𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Damping of acoustic waves in metals at low temperatures

✍ Scribed by Kailash; S.K. Kor

Publisher
Elsevier Science
Year
1987
Weight
369 KB
Volume
145
Category
Article
ISSN
0378-4363

No coin nor oath required. For personal study only.

✦ Synopsis

The theory for studying the damping of acoustic waves in metals is evolved in the low temperature region and zero magnetic field starting from primary physical constants and assuming basic potentials. The theory is tested for some highly conducting and transitional metals, viz. aluminium, nickel, copper and lead. It is observed that a sharp change in damping occurs if the temperature is elevated and damping is very high around 10 K. The experimental evidences are found in good agreement with present values. It is concluded that the damping is one of the characteristic properties of metals.

πŸ“œ SIMILAR VOLUMES

Acoustic properties of metallic glasses
Acoustic properties of metallic glasses at low temperatures
✍ Roland GΓΆrlich; JΓΌrgen Stockburger; Ulrich Weiss πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 323 KB

Internal friction Q-1 and change of sound velocity ti.v/v of metallic glasses are considered within the two-level system model. The effects of the interaction with conduction electrons are systematically taken into account. For acoustic frequencies and very low temperatures a lower bound in the tunn

Selective damping of resonant acoustic w
Selective damping of resonant acoustic waves in tubes
✍ S. Temkin πŸ“‚ Article πŸ“… 1974 πŸ› Elsevier Science 🌐 English βš– 496 KB

A study ofacoustic energy dissipation in a resonant tube fitted at or~e end with a hollow rod is presented. The inside diameter of the rod is a small fraction of the tube's diameter, so that the nature of the acoustic field in the tube is, in general, not significantly affected by the opening. It is