Nano-Enhanced CMC Clutch Material

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA8650-06-M-5238
Agency Tracking Number: F061-090-2123
Amount: $99,998.00
Phase: Phase I
Program: SBIR
Awards Year: 2006
Solicitation Year: 2006
Solicitation Topic Code: AF06-090
Solicitation Number: 2006.1
Small Business Information
209 Puente Ave., City of Industry, CA, 91746
DUNS: 026249487
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Wei Shih
 (626) 369-1273
Business Contact
 Wei Shih
Title: President
Phone: (626) 369-1273
Research Institution
The state-of-the-art clutch plate for the lift systems is made of carbon-carbon composites and is challenged to meet future life and frictional requirements. This clutch is very similar in configuration to an aircraft brake, but operates at significantly higher speeds approximately 8500 rpm. Generally speaking, the clutch plates are required to withstand a high shear load, resist sliding wear, withstand high peak temperatures, and have high static and dynamic friction coefficients to minimize slippage. The clutch plates also need high thermal capacity to dissipate large amounts of frictional energy introduced at a very high rate during engagement. A new family of nano-reinforced ceramic matrix composites (CMC) is proposed as the next generation frictional materials for improved wear and frictional performance. Although the frictional performance data of CMC are very limited, there are enough evidences indicating CMC or C-SiC in specific may ameliorate many deficiencies associated with their C-C counterpart. Under this proposed effort, carefully selected CMC candidates will be fabricated using production-ready materials and processes. Candidate materials will be tested on dynamometer under realistic conditions. Performance trends will be established and used for further optimization.

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

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