The annealing of copper precipitate colonies in silicon single crystals has been followed in situ in the electron microscope hot stage. The colony dissolution was found to be a two-stage process; the first stage involved the enveloping dislocations and the precipitates attached to these only. The onset of the second stage was associated with a phase transformation and the generation of dislocations from all of the colony precipitates.
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Nes et al. (1973) studied this question.
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