The Analysis of the Mechanisms for Plasticization of Boron Carbide Ceramics Irradiated by an Intense Electron Beam

摘要

Is has been shown that irradiation of the sintered ceramics on the basis of boron carbide with an intense pulsed electron beam leads to formation of non-porous polycrystalline structure. The specific elements of a sub-grain structure of the irradiated ceramics are micro-twins. It has been determined that the main failure mechanism of the sintered ceramics is an intercrystalline fracture. The irradiation of ceramics has led to mainly transcrystalline fracture.