Quasicrystalline Thin Films For Corrosion Inhibition Of Aircraft Components and Assemblies

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-04-C-5027
Agency Tracking Number: F031-3902
Amount: $749,992.00
Phase: Phase II
Program: SBIR
Awards Year: 2004
Solitcitation Year: 2003
Solitcitation Topic Code: AF03-111
Solitcitation Number: 2003.1
Small Business Information
TECHNOLOGY ASSESSMENT & TRANSFER, INC.
133 Defense Highway, Suite 212, Annapolis, MD, 21401
Duns: 153908801
Hubzone Owned: N
Woman Owned: Y
Socially and Economically Disadvantaged: N
Principal Investigator
 David Palaith
 (301) 261-8373
 palaith@techassess.com
Business Contact
 Sharon Fehrenbacher
Phone: (301) 261-8373
Email: Sharon@techassess.com
Research Institution
N/A
Abstract
During the proposed Phase II effort, quasicrystalline (QC) thin films will be applied by PVD and HVOF methods to landing gear (LG) components and assemblies to inhibit corrosion. Specifically, Technology Assessment & Transfer will achieve six objectives: 1. elucidate the basic physics and chemistry of the quasicrystalline corrosion inhibition mechanism; 2. increase film durability; 3. demonstrate the corrosion inhibiting properties of quasicrystalline films when applied to LGs; 4. sputter deposit QC films onto fastener and other small components; 5. develop HVOF of QCs as a commercial film deposition technology; 6. transfer both PVD and HVOF coating technologies to LG ALCs. LG alloys to be studied will include aircraft aluminum alloys 2024 and 7xxx, and high strength steels 4330, 4340, and 300M. Coatings will be evaluated for adhesion, crystal structure, morphology, corrosion resistance, and toughness. Evaluation methods will include Superficial Rockwell hardness, Rockwell hardness for toughness, SEM, XRD, EDS, and potentiodynamic scans (PDS) for corrosion. Initial coating evaluation will be performed on flat coupons of the appropriate LG alloy compositions.

* information listed above is at the time of submission.

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