| Issue |
J. Phys. Colloques
Volume 49, Number C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-1939 - C8-1940 | |
| DOI | https://doi.org/10.1051/jphyscol:19888877 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1939-C8-1940
DOI: 10.1051/jphyscol:19888877
Ames Laboratory, Iowa State University, Ames, Iowa 50011, U.S.A.
J. Phys. Colloques 49 (1988) C8-1939-C8-1940
DOI: 10.1051/jphyscol:19888877
MAGNETOACOUSTIC EMISSION AND DISCONTINUOUS MAGNETOSTRICTION IN TERFENOL - D
D. C. Jiles, J. E. Ostenson et C. V. OwenAmes Laboratory, Iowa State University, Ames, Iowa 50011, U.S.A.
Abstract
This paper reports measurements of magnetostriction λ and magnetoacoustic emission MAE in a specimen of the most recent Tb0.3Dy0.7Fe1.9 produced at Ames Laboratory. This specimen was produced by float zone solidification and was then annealed at 950 °C for one hour. The magnetostriction in a field of 3,000 Oe, under a compressive stress of 14 MPa, reached 2, 200 x 10-6. Magnetoacoustic emission signals were found to exhibit peak activity close to the maxima in dλ / dH.