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Nanocomposite Scandate Tungsten Powder for High Current Density and Long Life Thermionic Cathodes

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00253-15-P-0314
Agency Tracking Number: N15A-010-0054
Amount: $149,966.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N15A-T010
Solicitation Number: 2015.0
Solicitation Year: 2015
Award Year: 2015
Award Start Date (Proposal Award Date): 2015-07-20
Award End Date (Contract End Date): 2017-02-28
Small Business Information
110 Commerce Circle
Sacramento, CA 95815-4202
United States
DUNS: 112683206
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Neville Luhmann
 (530) 752-5414
Business Contact
 Carl Schalansky
Title: Technical Point of Contact
Phone: (916) 925-6100
Research Institution
 University of California, Davis
 Dr. Neville Luhmann, Jr.
UC Davis 2064 Kemper Hall
Davis, CA 95616
United States

 (530) 752-5414
 Nonprofit College or University

Vacuum Process Engineering Inc. in collaboration with the UC Davis millimeter wave research group proposes to develop a large scale production process for nanocomposite scandate tungsten powder for advanced high current density and long life thermionic cathodes that have been previously demonstrated by UC Davis to be superior to the commercially available state-of-the-art. The produced cathodes demonstrated over 100 A/cm^2 loading at 1050C and over 40 A/cm^2 current loading at 850C with lifetime of over 20,000 hours. The team will develop a process that could be scaled up to 300-500 kg per year and confirm the high quality of the produced powder by providing detailed powder evaluation data as well as cathode testing results in diode type and Pierce gun type test vehicles for pulsed and continuous wave operation. Finally, the team will provide cathode samples for independent evaluation in real devices by CPI, L-3 Electron Devices, Teledyne MEC, SLAC, and JPL as attested to by collaboration endorsement letters. Semicon Associates will provide necessary support for packaging development and delivery to the customers. Dr. Randall German will provide powder metallurgy consulting services to the team for development of reliable and consistent large scale powder manufacturing process.

* Information listed above is at the time of submission. *

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