Abstract
The deformation and microfracture properties of quartz crystals were studied by scratching experiments. The critical load at which microfractures are initiated was found to be orientation dependent, whereas the average width of ductile grooves and chips remained relatively insensitive to crystal orientation. In contrast, a marked anisotropy in the shape of chips was observed. This anisotropy has been interpreted in terms of microfractures propagating preferentially along slip planes. Simple geometrical conditions for the SEM observation of active slip planes are proposed.
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Tellier, C.R., Benmessaouda, D. Scratching experiments on quartz crystals: orientation effects in chipping. JOURNAL OF MATERIALS SCIENCE 29, 3281–3294 (1994). https://doi.org/10.1007/BF00356676
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DOI: https://doi.org/10.1007/BF00356676