Should Gold Marker or TEM-ASTAR Characterization Be Used to Determine Oxide Growth Direction?
Autor: | T. Roy, Lionel Aranda, Michel Vilasi, Y. Parsa, Renaud Podor, Laurence Latu-Romain, Yves Wouters, Stéphane Mathieu, T. Perez |
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Přispěvatelé: | Science et Ingénierie des Matériaux et Procédés (SIMaP), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), Université Grenoble Alpes (UGA), UGITECH, Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Etude de la Matière en Mode Environnemental (L2ME), Institut de Chimie Séparative de Marcoule (ICSM - UMR 5257), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA), ANR-15-CE08-0021,PSEUDO,Etude des propriétés semi-conductrices d'oxydes élaborés en couches minces(2015), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Ecole Nationale Supérieure de Chimie de Montpellier (ENSCM)-Institut de Chimie du CNRS (INC)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS) |
Jazyk: | angličtina |
Rok vydání: | 2021 |
Předmět: |
Chromia-former alloys
Materials science TEM-ASTAR Alloy Oxide chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Inorganic Chemistry Metal chemistry.chemical_compound Chromium Photoelectrochemistry 0103 physical sciences Materials Chemistry [CHIM]Chemical Sciences Nichrome Composite material High-temperature oxidation 010302 applied physics Inert fungi Metals and Alloys technology industry and agriculture Marker 021001 nanoscience & nanotechnology Chromia Characterization (materials science) chemistry visual_art visual_art.visual_art_medium engineering 0210 nano-technology |
Zdroj: | Oxidation of Metals Oxidation of Metals, Springer Verlag, 2021, 96, pp.201-211. ⟨10.1007/s11085-021-10042-x⟩ Oxidation of Metals, 2021, 96, pp.201-211. ⟨10.1007/s11085-021-10042-x⟩ |
ISSN: | 0030-770X 1573-4889 |
DOI: | 10.1007/s11085-021-10042-x⟩ |
Popis: | International audience; Oxidation of chromia-forming alloys (pure chromium, nickel–chromium alloy and ferritic stainless steel alloy) at temperature ranging from 800 to 1050 °C was conducted on samples with or without gold markers applied prior to testing. Gold is often used as a marker in order to identify oxide growth direction. Its localization inside the oxide scale can demonstrate an inward or an outward growth. It is found that gold particles can be found either at the internal metal/oxide interface or inside the scale or again at the external oxide/gas interface on the same sample (on NiCr and stainless steel alloys). For pure chromium oxidation, gold is found inside the chromia scale, at the equiaxed-columnar interface, as expected from ASTAR-TEM characterization. However, photoelectrochemical characterization has shown that gold can modify the semiconducting chromia properties. Finally, gold is not inert in these several conditions and should not be considered in these present cases, but also more generally in most cases, as an appropriate marker. On the contrary, ASTAR maps may permit to access the oxide growth direction without interfering the studied system. |
Databáze: | OpenAIRE |
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