Bulk, Exchange-Coupled Nitride Magnets

Award Information
Agency:
Department of Defense
Branch
Army
Amount:
$749,276.00
Award Year:
2007
Program:
STTR
Phase:
Phase II
Contract:
W911NF-07-C-0097
Award Id:
78015
Agency Tracking Number:
A064-003-0148
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
850 Poplar Street, Pittsburgh, PA, 15220
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
175305051
Principal Investigator:
S. Sankar
President
(412) 921-9600
sankar@advanced-material.com
Business Contact:
Patty Brickner
Business Manager
(412) 921-9600
patty.brickner@advanced-material.com
Research Institution:
GEORGIA INSTITUTE OF TECHNOLOGY
Professor N Thadhani
School of Mater Sc and Engg
Atlanta, GA, 30332
(404) 894-2651
Nonprofit college or university
Abstract
During Phase I, we have conducted proof-of-principle experiments to fabricate exchange-coupled isotropic permanent magnets with SmFeN-Fe4N compositions employing shock wave consolidation technique. We have also successfully synthesized nearly 100% Fe16N2 in bulk form. Under this Phase II plan, we propose to optimize and further enhance the isotropic exchange-coupled permanent magnets with higher energy products. We also propose to fabricate anisotropic exchange-coupled permanent magnets employing forging experiments concomitant with shock compaction. We will examine their texture, microstructure and magnetic properties. We will also continue our efforts to optimize the processing techniques to synthesize bulk Fe16N2 to examine if we can obtain a material with magnetic induction greater than 22 kG.

* information listed above is at the time of submission.

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