Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1975-09-02
1977-05-03
Anderson, Philip
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156250, 156330, 176 1, 264 5, 264 28, 264 41, 264 453, 264 459, 264148, 264200, 264DIG6, B29D 2700
Patent
active
040212807
ABSTRACT:
Foam-encapsulated laser fusion targets are fabricated by suspending fusion fuel filled shells in a solution of cellulose acetate, extruding the suspension through a small orifice into a bath of ice water, soaking the thus formed shell containing cellulose acetate gel in the water to extract impurities, freezing the gel, and thereafter freeze-drying wherein water and solvents sublime and the gel structure solidifies into a low-density microcellular foam containing one or more encapsulated fuel-filled shells. The thus formed material is thereafter cut and mounted on a support to provide laser fusion targets containing a fuel-filled shell surrounded by foam having a thickness of 10 to 60 .mu.m, a cell size of less than 2 .mu.m, and density of 0.08 to 0.6.times.10.sup.3 kg/m.sup.3. Various configured foam-encapsulated targets capable of being made by the encapsulation method are illustrated.
REFERENCES:
patent: 3276996 (1966-10-01), Lazare
patent: 3338665 (1967-08-01), Silverman
patent: 3428584 (1969-02-01), Riley
patent: 3453215 (1969-07-01), Carnall et al.
patent: 3724672 (1973-04-01), Leonard et al.
patent: 3849350 (1974-11-01), Matsko
Lewkowicz, Irena, "Spherical Hydrogen Targets for Laser-Produced Fusion", in J. Phys. D:Appl. Phys., vol. 7, 1974, pp. L61-L62, (Letter to the Editor).
Hendricks, C. D., "Hydrogen Pellet Generation for Fusion Research", in Bulletin of the American Physical Society, series II, vol. 19, Oct., 1974, pp. 915, 927, 963.
Fulton Fred J.
Rinde James A.
Anderson Philip
Carlson Dean E.
Carnahan L. E.
Gaither Roger S.
The United States of America as represented by the United States
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