Sintering and physico-mechanical properties of materials based on silicon nitride nanoscale powders

Abstract

Obtained a high-density material (ρ = 3,28 g/cm3, a porosity of 1,4 %) on the basis of silicon nitride powder by liquid phase sintering nanoscale. Displaying pressing pressure on the density of sintered materials the based silicon nitride. The process of pattern formation material during sintering. The main physico-mechanical characteristics: the density, porosity and grain size of the solid phase, the modulus of elasticity, flexural strength, fracture toughness ratio, Vickers hardness