Performance of CVD Al<SUB>2</SUB>O<SUB>3</SUB> Intermediate Layer between Zirconia Top Coat and NiCrAlY Bond Coat
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چکیده
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Patient coat, doctor coat.
In those hands I see chipped plates, plastic sofa case, dripping taps, the smell of too little tenement light, of urine rained on hapless clothes, a smell her grandson will call stale and will define everything in life he will forever run from. Her sallow hands, atrophic from not holding and not being held, like garaged brush stiffened with last year’s paint; hands that rest, as she finishes, o...
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Multilayer thermal barrier coatings (TBCs) on superalloy substrates are comprised of an intermetallic bond coat, a thermally grown oxide (TGO) layer, and a porous zirconia top coat that provides thermal protection. The TGO attains a thickness of 1±10 lm prior to failure, while the bond coat and zirconia layer are each about 50±100 lm thick. The preferred method for manufacturing TBCs comprises ...
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Poor adhesion between two successive bituminous layers causes adverse effects on the structural strength of the pavement and develops a numbers of premature failure. To improve the adhesion, it is a general practice to apply a tack coat over an existing or newly constructed bituminous surface before laying another bituminous layer. The main objective of this study is to explore the influence of...
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In the present study NiCrAlY bond coating layer was produced by electroplating against common atmospheric plasma spraying (APS). Both types of the bond coats were applied on IN738LC base metal then, the YSZ (ZrO2-8% Y2O3) thermal barrier top layer was coated by atmospheric plasma spray technique. Hot corrosion is one of the main destructive factors in thermal barrier coatings (TBCs) which come ...
متن کاملAir Plasma Sprayed Bond Coat Oxidation Behavior and its Resistance to Isothermal and Thermal Shock Loading
An experimental investigation was conducted to find the effect of spraying method of coating of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal loading. Isothermal and thermal shock tests were performed in order to study oxidation behaviour of air plasma sprayed Bond Coat (BC) and assess its effect on TBCs lifetime under the stated loadings. Specim...
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ژورنال
عنوان ژورنال: Materials Transactions, JIM
سال: 1993
ISSN: 0916-1821,2432-471X
DOI: 10.2320/matertrans1989.34.614