High-Temperature ZrB2-Based Coatings on Metallic Alloys Produced by High-Velocity Air-Fuel Thermal Spraying

Podchernyaeva, I. A.; Grigoriev, O. N.; Panasyuk, A. D.; Evdokimenko, Yu. I.; Kisel, V. M.; Yurechko, D. V.; Panashenko, V. M.

doi:10.1007/s11106-017-9856-x

Cited by 4 publications

(3 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermal spraying is a highly efficient method to deposit coatings [32][33][34][35][36]. The use of high-speed gas-thermal methods, which impart high kinetic energy to powder particles while reducing their temperature, is expedient for obtaining coatings on the carbon-carbon materials' surface.…”

Section: Introductionmentioning

confidence: 99%

“…The technology of detonation spraying of industrial coatings is characterized by economy and environmental friendliness, since the plasma components used are not hostile substances to the environment. In addition, there is no need to apply preliminary surface preparation and use energy-intensive vacuum, heating, and cooling equipment (as in the case of traditional laser, electron beam, and vacuum plasma technologies) [32][33][34][35][36]. However, the sprayed coatings exhibit a porous structure, which cannot create an effective barrier against the corrosive environment for substrates [32,37].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, there is no need to apply preliminary surface preparation and use energy-intensive vacuum, heating, and cooling equipment (as in the case of traditional laser, electron beam, and vacuum plasma technologies) [32][33][34][35][36]. However, the sprayed coatings exhibit a porous structure, which cannot create an effective barrier against the corrosive environment for substrates [32,37].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Oxidation Behavior and Microstructural Evolution of ZrB2–35MoSi2–10Al Composite Coating

et al. 2021

View full text Add to dashboard Cite

The problem of creating and implementing high-temperature coatings for the protection of carbon–carbon (C/C) composites remains relevant due to the extremely low or insufficient heat resistance of C/C composites in an oxygen-containing environment. In the present work, detonation spraying was used for preparing new ZrB2–35MoSi2–10Al coatings on the surface of C/C composites without a sublayer. As a stabilizer of high-temperature modification of zirconia, and to increase the wettability of the surface of C/C composites, 5 wt.% Y2O3 and 10 wt.% Al were added to the initial powder mixture, respectively. The structure of the as-sprayed coating presents many lamellae piled up one upon another, and is composed of hexagonal ZrB2 (h- ZrB2), tetragonal MoSi2 (t-MoSi2), monoclinic ZrO2 (m-ZrO2), tetragonal ZrO2 (t-ZrO2), monoclinic SiO2 (m-SiO2), and cubic Al phases. The oxidation behavior and microstructural evolution of the ZrB2–35MoSi2–10Al composite coating were characterized from RT to 1400 °C in open air. During oxidation at 1400 °C, a continuous layer of silicate glass was formed on the coating surface. This layer contained cubic ZrO2 (c-ZrO2), m-ZrO2, and small amounts of mullite and zircon. The results indicated that a new ZrB2–35MoSi2–10Al composite coating could be used on the surface of C/C composites as a protective layer from oxidation at elevated temperatures.

show abstract