Microstructure and High-Temperature Oxidation Behavior of ZrB2–ZrO2–MoSi2–Al Coatings for the Protection of Carbon/Carbon Composites

Novikov, V. U.; Ковалева, М. Г.; Gоncharov, I. Yu.; Yapryntsev, M. N.; Tyurin, Yu. N.; Сирота, В. В.; Vagina, Olga; Pavlenko, O. Yu.; Колисниченко, О.В.

doi:10.1007/978-3-030-68277-4_12

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Based on previous work [10][11][12] describing optimal technical conditions for the formation of coatings (Table 1), coatings from composite ZrB 2 -MoSi 2 -Y 2 O 3 -Al micro-powders were formed on the surface of carbon-containing materials using a multi-chamber detonation accelerator (MCDS, IntelMashin LLC, Moscow, Russia) [13][14][15]. Coatings were formed on the substrate surface without intermediate layers in the "carbon-containing materialscoating" system that perform barrier-compensation functions.…”

Section: Methodsmentioning

confidence: 99%

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

et al. 2021

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In this article, the coatings of ZrB2-xMoSi2-Y2O3-yAl (x = 24, 35, 45 wt %; y = 10, 15, 20 wt %) were applied to the surface of a carbon/carbon composite to protect against high-temperature oxidation using a multi-chamber detonation accelerator. The kinetic analysis of the formation processes of a glass-forming layer during the oxidation of the initial components of the system ZrB2-MoSi2-Y2O3-Al in an air atmosphere at a temperature of 1400 °C was carried out and the kinetically significant stages of the heterogeneous reaction were determined. It is shown that the speed and density of the formation of a glassy matrix can be adjusted by fine-tuning the ratio of components in the initial powder.

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Section: Methodsmentioning

confidence: 99%

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

et al. 2021

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Evolution of the phase composition of ZrB₂-35MoSi₂-15Al composite coating at annealing

Gоncharov

Ковалева

Yapryntsev

et al. 2021

J. Phys.: Conf. Ser.

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In this article, new composite coatings ZrB2-35MoSi2-15Al were deposited on the surface of a carbon-carbon composite using a multi-chamber detonation accelerator. The evolution of the phase composition of ZrB2-35MoSi2-15Al coatings was analyzed with differential scanning calorimeter (DSC) and X-ray diffractometry (in situ HT-XRD) at temperatures from room temperature (∼ 25°C) to 1400°C (normal atmosphere and pressure). The coating before annealing according to X-ray diffractometry data is tetragonal (t-ZrO2) and monocline (m-ZrO2) zirconium dioxide, monocline silicon oxide (m-SiO2), hexagonal zirconium diboride (h-ZrB2), tetragonal molybdenum disilicide (t-MoSi2), cubic aluminum (c-Al) and cubic yttrium oxide (c-Y2O3). It was found that the coating crystallizes in m-ZrO2 at 460ºC, and then mullite with rhombic crystal lattice appears at 960ºC. When the temperature reaches 1050ºC the m-ZrO2, ZrSiO4, t-ZrO2, m-SiO2 and mullite phases formed in the coating. At 1400 º C, cubic zirconium dioxide appears in the coating. Experimental results can become the basis for the application of ceramic coating ZrB2-35MoSi2-15Al, which can improve the properties of carbon-carbon composites in an oxygen-containing environment at elevated temperatures.

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Microstructure and High-Temperature Oxidation Behavior of ZrB2–ZrO2–MoSi2–Al Coatings for the Protection of Carbon/Carbon Composites

Cited by 2 publications

References 13 publications

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

Evolution of the phase composition of ZrB₂-35MoSi₂-15Al composite coating at annealing

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Microstructure and High-Temperature Oxidation Behavior of ZrB2–ZrO2–MoSi2–Al Coatings for the Protection of Carbon/Carbon Composites

Cited by 2 publications

References 13 publications

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

Kinetics Investigation of the Formation of a Gas-Resistant Glass-Forming Layer during the Oxidation of ZrB2-MoSi2-Y2O3-Al Coatings in the Air Atmosphere

Evolution of the phase composition of ZrB2-35MoSi2-15Al composite coating at annealing

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Evolution of the phase composition of ZrB₂-35MoSi₂-15Al composite coating at annealing