THE STATIC WAVES OF ATOMIC DISPLACEMENTS ACCUMULATION EFFECT, INSIDE A ZONE OF ELASTIC TO PLASTIC TRANSFORMATION

Fullerene relaxation occurs under impulsive deformations: pressure, te nsion, shear and shear + pressure combinations are considered in this work. The empiric pair Lennard-Jones potential was used as the intermo lecular interaction potential. The deformation range, where the crysta l behaves elastically, was investigated. The wave generation and loss of crystal stability characters is dependent on stress type allowing t he level to be deduced. As a result of this research, four main phases of crystal relaxation were discovered: (1) stable phase-homogeneous s table deformed crystal; (2) waves of static fullerene chains generatin g displacement; (3) dislocation generation. It was shown thar there ar e several main relaxation types inside the frame of Hooke's law depend ent stress type and its level. (C) 1998 Elsevier Science Ltd. All righ ts reserved.