Intragranular deformation mechanisms in calcite deformed by high-pressure torsion at room temperature

Polycrystalline calcite was deformed to high strain at room-temperature and confining pressures of 1–4 GPa using high-pressure torsion. The high confining pressure suppresses brittle failure and allows for shear strains >100. The post-deformation microstructures show inter- and intragranular cataclastic deformation and a high density of mechanical e $ \left\{01\overline{1}8\right\} Read more