Lanthanide Al-Ni base Ericsson cycle magnetic refrigerants

Details Lanthanide Al-Ni base Ericsson cycle magnetic refrigerants Lanthanide Al-Ni base Ericsson cycle magnetic refrigerants

1993-07-08

1995-10-31

Simmons, David A.

Metal treatment

Stock

Magnetic

420416, C22C 2800

Patent

active

054626102

ABSTRACT:
A magnetic refrigerant for a magnetic refrigerator using the Ericsson thermodynamic cycle comprises DyAlNi and (Gd.sub.0.54 Er.sub.0.46)AlNi alloys having a relatively constant .DELTA.Tmc over a wide temperature range.

REFERENCES:
patent: 4849017 (1989-07-01), Sahashi et al.
patent: 5213630 (1993-05-01), Hashimoto
Structural and Magnetic Studies on Rare-Earth Compounds RNiAl and RCuAL; Journal of Less Common Metals, 30 (1973) 225-236; Hans Oesterreicher.
Journal of Less Common Metals 30, 1973 pp. 226-235.
"Materials for Regenerative Magnetic Cooling Spanning 20K to 80K"; Adv. Cryogenic Eng. 37, 1992, pp. 883-890; Zimm, Ludeman, Severson, Henning.
"Heat Capacity in Superconducting and Normal-State LaS.sub.X (1.333.ltoreq.x.ltoreq.1.500) Compounds", Phys. Review B, vol. 25, No. 7, Apr. 1, 1982, pp. 4604-4617; Ikeda, Gschneidner, Jr., Beaudry, Atzmony.
"Comptes Rendus Herbdomadaires Des Seances" De L'academie Des Sciences, 247, pp. 1836-1838 (1958).
"Thermodynamic Analysis of Magnetically Active Regenerator From 30 to 70K with a Brayton-like Cycle"; Cryogenics, 1990, vol. 30, Oct., pp. 840-845; Matsumoto, Hashimoto.
"An Ericsson Magnetic Refrigerator For Low Temperature"; Adv. in Cryo. Eng., vol. 33, pp. 743-450; Matsumoto, Ito, Hashimoto 1988.
"Binary Alloy Phase Diagrams", 2nd Edition, vol. 1, (1990), pp. 144-145.
"Investigation of the Magnetic Refrigerant for the Ericsson Magnetic Refrigerator"; Jap. J. App. Phys., vol. 26 (1987), pp. 1673-1674; Hashimoto, et al.
"New Application of Complex Magnetic Materials to the Magnetic Refrigerant in an Ericsson Magnetic Refrigerator"; J. Appl. Phys. 62(9), Nov. 1, 1987, pp. 3873-3878; Hashimoto, et al.

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