Accession Number:

AD0734108

Title:

Internal Friction in Germanium at Low Temperatures.

Descriptive Note:

Technical rept.,

Corporate Author:

ILLINOIS UNIV URBANA DEPT OF METALLURGY AND MINING ENGINEERING

Report Date:

1971-11-01

Pagination or Media Count:

22.0

Abstract:

The internal friction of germanium crystals having various dislocation densities in the range of 1000sq. cm. to about 10 to the 7th powersq. cm. was measured in the low KHz frequency range from 80K to 473K and in the MHz frequency range at 300K. No evidence for a dislocation contribution to the internal friction was obtained. The internal friction was amplitude independent and could be accounted for by thermoelastic damping. The results were independent of the doping levels of the germanium crystals and of their orientations. Author

Subject Categories:

  • Metallurgy and Metallography
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE