Using the isotropic elastic crystal model, it was shown that the formation of planar layers consisting of edge dislocation pile-ups was advantageous in energy if the shear modulus of the crystal was far lower than the bulk modulus. As the pressure increased, the dislocation radius decreased; potentially destroying the crystal structure

Pressure-Induced Dislocation Amorphization of Crystals. P.N.Timonin: JETP Letters, 2002, 76[1], 37-9