Low-Frequency Measurements on the Bordoni Internal Friction Peak in Copper
- 1 May 1961
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 32 (5) , 895-899
- https://doi.org/10.1063/1.1736127
Abstract
An apparatus is described for the measurement of the internal friction of metals over the temperature range of 4°–300°K at a frequency of the order of 10 cps. The Bordoni internal friction peak was observed in pure polycrystalline copper at 62°K at a frequency of 13.4 cps. By comparison with measurements at higher frequencies, a value of 0.14 ev is deduced for the activation energy. The width of the Bordoni peak is discussed in terms of distributions of activation energies and attempt frequencies.This publication has 12 references indexed in Scilit:
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