Abstract
IT is generally believed that twin lamellæ in deformed crystals propagate rapidly, but direct measurements of this velocity do not appear to have been made. Recent experiments on calcite (rhombohedral calcium carbonate) have shown that, in this material, twins may propagate with the modest speed of about 2 m/sec.
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References
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Cottrell, A. H., Dislocations and Plastic Flow in Crystals, 66 (Oxford, 1953).
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BOWDEN, F., COOPER, R. Velocity of Twin Propagation in Crystals. Nature 195, 1091–1092 (1962). https://doi.org/10.1038/1951091a0
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DOI: https://doi.org/10.1038/1951091a0
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