Preparation of polymer composite material with Fe2O3 nanoparticles synthesized with low-temperature plasma under ultrasonic action

Estimation of the thermophysical properties of heat-protective composite materials

“…A modern methodology for solving inverse coefficient problems is proposed in [32][33][34][35][36][37]. The works [38][39][40][41][42][43][44][45][46][47][48][49] also solve direct problems of determining temperature fields in composite materials characterizing by significant anisotropy of properties, using both analytical and numerical methods, as well as describe experiments to determine the properties of composite materials. In this paper, we consider a composite material in which the matrix is air, and inclusions are cylindrical fiber inclusions.…”

Synthesis and dielectric properties of metal-ceramic nanostructures

“…This behaviour of multilayer structures can be explained by assuming that the charge transfer in composite layers whose composition is up to the percolation threshold is not through the dielectric phase but through a lower resistive semicon- ductor interlayer. On the other hand, in composites after the percolation threshold, where an infinite network of adjoining metal granules is formed, the channel resistance increases due to the interaction of silicon with the metal phase and the formation of iron and cobalt silicides, which have a higher resistivity than that of pure metals [39][40][41][42][43][44][45][46]. When the thickness of the composite becomes significant, the effect of silicides on the electrical transfer process in (Co45Fe45Zr10)x(Al2O3)1-х after the percolation threshold is reduced.…”

Effect of elevated temperature on critical load in stability tests of the steel plate

“…Samples of rolled steel sheets with a constant thickness of 0.7 mm and, depending on the batch, different lengths and widths without and with coating were considered [26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43]. A EUROPOLVERI epoxy-polyester powder coating (RAL 9010, Italy) with a thickness of approximately 250 μm with a ±30 μm spread was applied electrostatically.…”