Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС

An experimental determination of the temperature dependences of the specific heat capacity and the thermal conductivity coefficient of the multifunctional coating MFP-92 at temperatures up to 1000 °C has been carried out. At temperatures up to 450 °C, an IT-c-400 device was used to determine the spe...

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Autores principales:	Геннадий Александрович Фролов, Юрий Игоревич Евдокименко, Вячеслав Михайлович Кисель, Ирина Александровна Гусарова
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Aerospace University «Kharkiv Aviation Institute» 2021
Materias:	многофункциональное покрытие теплофизические характеристики высокотемпературные испытания жаростойкость муфельная печь Motor vehicles. Aeronautics. Astronautics TL1-4050
Acceso en línea:	https://doaj.org/article/0518fdc9900d4bae92fb02912fa101c0
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spelling	oai:doaj.org-article:0518fdc9900d4bae92fb02912fa101c02021-11-09T07:53:09ZThermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС1727-73372663-221710.32620/aktt.2021.4sup1.02https://doaj.org/article/0518fdc9900d4bae92fb02912fa101c02021-08-01T00:00:00Zhttp://nti.khai.edu/ojs/index.php/aktt/article/view/1447https://doaj.org/toc/1727-7337https://doaj.org/toc/2663-2217An experimental determination of the temperature dependences of the specific heat capacity and the thermal conductivity coefficient of the multifunctional coating MFP-92 at temperatures up to 1000 °C has been carried out. At temperatures up to 450 °C, an IT-c-400 device was used to determine the specific heat capacity. IT-l-400 device was used for the determination of thermal conductivity. At higher temperatures, the determination of the thermophysical characteristics (TPC) was carried out by solving the inverse problem of thermal conductivity (IPT) in a flat plate under conditions of one-sided heating in a muffle furnace. Composite material MFP-92 is a multilayer structure with upper layers based on silica fabric and chromophosphate binder and lower layers based on mullite-silica fabric and aluminosilicate binder. The TPC of the layers also differ from each other, and, accordingly, the properties of this material as a whole can be determined only in the form of their effective values, averaged in one way or another over the thickness of the coating. In addition, during heating, the material undergoes significant physicochemical transformations associated with the thermal destruction of its components, manifested in the form of abundant gas release, and a decrease in the density of the material, which significantly changes its TPC and determines its dependence on the heating rate. Therefore, studies of the thermophysical characteristics of the MFP-92 material were carried out with several (2-5) consecutive heating cycles. It was found that in four heating cycles of the MFP-92 material up to 450 °C for 75 minutes when measuring the specific heat on the IT-c-400 device, its temperature dependence significantly changes qualitatively and quantitatively. With furnace heating to 1000 °C, the temperature dependences of the TPC of the material, determined in the first and second heating cycles, have a different form, but change insignificantly in subsequent heating cycles. This makes it possible to ascribe to the MFP-92 material a set of two sets of TPC related to its initial (phase A) and annealed after heating to 1000 °C (phase B) states. Using the obtained TPС of phase A (including the magnitude of the thermal effect of irreversible endothermic phase transition at 100 °C) and phase B, good agreement was obtained between the calculated and experimental temperature fields in the samples under furnace heating conditions.Геннадий Александрович ФроловЮрий Игоревич ЕвдокименкоВячеслав Михайлович КисельИрина Александровна ГусароваNational Aerospace University «Kharkiv Aviation Institute»articleмногофункциональное покрытиетеплофизические характеристикивысокотемпературные испытанияжаростойкостьмуфельная печьMotor vehicles. Aeronautics. AstronauticsTL1-4050ENRUUKАвіаційно-космічна техніка та технологія, Vol 0, Iss 4sup1, Pp 11-18 (2021)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	многофункциональное покрытие теплофизические характеристики высокотемпературные испытания жаростойкость муфельная печь Motor vehicles. Aeronautics. Astronautics TL1-4050
spellingShingle	многофункциональное покрытие теплофизические характеристики высокотемпературные испытания жаростойкость муфельная печь Motor vehicles. Aeronautics. Astronautics TL1-4050 Геннадий Александрович Фролов Юрий Игоревич Евдокименко Вячеслав Михайлович Кисель Ирина Александровна Гусарова Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
description	An experimental determination of the temperature dependences of the specific heat capacity and the thermal conductivity coefficient of the multifunctional coating MFP-92 at temperatures up to 1000 °C has been carried out. At temperatures up to 450 °C, an IT-c-400 device was used to determine the specific heat capacity. IT-l-400 device was used for the determination of thermal conductivity. At higher temperatures, the determination of the thermophysical characteristics (TPC) was carried out by solving the inverse problem of thermal conductivity (IPT) in a flat plate under conditions of one-sided heating in a muffle furnace. Composite material MFP-92 is a multilayer structure with upper layers based on silica fabric and chromophosphate binder and lower layers based on mullite-silica fabric and aluminosilicate binder. The TPC of the layers also differ from each other, and, accordingly, the properties of this material as a whole can be determined only in the form of their effective values, averaged in one way or another over the thickness of the coating. In addition, during heating, the material undergoes significant physicochemical transformations associated with the thermal destruction of its components, manifested in the form of abundant gas release, and a decrease in the density of the material, which significantly changes its TPC and determines its dependence on the heating rate. Therefore, studies of the thermophysical characteristics of the MFP-92 material were carried out with several (2-5) consecutive heating cycles. It was found that in four heating cycles of the MFP-92 material up to 450 °C for 75 minutes when measuring the specific heat on the IT-c-400 device, its temperature dependence significantly changes qualitatively and quantitatively. With furnace heating to 1000 °C, the temperature dependences of the TPC of the material, determined in the first and second heating cycles, have a different form, but change insignificantly in subsequent heating cycles. This makes it possible to ascribe to the MFP-92 material a set of two sets of TPC related to its initial (phase A) and annealed after heating to 1000 °C (phase B) states. Using the obtained TPС of phase A (including the magnitude of the thermal effect of irreversible endothermic phase transition at 100 °C) and phase B, good agreement was obtained between the calculated and experimental temperature fields in the samples under furnace heating conditions.
format	article
author	Геннадий Александрович Фролов Юрий Игоревич Евдокименко Вячеслав Михайлович Кисель Ирина Александровна Гусарова
author_facet	Геннадий Александрович Фролов Юрий Игоревич Евдокименко Вячеслав Михайлович Кисель Ирина Александровна Гусарова
author_sort	Геннадий Александрович Фролов
title	Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
title_short	Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
title_full	Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
title_fullStr	Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
title_full_unstemmed	Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС
title_sort	thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oс
publisher	National Aerospace University «Kharkiv Aviation Institute»
publishDate	2021
url	https://doaj.org/article/0518fdc9900d4bae92fb02912fa101c0
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Thermal characteristics of the thermal protection material of the rocket motor case at temperatures up to 1000 oС

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