Abstract
THERE are many indications that surface imperfections of the crystal lattice play a marked part in the initiation of the glide that results when single crystals are subjected to stress. Orowan1 and others have discussed the matter from the theoretical side. From the experimental side, Roscoe2, working in my laboratory, has shown that a very thin oxide film on the surface produces an increase in the resistance to plastic deformation, which cannot be due to the cohesion of the film, and Rehbinder3 has shown that very thin surface films of certain substances, applied to single crystals, produce striking effects.
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References
For example, Z. Phys., 89, 605, 614, 634 (1934).
Phil. Mag., 21, 399 (1936).
The papers describing Rehbinder's work were given to me on my recent visit to Russia, but I have mislaid them and hence cannot give the reference. I hope later to write a note in Nature describing this very interesting work.
Proc. Roy. Soc., A, 175, 290 (1940).
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ANDRADE, E. Effect of Alpha-Ray Bombardment on Glide in Metal Single Crystals. Nature 156, 113–114 (1945). https://doi.org/10.1038/156113b0
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DOI: https://doi.org/10.1038/156113b0
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