The effect of the addition of magnetite in the form of pyrite stubs on the physico-mechanical and radio-absorbing properties of the synthesized glass composite by the method of “cold” foaming is considered. Replacing glass powder with magnetite in the initial liquid-glass composition reduces the foaming coefficient from 80 to 20 %, which is due to a decrease in the viscosity of the composition due to the particle size of the additive (160 ?m), their high density (5100 kg/m3) and porous structure. It has been established that the optimal content of magnetite for obtaining a material with radio-absorbing properties is no more than 10 %. A porous glass composite with an average pore size of 2, containing 10 % magnetite, has an absorption coefficient of electromagnetic radiation in the high-frequency range (120 – 250 GHz) on average 10 % more than a composite without an additive.
Kirill V. Skirdin – postgraduate student, Tomsk Polytechnic University, N. M. Kizhner research center, Engineering School of New Production Technologies (ISNPT), Tomsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Kirill V. Dorozhkin – junior researcher, Department of Radio Electronics, Scientific Laboratory of Terahertz Research, Tomsk State University (TSU), Tomsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
Olga V. Kazmina – doctor of technical sciences, professor of the N. M. Kizhner Research Center, Engineering School of New Production Technologies (ISNPT), Tomsk Polytechnic University, Tomsk, Russia. E-mail: This email address is being protected from spambots. You need JavaScript enabled to view it..
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