Protective properties of a multicomponent material when irradiated by electrons with an energy of 5 MeV and gamma radiation with an energy from 0.570 to 1.252 MeV

The synthesis of a multicomponent material intended for use as protection for astronauts and spacecraft equipment from cosmic radiation is presented. PTFE-4 was chosen as a binder for the multicomponent material. The following components were introduced into the matrix as fillers: bismuth oxide, tungsten carbide, titanium hydride fraction and boron carbide. The synthesis of the material was carried out through solid-phase compaction, followed by cooling to room temperature, pressing out with further sintering. Its physical and mechanical properties have been studied: the value of erosive wear, Vickers microhardness, elastic modulus. Experimental irradiation of a multicomponent material with gamma radiation was carried out. The values of the linear attenuation coefficient of gamma radiation and the mass attenuation coefficient of gamma radiation are calculated. A multicomponent material was irradiated with fast electrons in a vacuum. It has been established that at an absorbed electron dose of 5 MGy, a twofold decrease in the bending strength of the multicomponent material is observed.