THIS PROJECT CONCERNS A UNIQUE APPROACH TO THE PRODUCTION OFHIGH ENERGY PRODUCT MAGNETS EMPLOYING RAPID SOLIDIFICATION METHODS.

Award Information
Agency:
National Aeronautics and Space Administration
Branch
n/a
Amount:
$50,000.00
Award Year:
1983
Program:
SBIR
Phase:
Phase I
Contract:
n/a
Award Id:
651
Agency Tracking Number:
651
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
885 Waterman Ave., East Providence, RI, 02914
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
MANDAYAM C. NARASIMHAN
PRINCIPAL INVESTIGATOR
() -
Business Contact:
() -
Research Institute:
n/a
Abstract
THIS PROJECT CONCERNS A UNIQUE APPROACH TO THE PRODUCTION OFHIGH ENERGY PRODUCT MAGNETS EMPLOYING RAPID SOLIDIFICATION METHODS. RIBBONS OF RARE EARTH-COBALT ALLOYS ARE RAPIDLY SOLIDIFIED TO PRODUCE A MICRON-SIZED COLUMNAR MICROSTRUCTUREAND THE COERCIVE FORCE DURING MAGNETIZATION IS CONTROLLED BY DOMAIN NUCLEATION MECHANISM. THIS EFFORT PRODUCES HIGH- CURIE-POINT, HIGH-ENERGY-PRODUCT PERMANENT MAGNETS WITH REDUCED TEMPERATURE DEPENDENCE OF THE MAGNETIZING FIELD. THIS PROGRAM IS BASED ON ESTABLISHED TECHNOLOGIES, FOR EXAMPLE, THE PLANAR FLOW CASTING PROCESS WHICH PRODUCES UNIFORMLY QUENCHED RIBBONS AND ESTABLISHED FEATURES OF THE SM-CO ALLOYS.

* information listed above is at the time of submission.

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