INVESTIGATION OF THE FEATURES OF SINGLE-PHASE SYNTHESIS BINARY INTERMETALLIC COMPOUND NBBE3

Abstract

Intermetallic compounds of beryllium with refractory materials (niobium, tantalum, zirconium, etc.) have outstanding characteristics in terms of heat resistance, high-temperature corrosion resistance, and hardness. At the same time, despite the impressive physical and mechanical properties of beryllides, the existing methods for obtaining products from these materials have not yet passed into the stage of industrial production. In this work, attention is focused on the study of the synthesis of the binary intermetallic compound of niobium beryllide NbBe3. The main research method was X-ray phase analysis of cold-pressed stoichiometric mixtures of beryllium and niobium powders pre-sintered at different temperatures and for different time intervals. In this case, temperature-time dependences of the qualitative composition of powders were obtained. The results of the study will make it possible to determine the optimal technological modes for obtaining blanks of a monophasic composition