MICROSTRUCTURE OF Cu2O DEFORMED SINGLE CRYSTALS

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Abstract
Cuprous oxide crystals have been deformed in high temperature compression (T > 0.5 Tm) in order to study the relation between creep and microstructure. The stress has been applied parallel to [100] with various strains from about 2 % to 30 %. Berg-Barrett X ray topography and chemical etching have been used to study lattice rotations and cell structure. In the transient state we have found four glide Systems {011} < 01[MATH] > giving rise to a characteristic creep microstructure in the steady state creep. The cell size is 40 µm after a 30 % strain. The deformation is associated with a double slip

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