| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-309 - C8-310 | |
| DOI | https://doi.org/10.1051/jphyscol:19888139 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-309-C8-310
DOI: 10.1051/jphyscol:19888139
1 Department of Metal Science and Technology, Kyoto University, Sakyo-ku, Kyoto 606, Japan
2 Sumitomo Special Metals Co., Ltd., Shimamoto-cho, Osaka 618, Japan.
3 Zeze High School, 2-11-1 Zeze, Ohtsu 520, Japan.
J. Phys. Colloques 49 (1988) C8-309-C8-310
DOI: 10.1051/jphyscol:19888139
LOW TEMPERATURE ANOMALY OF ELASTIC CONSTANTS IN Fe-Ni AND Fe65 (Ni1-xMnx)35 INVAR ALLOYS
M. Shiga1, K. Makita2, K. Uematsu3 et Y. Nakamura11 Department of Metal Science and Technology, Kyoto University, Sakyo-ku, Kyoto 606, Japan
2 Sumitomo Special Metals Co., Ltd., Shimamoto-cho, Osaka 618, Japan.
3 Zeze High School, 2-11-1 Zeze, Ohtsu 520, Japan.
Abstract
The temperature and frequency dependence of elastic constants, CL, C44 and C' of Fe-Ni and Fe65 (Ni1-xMnx)35 Invar alloys have been measured by means of an ultra-sonic pulse echo technique. It has been revealed that (1) the anomalous increase in CL at low temperatures is the largest for Fe65Ni35; (2) the characteristic temperature of this anomaly, T*a, is higher than that of other low temperature anomalies and (3) T*a shows a frequency dependence.