Graded plasma spraying of premixed metal-ceramic powders on metallic substrates

dc.creatorLima, CRC
dc.creatorTrevisan, RE
dc.date1997
dc.dateJUN
dc.date2014-12-16T11:36:58Z
dc.date2015-11-26T16:26:01Z
dc.date2014-12-16T11:36:58Z
dc.date2015-11-26T16:26:01Z
dc.date.accessioned2018-03-28T23:06:46Z
dc.date.available2018-03-28T23:06:46Z
dc.identifierJournal Of Thermal Spray Technology. Asm International, v. 6, n. 2, n. 199, n. 204, 1997.
dc.identifier1059-9630
dc.identifierWOS:A1997XD63300018
dc.identifier10.1007/s11666-997-0013-9
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/68152
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/68152
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/68152
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1268770
dc.descriptionThe mismatch between the thermal expansion coefficients of ceramics and metals and the differential stresses it causes at the interface create problems in metal to ceramic joining, Research has been conducted to solve this problem in thermal barrier coating technology. Previous studies have considered metal-ceramic multilayers or graded-coatings, which include a metallic bond coat. In this study, a graded plasma-sprayed metal-ceramic coating is developed using the deposition of premixed metal and ceramic powders without the conventional metallic bond coat, Influences of thickness variations, number, and composition of the layers are investigated. Coatings are prepared by atmospheric plasma-spraying on Inconel 718 superalloy substrates. Ni-Cr-Al and ZrO2-8% Y2O3 powders are used for plasma spraying, Adhesive and cohesive strength of the coatings are determined. The concentration profile of the elements is determined by x-ray energy-dispersive analysis. The microstructure and morphology of the coatings are investigated by optical and scanning electron microscopy (SEM). Results show that the mixed metal-ceramic coating obtained with the deposition of premixed powders is homogeneous. The morphology and microstructure of the coatings are considered satisfactory.
dc.description6
dc.description2
dc.description199
dc.description204
dc.languageen
dc.publisherAsm International
dc.publisherMaterials Park
dc.relationJournal Of Thermal Spray Technology
dc.relationJ. Therm. Spray Technol.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectcoating
dc.subjectcomposition gradient
dc.subjectgraded coating
dc.subjectmetal-ceramic
dc.subjectplasma spraying
dc.subjectthermal barrier
dc.subjectzirconia
dc.subjectThermal Barrier Coatings
dc.subjectEngine
dc.titleGraded plasma spraying of premixed metal-ceramic powders on metallic substrates
dc.typeArtículos de revistas


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