Model composition heat-resistant materials for multifunctioal coating
Heading:
| 1Husarova, IA, 1Potapov, OM, 2Gorelov, BM, 3Man'ko, TA, 4Frolov, GA 1Yangel Yuzhnoye State Design Office, Dnipro, Ukraine 2Chuiko Institute of Surface Chemistry, NAS of Ukraine 3Oles Honchar National University of Dnipro, Dnipro, Ukraine 4I.N. Frantsevich Institute for Material Science Problems, NAS of Ukraine, Kyiv, Ukraine |
| Space Sci. & Technol. 2022, 28 ;(1):43-50 |
| https://doi.org/10.15407/knit2022.01.043 |
| Publication Language: Ukrainian |
Abstract: A schematic diagram of composite material for a heat-resistant multifunctional coating providing radio invisibility and thermal protection of parts of missiles is proposed.
Organosilicon binder KO-08K, inorganic binder НС-1A, and heat-resistant mastic NEOMID-TITANIUM were researched to select the materials of the heat-resistant matrix. Based on the analysis of the results of thermal desorption spectrometry of organosilicon binder and mastic NEOMID-TITANIUM with heat-resistant fillers, it was found that the thermal destruction is most effectively reduced by the matrix filler with perlite and aluminum. The efficiency of the selected composites at a high rate of temperature change was evaluated by the heat stroke method. It was revealed that samples based on the organosilicon binder with fillers failed to provide the required heat resistance of the material: NEOMID-TITANIUM mastic can be used in case of filling with 2 % of aluminum and aluminum-silicate binder HC-1A in the case of filling with 5 % aluminum and 10 % mullite.
Selected materials were tested in a jet of a gas-dynamic burner. The results confirmed the need to reinforce the matrix with heat-resistant fabrics to increase its strength and erosion resistance. Heat-resistant silica fabric KT-11 and silica heat-resistant tape LKA-1200 were used as heat-resistant radio-transparent reinforcing fabric fillers.
Thermo-erosion tests of reinforced samples in the jet of a gas-dynamic burner showed that the minimum linear removal was obtained on samples with a matrix based on NEOMID-TITANIUM mastic, which was reinforced with KT-11 fabric (outer layer) and LKA-1200 tape, which allows using these materials to create the multifunctional coating.
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| Keywords: composite material, filler, matrix, multifunctional coating |
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