Creation of Mesostructural Material with Nanocrystalline Inclusions of Titanium Diboride by Quasidynamic Method

Fabrication and characterization of new high-strength mesostructural composite （MC） is investigated in this study. Method ofquasidynamic compaction is used to receive MC from mixes of powders. MC is comprised by copper and reinforcing component - inclusions. Inclusions are produced by self-propagating high-temperature synthesis （SHS）. Inclusions consist of 60% copper and 40% nanosize particles of titanium diboride （TiB2）. Powders were mixed in high-energy planetary spherical mill prior to compaction. The structural evaluation of initial components is studied by the X-ray spectrometer INCA Energy and SEM observation. Following properties of fabricated MC is studied also： strength properties in quasistatic uniaxial compression, microhardness and electric resistance. The mechanical properties of MC are likened to internal-oxidized copper alloy. Microhardness and yield stress increased more than 1.5 times. Values of electric resistance for the investigated materials insignificantly differ from electric resistance of internal-oxidized copper alloy.