News Academy of Engineering Sciences A.M. Prokhorov Annotation << Back High-temperature researches of radiotechnical composite materials V.A. Diakonov N.I. Arslanova E.S. Lukin B.F. Pronin E.N. Filatov This paper presents the results of developments and research carried out on radio heat-shielding composites. The main properties of SiO2-SiO2 composites were given, while their strength and thermal properties over the entire range of operating temperatures were investigated. The results of the research – aimed at increasing the temperature stability of SiO2-SiO2 materials – were presented. The effect on short-term temperature stability by refractory oxides ZrO2 and Cr2O3 introduced into the structure of the material with water-soluble precursors was shown. Comparative tests of initial and modified materials when heated using a high-temperature gas flame were carried out. Results obtained from these tests were assessed. Keywords: Heat-proof materials, intense heat, dielectric properties, radio materials. Contacts: E-mail: info@kompozit-mv.ru Pp. 38-41.