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contributor authorHarder, Bryan J.
contributor authorPresby, Michael J.
contributor authorSalem, Jon A.
contributor authorArnold, Steven M.
contributor authorMital, Subodh K.
date accessioned2022-02-05T22:19:18Z
date available2022-02-05T22:19:18Z
date copyright2/8/2021 12:00:00 AM
date issued2021
identifier issn0742-4795
identifier othergtp_143_03_031004.pdf
identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4277338
description abstractPlasma spray-physical vapor deposition (PS-PVD) environmental barrier coatings (EBCs) of Yb2Si2O7 were deposited on SiC and exposed in a steam environment (90% H2O/O2) at 1426 °C to form a thermally grown oxide (TGO) layer between the substrate and EBC. In advanced ceramic material systems such as coated ceramic matrix composites (CMCs), the TGO layer is the weak interface and directly influences component lifetimes. The effects of surface roughness and TGO thickness on the adhesion strength were evaluated by mechanical testing of the coatings after exposure. Morphology and oxide layer thickness were analyzed with electron microscopy while the composition and crystal structure were tracked with X-ray diffraction. The strength of the system is evaluated with respect to oxidation rate to give a qualitative understanding of coating durability.
publisherThe American Society of Mechanical Engineers (ASME)
titleEnvironmental Barrier Coating Oxidation and Adhesion Strength
typeJournal Paper
journal volume143
journal issue3
journal titleJournal of Engineering for Gas Turbines and Power
identifier doi10.1115/1.4049414
journal fristpage031004-1
journal lastpage031004-6
page6
treeJournal of Engineering for Gas Turbines and Power:;2021:;volume( 143 ):;issue: 003
contenttypeFulltext


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