6533b82efe1ef96bd12933ce
RESEARCH PRODUCT
Quantitative phase analysis and thickness measurement of surface-oxide layers in metal and alloy powders by the chemical-granular method
Pierre BracconiLars Nyborgsubject
ChemistryAlloyX-rayAnalytical chemistryGeneral Physics and AstronomySurfaces and InterfacesGeneral Chemistryengineering.materialCondensed Matter PhysicsMicrostructureSurfaces Coatings and FilmsIonMetalSecondary ion mass spectrometryX-ray photoelectron spectroscopyvisual_artvisual_art.visual_art_mediumengineeringMetal powderComposite materialdescription
The principles of the chemical-granular analysis of metal and alloy powders are reviewed and the results are compared with those provided by the spectroscopic analytical techniques XPS, AES and SIMS, including ion etching in their depth-profiling mode, when they are applied to the same materials. Several examples are analysed and it is shown that the chemical-granular method alone can provide the very same information as depth profiling. However, it is averaged over a macroscopic powder sample in contrast to one or a few single particles. Nevertheless, it is the combination of the chemical-granular and depth-profiling analyses that really provides an unparalleled description in quantitative terms of the phase composition and microstructure of either multiphase and/or irregular surface layers resulting from oxidation, precipitation or contamination.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1998-05-01 |