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Showing 1 to 7 of 7 for “"Electron-beam physical vapor deposition"”.
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Characterizing the Effects of Mechanical Alloying on Solid State Amorphization of Nanoscaled Multilayered Ni-Ti
… system, elemental Ni and Ti were deposited by electron beam physical vapor deposition on titanium plates with comparable spacing as above. Both milled and deposited multilayers were annealed between 225 and 350°C for up to 50 hours. X-ray diffraction characterization and in situ annealing was …
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Deposition of yttria-stabilized zirconia thermal barrier coatings by laser-assisted plasma coating at atmospheric pressure
… of the atmospheric plasma, such as electron temperature Te, electron density ne, and plasma gas temperature Tg, are experimentally investigated using the optical emission spectroscopy (OES) technique. The discharge mechanisms of the atmospheric pressure plasma are also theoretically …
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Effects Of Bond Coat Surface Preparation On Thermal Cycling Lifetime And Failure Characteristics Of Thermal Barrier Coatings
… atm up to 4 hours, carried out prior to the electron beam physical vapor deposition (EB-PVD) of ZrO2-7wt% Y2O3 (7YSZ) ceramic topcoat. The resulting characteristics of the bond coat and the thermally grown oxide (TGO) scale were initially documented by surface roughness, phase constituents of …
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Thermal and Optical Properties of Oxide Coatings for High-Temperature Applications
… with cations that absorb thermal radiation by electronic transitions. Recent work on an ultrafast high temperature sintering (UHS) technique has also been demonstrated to accelerate the development of coatings for environmental-thermal barrier coating (ETBC) applications. Rare-earth cations …
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Nondestructive Evaluation Of Thermal Barrier Coatings With Thermal Wave Imaging And Photostimulated Luminescence Spectroscopy
… cycling for microstructural analysis by scanning electron microscopy (SEM). Higher thermal response amplitude associated with disrupted heat transfer was observed where localized spallation at or near the YSZ/TGO interface occurred. The health of the TBC was monitored by a rise in thermal response …
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A small-angle scattering analysis of the influence of manufacture and thermal induced morphological changes on the thermal conductivity of EB-PVD PYSZ thermal barrier coatings
Die Abscheidung von elektronenstrahlaufgedampften Wärmedämmschichten (EB-PVD WDS) auf metallischen Turbinenschaufeln von Triebwerken führt zu einer Verbesserung der Schaufelinnenkühlung, d.h. die Eintrittstemperatur der Gase in der Turbine kann erhöht werden und somit die Effizienz des Triebwerks …
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In-Situ Investigations of Calcium-Magnesium-Aluminosilicates (CMAS) Infiltration Effects on Thermal Barrier Coatings Under Extreme Environments Replicating Jet Engines
… and infiltrate into the ceramic coatings. In electron-beam physical vapor deposited (EB-PVD) TBCs, the CMAS within the intercolumnar gaps stiffens the coatings and causes thermomechanical induced high stress concentrations, risking crack formation. While molten, the CMAS thermochemically …