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Plastic deformation of calcium tungstate single crystals has been observed to occur by slip on {100}<100> systems at temperatures in the range 800–1000°c. No plastic deformation has been observed below 800°c. The operation of these slip systems is correlated with the occurrence of low-angle dislocation boundaries parallel to <100> directions in crystals grown from the melt.
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Cockayne et al. (1964) studied this question.
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