Sound velocity of glassy Pd{sub 80}Si{sub 20} after heavy-ion irradiation at low temperatures.
Specimens of glassy Pd{sub 80}Si{sub 20} were irradiated at temperatures below 100K with 3.5 MeV krypton ions. After irradiation, changes in the sound velocity were measured at 80 K without warm-up by Brillouin scattering. The sound velocity decreased with increasing ion fluence and exponentially approached a saturation value of -4.7%. The change in the shear elastic modulus per unit concentration n of defects was estimated to be d(ln C)/dn = -9.4 to -4.7. The results of the present study are compared with changes in the elastic properties predicted recently by an interstitialcy model for glassy metals, and with the elastic properties of glassy metals after thermal treatment.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC; OUS
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 961226
- Report Number(s):
- ANL/MSD/JA-45546
- Journal Information:
- Philos. Mag. A, Journal Name: Philos. Mag. A Journal Issue: 11 ; 2002 Vol. 82
- Country of Publication:
- United States
- Language:
- ENGLISH
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