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Functionally Graded Nano-Composite for Gear Applications

Award Information
Agency: Department of Defense
Branch: Navy
Contract: N00014-05-M-0248
Agency Tracking Number: N054-006-0088
Amount: $69,985.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: N05-T006
Solicitation Number: N/A
Solicitation Year: 2005
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-08-01
Award End Date (Contract End Date): 2006-05-31
Small Business Information
133 Defense Highway, Suite 212
Annapolis, MD 21401
United States
DUNS: 153908801
HUBZone Owned: No
Woman Owned: Yes
Socially and Economically Disadvantaged: No
Principal Investigator
 Christopher J Duston
 Program Manager
 (410) 987-3435
Business Contact
 Sharon Fehrenbacher
Title: CEO
Phone: (410) 224-3710
Research Institution
 Shridhar Yarlagadda
201 Composites Mfg. Lab
Newark, DE 19716
United States

 (302) 831-4941
 Nonprofit College or University

The U.S. Navy is seeking improved durability, increased life and reduced maintenance for aircraft, particularly rotorcraft, by increasing the hardness of gears and bushings. They have suggested that the incorporation of nano-sized materials to create a functionally graded surface may provide this advantage. Such a compositionally graded structure offers the tooth surface offers the high hardness required to impart surface durability under very demanding contact conditions; the subsurface case region provides the strength gradient; and the core region with low to medium hardness of HRC 35-40 (VHN 345-390) provides a substrate with high toughness. Technology Assessment, in association with the University of Delaware and SSI Technologies has proposed to form a functionally graded surface during gear manufacture.

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

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