.6 Ni.sub.2 (Sn.sub.0.75 Ga.sub.0.25), and Er.sub.9 Ni.sub.3 Sn comprising a mixture of Er.sub.3 Ni and Er.sub.6 Ni.sub.2 Sn in the microstructure.

Inventors:
 [1];  [2]
  1. (Ames, IA)
  2. Ames, IA
Issue Date:
Research Org.:
Ames Lab., Ames, IA (United States); Iowa State Univ., Ames, IA (United States)
OSTI Identifier:
870517
Patent Number(s):
5537826
Application Number:
08/266,090
Assignee:
Iowa State University Research Foundation, Inc. (Ames, IA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01F - MAGNETS
F - MECHANICAL ENGINEERING F25 - REFRIGERATION OR COOLING F25B - REFRIGERATION MACHINES, PLANTS OR SYSTEMS
DOE Contract Number:  
W-7405-ENG-82
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
erbium-based; magnetic; refrigerant; regenerator; passive; cryocooler; stage; gifford-mcmahon; temperature; reaching; approximately; 10k; heat; selected; consisting; pb; 75; 25; comprising; mixture; microstructure; temperature stage; passive magnetic; magnetic refrigerant; magnetic heat; heat regenerator; /62/148/420/

Citation Formats

Gschneidner, Jr., Karl A., and Pecharsky, Vitalij K. Erbium-based magnetic refrigerant (regenerator) for passive cryocooler. United States: N. p., 1996. Web.
Gschneidner, Jr., Karl A., & Pecharsky, Vitalij K. Erbium-based magnetic refrigerant (regenerator) for passive cryocooler. United States.
Gschneidner, Jr., Karl A., and Pecharsky, Vitalij K. Mon . "Erbium-based magnetic refrigerant (regenerator) for passive cryocooler". United States. https://www.osti.gov/servlets/purl/870517.
@article{osti_870517,
title = {Erbium-based magnetic refrigerant (regenerator) for passive cryocooler},
author = {Gschneidner, Jr., Karl A. and Pecharsky, Vitalij K},
abstractNote = {A two stage Gifford-McMahon cryocooler having a low temperature stage for reaching approximately 10K, wherein the low temperature stage includes a passive magnetic heat regenerator selected from the group consisting of Er.sub.6 Ni.sub.2 Sn, Er.sub.6 Ni.sub.2 Pb, Er.sub.6 Ni.sub.2 (Sn.sub.0.75 Ga.sub.0.25), and Er.sub.9 Ni.sub.3 Sn comprising a mixture of Er.sub.3 Ni and Er.sub.6 Ni.sub.2 Sn in the microstructure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

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Works referenced in this record:

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The heat capacities of seven rare-earth ethylsulphates at low temperature
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