Synthesis of heat-resistant oxygen-free coatings in the Nb‒Cr‒Mo‒Si‒B system from compositions modified with chalcogenide compounds of refractory metals of groups IV‒VIa

Abstract

The results of studies on the modification of the composition of compositions in the Nb‒Cr‒Mo‒Si‒B system with molybdenum chalcogenides are presented. The positive effect of using MoS 2 and MoSe 2 as an integral part of multicomponent oxygen-free compositions associated with the formation of a highly active form of elemental molybdenum as a result of their dissociation, which determines the high heat resistance of the coating formed on their basis, is shown. Ill. 4. Ref. 45. Tab. 3.