Sienna Technologies, Inc. Patent applications |
Patent application number | Title | Published |
20120297779 | CORROSION RESISTANT CATALYSTS FOR DECOMPOSITION OF LIQUID MONOPROPELLANTS - Ceramic catalyst carriers that are mechanically, thermally and chemically stable in a ionic salt monopropellant decomposition environment and high temperature catalysts for decomposition of liquid high-energy-density monopropellants are disclosed. The ceramic catalyst carrier has excellent thermal shock resistance, good compatibility with the active metal coating and metal coating deposition processes, melting point above 1800° C., chemical resistance to steam, nitrogen oxides and acids, resistance to sintering to prevent void formation, and the absence of phase transition associated with volumetric changes at temperatures up to and beyond 1800° C. | 11-29-2012 |
20120192750 | METHODS OF PRODUCING COUNTERMEASURE DECOYS HAVING TAILORED EMISSION SIGNATURES - Methods of producing pyrophoric countermeasure decoy flares include depositing a sculptured thin film of a pyrophoric material onto a substrate using physical vapor deposition. In an example embodiment, physical vapor deposition is performed using a glove box integrated sputtering system. The methods may also include pre-treating the substrate to modify an atomic shadowing effect during pyrophoric material deposition and packaging a plurality of the pyrophoric decoy flares in an airtight container. | 08-02-2012 |
20120115709 | High Temperature Catalysts for Decomposition of Liquid Monopropellants and Methods for Producing the Same - Ceramic catalyst carriers that are mechanically, thermally and chemically stable in a ionic salt monopropellant decomposition environment, high temperature catalysts for decomposition of liquid high-energy-density monopropellants and ceramic processing techniques for producing spherical catalyst carrier granules are disclosed. The ceramic processing technique is used to produce spherical catalyst carrier granules with controlled porosities and desired composition and allows for reproducible packing densities of catalyst granules in thruster chambers. The ceramic catalyst carrier has excellent thermal shock resistance, good compatibility with the active metal coating and metal coating deposition processes, melting point above >2300° C., chemical resistance to steam, nitrogen oxides and nitric acid, resistance to sintering to prevent void formation, and the absence of phase transition associated with volumetric changes at temperatures up to and beyond 1800° C. | 05-10-2012 |