Funct. Mater. 2021; 28 (2): 279-286.

doi:https://doi.org/10.15407/fm28.02.279

High-strength aluminosilicate glass composite materials with special electrophysical properties

O.V.Savvova1, N.K.Blinova2, O.I.Fesenko1, G.K.Voronov1, O.V.Babich3,4, S.O.Riabinin5

1O.Beketov National University of Urban Economy in Kharkiv, 17 Marshal Bazhanov Str., 61002 Kharkiv, Ukraine
2V.Karazin Kharkiv National University, 4 Svobody Sq., 61022 Kharkiv, Ukraine
3Research Institution "Ukrainian Research Institute of Environmental Problems", 6 Bakulina Str., 61166 Kharkiv,Ukraine
4Luhansk National Agrarian University, 68, Slobozhanska Str., 92703, Starobelsk, Ukraine
5National Technical University "Kharkiv Polytechnic Institute", 2 Kyrpychova Str., 61002 Kharkiv, Ukraine

Abstract: 

For the development of compositions of high-strength protective materials, lithium-aluminum silicate glass-ceramic materials based on lithium disilicate crystals and spodumene crystals were chosen as the basis. The gradient type composite material included: a first layer with low conductivity (glass-ceramic material); the second layer with medium conductivity (glass-ceramic material and filler, silicon carbide grade 54C in an amount of 30 parts by weight per 100 parts by weight of glass); third layer with medium conductivity (thin layer of graphite,which is applied by aerosol method). It has been determined that for the developed composite materials, the formation of a gradient structure makes it possible to increase such electrical properties as tgδ from 0.005 to 0.03-0.04; ε from 4.75 to 6.0-7.0 and the strength properties KCU to 6.2 kJ/m2 and K1C up to 4.2 MPa·m1/2.

Keywords: 
gradient type radio-absorbing glass-composite materials, dielectric constant, dielectric loss tangent, mechanical properties, armor elements.

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