Date: Nov 15, 2013 Source: MDA (
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Plasma Processes, Inc. (Huntsville, AL), is developing a "green" propellant that should help reduce the environmental impact of commercial satellites.
Chemical propulsion systems for satellites typically have used highly toxic hydrazine-based propellants, which can be physically unstable. Plasma Processes is working toward a less toxic, more stable propellant--with a lower freezing point. The propellant can be preloaded into satellites before system integration of thruster components during manufacture.
Field tests conducted by the company and its industry partners show that the propellant combusts while discharging only clean, colorless exhaust, according to the company.
Plasma Process anticipates its propellant will be used for satellite engines, reaction-control systems, auxiliary power units, and divert and attitude control systems.
MDA originally funded Plasma Processes in a 2008 SBIR Phase II contract to develop technology to enhance the performance and cost-effectiveness of missile defense systems.
Plasma Processes specializes in providing rocket engine components, high-temperature materials, and complete surface-coating solutions to commercial and government customers.