ARC DISCHARGE SYNTHESIS OF MATERIAL BASED ON GRAPHITE AND MOLYBDENUM CARBIDE

Abstract

The experimental study results of synthesizing molybdenum carbide in a plasma of a direct-current arc discharge by the vacuum-free method are presented. The influence of the current amplitude of the discharge circuit on the phase composition of the synthesis product is established. The synthesis product contains a microdimensional component and a nanosized one. The scanning electron microscopy (SEM) and X-ray diffractometry methods identified carbon fibers with a graphite structure and modified fibers containing graphite and molybdenum carbide as part of the microsized component. The nanoscale component contains clusters of particles that are a graphite matrix in which molybdenum carbide particles are immersed.