USA flag logo/image

An Official Website of the United States Government

Smart Crucibles and Heat Pipes

Award Information

National Aeronautics and Space Administration
Award ID:
Program Year/Program:
2005 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Plasma Processes, LLC
4914 Moores Mill Road Huntsville, AL 35811-1558
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2005
Title: Smart Crucibles and Heat Pipes
Agency: NASA
Contract: NNM05AA06C
Award Amount: $600,000.00


For materials processing experiments in microgravity, crucibles comprised of an internal ceramic liner in direct contact with a metal reinforcement are desired to maximize heat transfer. Previous work has demonstrated the advantages of reinforced crucibles for producing samples with enhanced microstructural features compared to samples processed in conventional ampoule/cartridge assemblies. However, incorporation of thermocouples is limited to either inside the crucible cavity or on the external surface of the metal reinforcement. The science requirements of several NASA investigators prevent the placement of thermocouples in these locations. In addition, a failure detection technique based on the use of krypton gas is required on some microgravity furnaces. During this investigation, "smart" crucibles are being developed that incorporate thermocouple grooves and a reservoir for krypton gas storage within the crucible wall, i.e., intimate contact between all layers is maintained. These same techniques can be used to fabricate refractory metal heat pipes where the wick/capillary structure is an integral part of the structure. Currently, a heat pipe cooled nuclear reactor concept (SAFE-400) is being considered for advanced space power and propulsion systems. Such an advanced reactor configuration would enable near-tern ambitious space exploration. During Phase II, smart crucibles and heat pipes will be fabricated.

Principal Investigator:

Scott O'Dell

Business Contact:

Timothy N. McKechnie
Small Business Information at Submission:

Plasma Processes, Inc.
4914 Moores Mill Road Huntsville, AL 35811

EIN/Tax ID: 631100320
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No