Neutron Diffraction Study of Ordered Structures and Phase Transitions in Vanadium Subcarbide

The results of neutron diffraction study of VC0.47 are presented and discussed. It is established scheme of the phase transitions. A low temperature orthorhombic ordered phase (space group Pbcn) and high temperature hexagonal ordered phase (space group P6322) exists in VC0.47. The kinetic of the transition is described by Kolmogorov – Johnson – Mehl – Avrami law.