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High Temperature Sm(Co,Fe,Cu,Zr)z/Fe-Co Nanocomposite Permanent Magnets with High Energy Density

Award Information
Agency: Department of Defense
Branch: Air Force
Contract: FA9550-05-C-0117
Agency Tracking Number: F054-024-0221
Amount: $100,000.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: AF05-T024
Solicitation Number: N/A
Solicitation Year: 2005
Award Year: 2005
Award Start Date (Proposal Award Date): 2005-07-15
Award End Date (Contract End Date): 2006-04-15
Small Business Information
74 Batterson Park Road, Farmington, CT, 06032
DUNS: 003614153
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Heng Zhang
 (860) 678-7561
Business Contact
 David Reisner
Title: President & CEO
Phone: (860) 678-7561
Research Institution
 Jeremy Forsberg
 Research Administration, Box 19145
Arlington, TX, 76019
 (817) 272-3657
 Nonprofit college or university
Air Force seeks innovative permanent magnets for high temperature application in air and space vehicles. This requires the use of novel permanent magnets with high coercivity and saturation magnetization up to 450oC with an energy product of 30 MGOe. Inframat Corporation proposes to demonstrate the feasibility of fabricating an exchange-spring coupled Sm(Co,Fe,Cu,Zr)z/Co-Fe nanocomposite permanent magnet with operating temperature up to 500oC. In this project, a chemical synthesis and coating method will be utilized to fabricate soft/hard magnetic composites. The high-temperature hard-magnetic phase Sm(Co,Fe,Cu,Zr)z will be fabricated using a powder metallurgy combined with intensive milling. Nanostructured soft magnetic Co-Fe with high saturation magnetization will be coated onto the surface of the Sm(Co,Fe,Cu, Zr)z nanoparticles using chemical deposition to form a uniform Sm(Co,Fe,Cu,TM)z/Co-Fe nanocomposite. The exchange-spring quantum mechanical effect will be accomplished by consolidation of the nanocomposite powders into a fully dense bulk material. The proposed procedures will efficiently control the microstructure, morphology and interface of the composite, and significantly enhance the exchange-coupling effects, leading to a large remanence, high coercivity and high energy density at elevated temperature. The proposed nanocomposite magnet will impact the high technology applications. This program is a joint collaboration between Inframat and University of Texas at Arlington.

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

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