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In this study, the effect of NbSi 2  in the range from 10 to 90 wt% was investigated. on the properties of composites (Mo 1-x Nb x )Si 2  obtained by hot pressing a solid-phase mixture of molybdenum and niobium disilicides at a temperature of 1700°C. Graphs of the dependence of density, bending strength, electrical resistivity, CLTE and microhardness of the content of NbSi2 were obtained. It was found, that with an increasing level of NbSi 2  in the content, the flexural strength drops to 130 MPa. The electrical resistivity depending on the content of niobium silicide is extreme with a maximum for the composition (Mo 0,5 Nb 0,5 )Si 2 . In the concentration range of NbSi 2  20-100 wt.% CLTE and microhardness of the composite within the error does not change.

Physical and chemical properties of composite (Mo1-xNbx)Si2

Physical and chemical properties of composite (Mo_1-xNb_x)Si₂