Oxidizers, propellant nitrogen tetroxide

Nitrogen Oxides as Rocket Fuel Oxidants Including The Theoretical Performances of Propellant Systems Employing Nitrogen Tetroxide , JPL PR No 9-23, Cal Inst Tech, Proj No TU2-1,... 

Iridium Coating for Spacecraft Rocket Nozzles. The coating of rocket nozzles with iridium is a good example of the ability of CVD to provide a complete composite material, in this case a structural refractory shell substrate coated with a corrosion- and oxidation-resistant component. The device is a thruster rocket nozzle for a satellite. The rocket uses a liquid propellant which is a mixture of nitrogen tetroxide and monomethyl hydrazine. 

Monomethylhydrazine is a clear, colorless liquid used extensively in military applications as a missile and rocket propellant, in chemical power sources, and as a solvent and chemical intermediate. Upon contact with strong oxidizers (e.g., hydrogen peroxide, nitrogen tetroxide, chlorine, fluorine) spontaneous ignition may occur. 

The liquid propellant rocket combination nitrogen tetroxide (N204) and IJDMII (unsymmetrical dimethyl hydrazine) has optimum performance at an oxidizer-to-fuel weight ratio of 2 at a chamber pressure of 67 atm. Assume that the products of combustion of this mixture are N2, C02, H20, CO, H2, O, H, OH, and NO. Set down the equations necessary to calculate the adiabatic combustion temperature and the actual product composition under these conditions. These equations should contain all the numerical... 

They remain liquid under normal, ambient operating conditions (moderate temperature, atmospheric pressure). Safety in storage and handling should also be considered. A storable liquid propellant should not have an excessively high vapour pressure at ambient temperature. The leading storable propellant uses dinitrogen tetroxide as oxidizer and a 50/50 mixture of hydrazine-unsymmetrical dimethylhydrazine (UDMH) as fuel [71], Nitrogen tetroxide and UDMH is another storable propellant mixture in use [73],... 

The hybrids consist of solid and liquid substances in the same system. The most widely used hybrid concept has a hollow solid fuel grain, much like a solid propellant grain, but with no solid oxidizer present. The fuel grain may contain other. energetic solid substances. The oxidizer is generally a storable liquid propellant such as nitrogen tetroxide or chlorine trifluoride. 

FUELS, MISSILE. United States Defense Research reports chat aluminum is resistant to many oxidizers and fuels used as missile propellants. Aluminum alloys are used with chlorine trifluoride, ethylene oxide. fluorine, hydrazine, unsymmetrica dimethyl hydrazine, hydrogen pero.tide, liquid oxygen, nitrogen tetroxide (0.1% or less moisture), fuming nitric acid, n-propyl nitrate, liquid nitrogen, alkyl bor-anes, perchloryl fluoride (anhydrous) and liquid hydrogen. Ref Titan II Storable Propellant Handbook—Bell Aerospace Company. New York. Report No. 8111-933003... 

Several nitrogen oxides, NO2 or N2O4, are known that are involved in the production of nitric acid. Dinitrogen tetroxide N2O4 is used as a propellant for missiles (i.e. as a fuel), where it is stored in tanks made of weldable high-resistance aluminium alloys 2219,6061, 5086 and 7020. 

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