Machines. Technologies. Materials.
Vol. 15 (2021), Issue 2, pg(s) 62-66

MATERIALS

High-temperature layered composite with a metal matrix, reinforced with single-crystal sapphire fibers

  • 1 Institute of Solid State Physics RAS, Chernogolovka, Moscow Region, Russia

Abstract

Heat-resistant composites with a layered niobium-based matrix reinforced with single-crystal sapphire fibers have been obtained. The fibers were grown from the melt by the modified Stepanov method. The composites were prepared by solid-phase technology by diffusion welding of multilayer packages of foils of the Nb–0.1% C and aluminum alloy, interlaid with sapphire fibers in layers of a suspension mixture of Nb powder. The production of fibers, their structure and strength testing procedure are described. The formation of multilayer packets, the structure and results of bending strength tests of composites are presented

Keywords

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