Szczegóły publikacji
Opis bibliograficzny
High-temperature oxidation of the Crofer 22 H ferritic steel with $Mn_{1.45}Co_{1.45}Fe_{0.1}O_{4}$ and $Mn_{1.5}Co_{1.5}O_{4}$ spinel coatings under thermal cycling conditions and its properties / M. Bednarz, S. Molin, M. BOBRUK, M. STYGAR, E. DŁUGOŃ, M. SITARZ, T. BRYLEWSKI // Materials Chemistry and Physics ; ISSN 0254-0584. — Tytuł poprz.: Materials Chemistry. — 2019 — vol. 225, s. 227–238. — Bibliogr. s. 237–238, Abstr. — Publikacja dostępna online od: 2018-12-28
Autorzy (7)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 119344 |
|---|---|
| Data dodania do BaDAP | 2019-01-29 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.matchemphys.2018.12.090 |
| Rok publikacji | 2019 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Materials Chemistry and Physics |
Abstract
The aim of the presented study was to deposit protective-conducting Mn1.45Co1.45Fe0.1O4 and Mn1.5Co1.5O4 spinel coatings on the Crofer 22 H ferritic steel by means of electrophoresis and to evaluate their physicochemical properties after high-temperature oxidation under thermal cycling conditions. When the Crofer 22 H steel – whether uncoated or coated with the two spinels – was oxidized in 48-h cycles involving a temperature of either 750 or 800 °C, its oxidation kinetics approximately obeyed the parabolic rate law. The oxidation rate observed for uncoated steel was higher than that for the studied coating/steel systems. The Fe-doped spinel coating material improved the oxidation resistance of steel to a higher degree than the undoped spinel coating. The obtained bulk spinels exhibited a regular phase composition and high electrical conductivity, while the Mn1.45Co1.45Fe0.1O4 and Mn1.5Co1.5O4 coatings were dual-phase, compact, and exhibited good adhesion to the metallic substrate. The area-specific resistance values measured for the steel/coating systems indicate that the coatings significantly improve the electrical properties of the studied ferritic steel, especially at 800 °C. The conducted research confirmed the suitability of the Mn1.45Co1.45Fe0.1O4 and Mn1.5Co1.5O4 spinels as coatings on the Crofer 22 H ferritic steel to be applied in the production of interconnects used in intermediate-temperature SOFCs.
