US Government As Represented by the Secretary of the Army

Orval E Ayers

William M Chew

James A Murfree, Jr

Pasquale Martignoni

Roy E Patrick

Henry A Nappier

Hiram W Dykes

Bernard J Alley

Dennis C Van Landuyt

A process for producing a calcium chemical pump which includes reacting cium and anhydrous ammonia in a closed vessel that is cooled to a temperature below 0.degree. C. to form a solution of the calcium and anhydrous ammonia and then spraying the solution onto a rotating porous foamed substrate material in a closed container that has a vacuum pulled thereon, and the solution when sprayed causing the ammonia to flash and be evaporated and drawn off by the vacuum to cause the calcium to be deposited on the rotating porous foamed substrate material.

Supports and preparation process for the manufacture of a calcium

The use of a class or compounds known as amine-boranes and their derivati in solid propellants to produce or generate hydrogen or deuterium upon combustion.

Amine-boranes as hydrogen generating propellants

A catalyst bed containing alumina pellets on which an active catalyst metal selected from iridium, nickel, niobium, and molybdenium has been deposited is employed to decompose a compound selected from deuterohydrazine, deuteroammonia, hydrazine, and ammonia to yield ammonia free deuterium and nitrogen or hydrogen and nitrogen at a temperature required for immediate use in a DF or HF laser which uses F atoms as the fuel. The decomposition temperature of the catalyst bed is maintained by a hypergolic reaction produced from reacting a fuel selected from the group consisting of hydrazine, methylhydrazine, 1,2-dimethylhydrazine, and blends of the same with an oxidizer selected from the group consisting of inhibited red fuming nitric acid, dinitrogen tetroxide, chlorine trifluoride, and chlorine pentafluoride. A laser employing ammonia free decomposition products of hydrazine and ammonia produced at a temperature between about 500.degree. C. and 900.degree. C. operates at a higher power output. When NH.sub.3 is present in the H.sub.2 and diluent gas, N.sub.2, a decrease of 20% in the output is experienced for each 1-2% NH.sub.3 up to about 8% concentration.

Hydrogen gas generator from hydrazine/ammonia

A cyano compound fuel selected from the group consisting of dicyanoacetylene (DCA), tetracyanoethylene (TCE), and tetracyanoethylene oxide (TCEO) when reacted with an oxidizer compound selected from the group consisting of fluorine (F.sub.2), nitrogen trifluoride (NF.sub.3), chlorine trifluoride (ClF.sub.3), chlorine pentafluoride (ClF.sub.5), and tetrafluorohydrazine (N.sub.2 F.sub.4) produces the F.sup.. atom concentration required for either HF or DF lasers. The reaction is accomplished in the presence of a diluent gas selected from nitrogen and helium. No deactivation species are among the gaseous species produced which include CF.sub.4, F.sup.. atoms, and N.sub.2 ; therefore, deactivation of the excited molecules, either HF or DF, which are responsible for the lasing in a HF or DF laser is prevented. A higher performance of the laser device can be achieved.

Cyano compounds as fuels for HF or DF lasers

Disclosed are storable solid propellant compositions based on complex metal oron compounds of the general formula M(BH.sub.4).sub.x or M(BD.sub.4).sub.x, (where M equals a metal and x equals the valence of the metal M; M is an alkali metal or an alkaline earth metal; H is hydrogen, and D is deuterium) and ammonium salts of the general formula (NH.sub.4).sub.n Y or deuteroammonium salts of the general formula (ND.sub.4).sub.n Y (where Y represents an anion with a total charge of n; N is nitrogen, H is hydrogen, and D is deuterium) combined stoichiometrically or in varying molar ratios. The stoichiometric blend is employed in a method for producing hydrogen or deuterium that contains nitrogen as an inert diluent and is acceptable for use in HF/DF chemical lasers, the gas dynamic laser (GDL), or as a source to generate hydrogen containing an inert diluent.

Method for producing hydrogen or deuterium from storable solid

Solid propellants for generating hydrogen

A method for preparing aziridine coated ammonium perchlorate (AP) of weight edian diameters (WMD) ranging from about 0.25 to about 5.0 micrometers is disclosed. The method employs either an unlined stainless steel or a polyurethane lined vibro-energy grinding mill wherein a high purity aziridine compound is used as the grinding aid and the coating agent for the AP. The coated AP product extends the pot-life for hydroxyterminated polybutadiene (HTPB) propellant formulations.

Method for preparing small particle size coated ammonium perchlorate

The compound 2-ferrocenyltetrahydrofuran in solid propellant compositions a ballistic modifier. This ballistic modifier increases the burning rate and improves the performance of the particular solid propellant composition in which it is incorporated. The propellant compositions contain in addition to said ballistic modifier, a binder, an oxidizer and a metal fuel.

Ballistic modification of composite propellants by use of

A storable solid propellant composition based on complex metal boron compds of the general formula M(BH.sub.4).sub.x or M(BD.sub.4).sub.x, (where M equals a metal and x equals the valence of the metal M; M is an alkali metal or an alkali earth metal; H is hydrogen, and D is deuterium) and metal oxides of the general formula Q.sub.2 O.sub.3 (where Q is a trivalent metal selected from iron, aluminum, gallium cobalt, and indium) combined stoichiometrically. The stoichiometric blend is employed in a method for producing high temperature (e.g. 600.degree.C-700.degree.C) hydrogen or deuterium that is acceptable for use in HF/DF and HCl chemical lasers, the gas dynamic laser (GDL), or a source to generate chemically pure and hot hydrogen gas as a reducing fuel.

Hydrogen gas generators for use in chemical lasers

A storable solid propellant composition based on unsolvated aluminum deutde or unsolvated aluminum hydride and ferric oxide is provided for use in a method for producing high temperature hydrogen or deuterium that is acceptable for use in HF/DF and HCl chemical laser, the gas dynamic laser (GDL), or a source to generate chemically pure and hot hydrogen gas as a reducing fuel.

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Huntsville, AL, United States of America

Orval E Ayers