Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy

Details Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy

2008-08-11

arxiv.org/abs/0808.1561v1

Physics

Condensed Matter

Materials Science

4 pages, 2 figures

Scientific paper

Dislocations in a material will, when present in enough numbers, change the speed of propagation of elastic waves. Consequently, two material samples, differing only in dislocation density, will have different elastic constants, a quantity that can be measured using Resonant Ultrasound Spectroscopy. Measurements of this effect on aluminum samples are reported. They compare well with the predictions of the theory.

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