Ultra High Temperature Hafnium-based Materials for Propulsion Technologies

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: HQ0147-12-C-7127
Agency Tracking Number: B2-1843
Amount: $1,000,000.00
Phase: Phase II
Program: SBIR
Awards Year: 2012
Solicitation Year: 2010
Solicitation Topic Code: MDA10-019
Solicitation Number: 2010.3
Small Business Information
Plasma Processes, LLC
4914 Moores Mill Road, Huntsville, AL, 35811-1558
DUNS: 799114574
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Daniel Butts
 Materials Engineer
 (256) 851-7653
 dbutts@plasmapros.com
Business Contact
 Timothy McKechnie
Title: President
Phone: (256) 851-7653
Email: timmck@plasmapros.com
Research Institution
 Stub
Abstract
Rhenium is the current material of choice for Divert and Attitude Control Systems (DACS) components of due to its erosion resistance, high-temperature strength and compatibility with propellant products. However, disadvantages of Re include high cost and high density. Alternatives to Re such as composites, refractory metal alloys, and monolithic ceramics have been proposed, but all possess strength, oxidation and/or cost limitations. Materials based on the Hf-Ta-N system have potential of meeting service temperature, oxidation resistance, and thermal shock requirements for advanced 2760 degrees C (5000 degrees F) DACS. This potential was demonstrated during a Phase I effort where Plasma Processes established VPS parameters to fabricate dense specimens for characterization and oxidation evaluations. Oxidation studies identified a chemistry that demonstrated superior oxidation resistance. Though materials based on the Hf Ta N system appear promising, a methodical approach to material optimization and evaluation is warranted in order to sufficiently mature the technology for MDA system integration. The technical objective of a Phase II effort is to execute a methodical approach to further develop the Hf-Ta-N system, with the goal ultimately identify optimum chemistries capable of replacing Re components of DACS systems with 50% cost savings and 30% weight savings. Specific tasks will include processing optimization; characterization; oxidation studies; mechanical testing; and hot fire testing evaluations. This proposed material development effort will be directly beneficial to upgrades for SM-3, THAAD, Airborne Weapon Layer, Sea-based Terminal defense and various tactical missile systems.

* information listed above is at the time of submission.

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