SBIR-STTR Award

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High Performance Ceramic Composites For Insulators For Arcjet Thrusters For On-Orbit Applications
Award last edited on: 3/4/02

Sponsored Program
SBIR
Awarding Agency
NASA : LeRC
Total Award Amount
$664,429
Award Phase
2
Solicitation Topic Code
-----
Principal Investigator
David G Paquette

Company Information

AMITA

2821 East White Star Unit B
Anaheim, CA 92806
   (714) 630-6818
   N/A
   N/A
Location: Single
Congr. District: 46
County: Orange

Phase I

Contract Number: ----------
Start Date: 00/00/00    Completed: 00/00/00
Phase I year
1995
Phase I Amount
$69,609
Operation conditions in high performance arcjets have pushed the limits of existing ceramic technology to be able to provide electrical insulators. Operation conditions are unique and require the development of unique materials. It is proposed to develop ceramic composite materials which will withstand the thermal and thermochemical environment in hydrazine or ammonia arcjets better than materials presently in use. Specimens shall be fabricated and evaluated in exposure tests at temperatures up to 2000C. After testing the ceramic composites shall be evaluated for microstructure and morphology changes and for thermochemical reactions between themselves and tungsten alloys. Barrier materials shall be identified and tested which will inhibit thermochemical reactions between the insulators and the metallic components of the arcjets. Commercial Applications:Arcjets are currently in use in commercial communications satellites. Improved insulators will find and immediate market in both arcjets and other high specific impulse thrusters.

Phase II

Contract Number: ----------
Start Date: 00/00/00    Completed: 00/00/00
Phase II year
1996
Phase II Amount
$594,820
___(NOTE: Note: no official Abstract exists of this Phase II projects. Abstract is modified by idi from relevant Phase I data. The specific Phase II work statement and objectives may differ)___ Operation conditions in high performance arcjets have pushed the limits of existing ceramic technology to be able to provide electrical insulators. Operation conditions are unique and require the development of unique materials. It is proposed to develop ceramic composite materials which will withstand the thermal and thermochemical environment in hydrazine or ammonia arcjets better than materials presently in use. Specimens shall be fabricated and evaluated in exposure tests at temperatures up to 2000C. After testing the ceramic composites shall be evaluated for microstructure and morphology changes and for thermochemical reactions between themselves and tungsten alloys. Barrier materials shall be identified and tested which will inhibit thermochemical reactions between the insulators and the metallic components of the arcjets. Commercial Applications:Arcjets are currently in use in commercial communications satellites. Improved insulators will find and immediate market in both arcjets and other high specific impulse thrusters.