Structure Formation in Nickel-Polytetrafluorethylene Composite Materials upon Explosive Pressing of Powders

摘要

In this paper, we study the features of structure formation in composite materials based on polytetrafluoroethylene containing from 50 to 90 vol % of nickel that results from the explosive pressing of powder mixtures in a cylindrical ampoule. It is revealed that, at an increase in parameters of explosive pressing, a change in the structure along the pressing radius that characterized by increased deformation of the components up to their grinding and remelting in the center of the pressing with a simultaneous increase in the physicochemical interaction of the components of the composite mixture is observed.