Ceramic heat pipe wick

Details Ceramic heat pipe wick Ceramic heat pipe wick

1989-01-31

1989-11-28

Davis, Jr., Albert W.

Heat exchange

Intermediate fluent heat exchange material receiving and...

Liquid fluent heat exchange material

165905, 165 41, 122366, F28D 1502

Patent

active

048831166

ABSTRACT:
A wick for use in a capillary loop pump heat pipe. The wick material is an essentially uniformly porous, permeable, open-cell, silicon dioxide/aluminum oxide inorganic ceramic foam having a silica fiber to alumina fiber ratio, by weight, of about 78 to 22, respectively, a density of 6 lbs/ft.sup.3, and an average pore size of less than 5 microns. A representative material having these characteristics is Lockheed Missiles and Space Company, Inc. HTP 6-22. This material is fully compatible with the FREONs and anhydrous ammonia and allows for the use of these very efficient working fluids, and others, in capillary loops.

REFERENCES:
patent: 3840069 (1974-10-01), Fischer et al.
patent: 3901311 (1975-08-01), Kosson et al.
patent: 3954927 (1976-05-01), Duling et al.
patent: 4274479 (1981-06-01), Eastman
patent: 4414961 (1983-11-01), Luebbe
patent: 4765396 (1988-08-01), Seidenberg

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