Thallous and cesium halide materials for use in cryogenic applic

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Rod – strand – filament or fiber

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427117, 427120, 428389, B32B 1500

Patent

active

043562353

ABSTRACT:
Certain thallous and cesium halides, either used alone or in combination with other ceramic materials, are provided in cryogenic applications such as heat exchange material for the regenerator section of a closed-cycle cryogenic refrigeration section, as stabilizing coatings for superconducting wires, and as dielectric insulating materials. The thallous and cesium halides possess unusually large specific heats at low temperatures, have large thermal conductivities, are nonmagnetic, and are nonconductors of electricity. They can be formed into a variety of shapes such as spheres, bars, rods, or the like and can be coated or extruded onto substrates or wires.

REFERENCES:
patent: 4171464 (1979-10-01), Steyert
patent: 4296147 (1981-10-01), Lawless

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