High-Temperature Magnets Enable Space Power Generation and Propulsion
NASA Tech Briefs, Aug 2004
Samarium cobalt high-temperature magnets
Electron Energy Corp. (EEC)
Landisville, PA
800-824-2735
Samarium cobalt (SmCo) magnets provide designers with a material that is a few times higher in energy density than other high-temperature magnet materials, allowing the creation of smaller assemblies and systems that can operate in a wider thermal range. Commercial, land-based uses that are emerging for this high-temperature magnet material include applications with sensors, instrumentation, generators, actuators, vacuum, medical, and semiconductor processing equipment.
SmCo magnets designed and manufactured by EEC have been used in NASA's Deep Space 1 Ion Engine, which was launched in 1998. Now, EEC has been awarded a Small Business Technology Transfer Research (STTR) contract by NASA's Glenn Research Center in Cleveland, OH, to study the effects of radiation and thermal stability of SmCo high-temperature permanent magnets for both space power generation using Stirling linear alternators, and for ion propulsion thrusters.
The research program will study the effects of high temperatures and radiation on physical and magnetic properties. The research also will aim to improve thermal stability in a vacuum at temperatures up to 550°C. Based on the research findings, improvements to magnets will be made to enhance the performance of high-power ion propulsion engines.
For Free Info Visit http://info.ims.ca/30577-117
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