Acoustic quality factor of copper, brass and beryllium copper from 50 mK to 300 K.

Author(s) : DUFFY W. Jr

Type of article: Article

Summary

The amplitude-independent background mechanical quality factors (reciprocal internal frictions) of oxygen-free electronic copper, free-turning brass and beryllium copper were measured. The resonant frequency dependence on temperature was also obtained, giving the temperature dependence of the dynamic shear modulus. Strongly enhanced quality factors were obtained from appropriate heat treatment.

Details

  • Original title: Acoustic quality factor of copper, brass and beryllium copper from 50 mK to 300 K.
  • Record ID : 1993-2407
  • Languages: English
  • Source: Cryogenics - vol. 32 - n. 12
  • Publication date: 1992

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