Investigation of the Radiation Resistance and Optical Properties of New Composite Thermal Barrier Coatings

Improved thermal barrier coatings (TBCs) will enable future gas turbines to operate at higher gas temperatures. Considerable effort is being invested, in identifying new materials with even better performance than the current industry standard, yttrium stabilized zirconia (YSZ). TBCs are also suppos...

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Bibliographic Details
Published in:Physics of particles and nuclei letters 2023-10, Vol.20 (5), p.1259-1262
Main Authors: Badalyan, A., Harutyunyan, V., Aleksanyan, E., Grigoryan, N., Arestakyan, A., Arzumanyan, V., Manukyan, A., Baghramyan, V., Sargsyan, A., Culicov, O.
Format: Article
Language:English
Subjects:
Cerium
Coatings
Cosmic rays
Gas turbines
Investigations
Irradiation
Neutron beams
Neutrons
Optical properties
Particle and Nuclear Physics
Physics
Physics and Astronomy
Physics of Solid State and Condensed Matter
Proton beams
Radiation
Radiation tolerance
Silicates
Thermal barrier coatings
Yttria-stabilized zirconia
Yttrium
Zinc silicates
Zirconium dioxide
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Summary:Improved thermal barrier coatings (TBCs) will enable future gas turbines to operate at higher gas temperatures. Considerable effort is being invested, in identifying new materials with even better performance than the current industry standard, yttrium stabilized zirconia (YSZ). TBCs are also supposed to be applied in spacecrafts as protective layer against heat. The operation of spacecrafts in cosmic conditions in turn suggests continuous irradiation with cosmic rays, particularly with MeV energy protons, electrons, and neutrons. Therefore, it is very important to investigate the behavior of such barrier coatings under irradiation conditions. In this work, we investigate the radiation resistance of TBCs based on silicate compounds obtained by a hydrothermal microwave method by using proton and neutron beam irradiation. For this purpose, zinc silicates and cerium-doped zinc silicates were irradiated with 18 MeV protons with doses 10 13 –10 15 p/cm 2 and neutrons with doses 10 13 , 10 15 n/cm 2 . The diffuse reflectance measurements and X-ray diffraction analysis (XRD) of materials before and after irradiation indicated that the samples have high radiation resistance, and the samples maintain the crystalline structure.
ISSN:1547-4771
1531-8567
DOI:10.1134/S1547477123050102