Increasing α-phase content of alumina-chromia coatings deposited by suspension plasma spraying using hybrid and intermixed concepts

Tesar, TomasInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic; Czech Technical University in Prague, Faculty of Nuclear Science and Physical Engineering, Department of Materials, Trojanova 13, 120 00 Praha 2, Czech Republic (författare)

Funders: Technology Agency of the Czech Republic, TE02000011; Operational Programme Prague – Competitiveness, CZ.2.16/3.1.00/21566
The novel method of hybrid suspension plasma spraying of dry coarse aluminum oxide powder with chromium oxide suspension using hybrid water/argon-stabilized (WSP-H 500) plasma torch was utilized for the deposition of coatings with very high Î±-phase content reaching up to 90%. The deposition mechanism and phase composition were compared with those of coatings deposited from i) intermixed alumina-chromia suspension and ii) alumina suspension doped with chromium nitrate nonahydrate solution. All deposition routes showed alternative ways of preparation of novel multimaterial coatings. It was demonstrated that the chromia addition and the deposition route play the crucial role in the pronounced formation of the thermodynamically stable Î±-phase. Â© 2019

TEKNIK OCH TEKNOLOGIER Materialteknik Bearbetnings-, yt- och fogningsteknik hsv//swe
ENGINEERING AND TECHNOLOGY Materials Engineering Manufacturing, Surface and Joining Technology hsv//eng
Alumina; Aluminum oxide; Chromium compounds; Phase composition; Plasma jets; Plasma spraying; Powder coatings; Waterworks
Alumina suspensions; Aluminum oxide powders; Chromium oxides; Deposition mechanism; Hybrid suspension; Suspension plasma spraying; Thermodynamically stable; WSP-H
Aluminum coatings
Manufacturing and materials engineering
Produktions- och materialteknik

Musalek, RadekInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (författare)
Lukac, FrantisekInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (författare)
Medricky, JanInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (författare)
Cizek, JanInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (författare)
Rimal, VaclavCharles University, Faculty of Mathematics and Physics, V Holesovickach 2, 180 00 Praha 8, Czech Republic (författare)
Joshi, Shrikant V.,1960-Högskolan Väst,Forskningsmiljön produktionsteknik(PTW),PTW(Swepub:hv)shrjos (författare)
Chraska, TomasInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (författare)
Institute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic; Czech Technical University in Prague, Faculty of Nuclear Science and Physical Engineering, Department of Materials, Trojanova 13, 120 00 Praha 2, Czech RepublicInstitute of Plasma Physics CAS, v.v.i., Department of Materials Engineering, Za Slovankou 3, 182 00 Praha 8, Czech Republic (creator_code:org_t)

Ingår i:Surface & Coatings Technology: Elsevier BV371:S1, s. 298-3110257-89721879-3347

Av författaren/redakt...: Tesar, Tomas; Musalek, Radek; Lukac, Frantisek; Medricky, Jan; Cizek, Jan; Rimal, Vaclav; visa fler...; Joshi, Shrikant ...; Chraska, Tomas; visa färre...

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