Plane-Wave Sound Radiation from Mobile Dislocation Walls
- 20 October 1969
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 23 (16) , 918-921
- https://doi.org/10.1103/physrevlett.23.918
Abstract
Thin walls of mobile dislocations have been produced. When stimulated by a plane ultransonic wave, the cylindrical waves radiated from each dislocation are all in phase and produce a plane radiated wave. As each dislocation contributes in the same way, the detected macroscopic plane wave directly measures the microscopic motion of individual dislocations. Radiation-induced pinning-point changes and orientation effects are evidence that the signal comes from moving and not from static dislocations.Keywords
This publication has 4 references indexed in Scilit:
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- Observations of Dislocation Glide and Climb in Lithium Fluoride CrystalsJournal of Applied Physics, 1956
- Theory of Mechanical Damping Due to DislocationsJournal of Applied Physics, 1956
- Diffraction Effects in the Ultrasonic Field of a Piston Source and Their Importance in the Accurate Measurement of AttenuationThe Journal of the Acoustical Society of America, 1956