The structural effects of ball milling powders of CdS and CdSe have been investigated by X-ray diffraction. When initially wurtzite-phase material was ball milled, excessive broadening and the selective extinction of certain diffraction lines were observed in Debye-Scherrer diffraction photographs of CdS and diffractometer traces of CdSe. These effects culminated in the disappearance of all but the three reflections from the (00.2), (11.0) and (11.2) planes. The fact that these reflections would coincide with those that would arise from the (111), (220) and (311) planes of the cubic sphalerite phase has led to earlier interpretations of similar effects in these and related materials as arising from a wurtzite to sphalerite transformation. Such a model does not fully account for the effects observed here. However, a careful examination of structure factors suggests an alternative explanation based on randomization due to structure deformation by faulting.
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Durose, K., Fellows, A.T., Brinkman, A.W. et al. Structural aspects of ball milled CdS and CdSe. J Mater Sci 20, 3783–3789 (1985). https://doi.org/10.1007/BF01113788
- Structure Factor
- Alternative Explanation
- Ball Milling