It was reported that 10% plastic deformation of a polycrystalline nitride sample, at temperatures ranging from 1500 to 1650C, created a new type of intragranular defect. When observed using transmission electron microscopy, they resembled torsion sub-boundaries that were created by dislocations with 1/3<11•0> Burgers vectors, so that the nodes were dissociated into Shockley partials. The defects were located in the basal plane, and appeared only in plane areas of grown-in defects, such as inversion domain boundary. The formation of these faulted networks was suggested to be the final stage in a series of interactions between inversion domain boundaries and glide dislocations.

V.Feregotto, J.P.Michel: Journal de Physique III, 1996, 6[9], 1261-9