Temperature-compensated 2:17-type permanent magnets with improved magnetic properties
- Univeristy of Dayton, Dayton, Ohio 45469-0001 (USA)
Computer programs have been developed to predict temperature coefficients of saturation magnetization for (Sm{sub 1{minus}{ital x}}Gd{sub {ital x}}){sub 2}Tm{sub 17} magnets with higher Fe content from temperature-dependent magnetic properties of single rare-earth compositions. Very good agreement was obtained between the calculated and measured data. The composition Sm{sub 0.54}Gd{sub 0.46} (Co{sub 0.63}Fe{sub 0.29}Cu{sub 0.06}Zr{sub 0.02}){sub 7.69} exhibits a nearly zero temperature coefficient of magnetization from {minus}60 to 150 {degree}C. Its maximum energy product remains 16--17 MGOe in the temperature range of 20--200 {degree}C. A room-temperature energy product of 19 MGOe was attained for the composition Sm{sub 0.55}Gd{sub 0.45}(Co{sub 0.608}Fe{sub 0.316}Zr{sub 0.02}){sub 7.72}.
- OSTI ID:
- 7123649
- Journal Information:
- Journal of Applied Physics; (USA), Vol. 67:9; ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GADOLINIUM ALLOYS
MAGNETIC PROPERTIES
SAMARIUM ALLOYS
TRANSITION ELEMENT ALLOYS
COMPUTERIZED SIMULATION
HIGH TEMPERATURE
MAGNETIZATION
MEDIUM TEMPERATURE
SATURATION
TEMPERATURE DEPENDENCE
ALLOYS
PHYSICAL PROPERTIES
RARE EARTH ALLOYS
SIMULATION
360104* - Metals & Alloys- Physical Properties