Study of the chemical transformations induced at the surface of bulk iron by protons and α beams

Autor:	Christophe Pirlot, Pascal Viel, Guy Demortier, Zineb Mekhalif, Joseph Delhalle, Gérard Lécayon, Guy Deniau
Rok vydání:	2001
Předmět:	Nuclear and High Energy Physics Materials science Hydrogen Photoemission spectroscopy Analytical chemistry chemistry.chemical_element Oxygen Ion Metal Crystallography chemistry X-ray photoelectron spectroscopy Oxidation state visual_art visual_art.visual_art_medium Instrumentation Helium
Zdroj:	Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. 185:71-76
ISSN:	0168-583X
DOI:	10.1016/s0168-583x(01)00759-5
Popis:	In this work the chemical transformations induced by protons and α beams (1017 ion cm−2) at the surface of polycrystalline iron are analysed by X-ray Photoemission Spectroscopy (XPS). Spectroscopic changes for both incident particles are globally different. We show that helium particles contribute to etch away the oxygen leaving the iron surface in a metallic state. In contrast, hydrogen ions do not remove, at least completely, the iron oxidised species present at the surface, but change its oxidation state by reducing Fe2O3 and Fe3O4 to FeO.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::78b2ba00bd98a4d66289b881f0513621 https://doi.org/10.1016/s0168-583x(01)00759-5 Zobrazit plný text záznamu Full Text from ScienceDirect