Digitale Medien
[S.l.]
:
American Institute of Physics (AIP)
Journal of Applied Physics
87 (2000), S. 8653-8657
ISSN:
1089-7550
Quelle:
AIP Digital Archive
Thema:
Physik
Notizen:
Equivolume composites of melt-spun Tb0.5Dy0.5Fe2 in an Fe matrix have been consolidated by hot pressing over a range of temperatures. We find that both the magnetic field dependence of the magnetostriction λ(H) and the torque response Rτ of these materials in a sensor configuration depend strongly on the consolidation temperature. As the hot press temperature increases, λ(H) becomes sharper, generating higher strains at lower applied fields, higher values of the maximum slope dλ/dH, and more nearly saturated λ(H) at the maximum applied field of 19 kOe. These changes in magnetostriction are closely correlated with the observed response of the composites in a torque test. For a composite hot pressed at 755 °C we observe Rτ=6.3 G/100 ppm, a value which is twice that obtained for material consolidated at 550 °C and nearly a factor of three greater than the response of maraging steel. © 2000 American Institute of Physics.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.373592
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