Abstract

The distribution of etch pits on slightly deformed KCl whiskers is examined. Linear alignments are observed in edge dislocation bands, but a diffuse distribution is observed in screw dislocation bands at the initial stage of deformation. The distribution of etch pits in screw bands rapidly becomes linear when strain is increased. The length of edge bands is about 4 times larger than that of the corresponding screw bands on the average. This result may indicate that the velocity of edge dislocations Ve, is larger than that of screw dislocations Vs. However, the value of Ve/Vs for KCl whiskers seems to be far smaller than that for LiF crystals. These experimental results are consistent with the prediction deduced from the preceding studies.

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