Improved oxidation resistance of Cr-Si coated Zircaloy with an in-situ formed Zr2Si diffusion barrier

The study of Oxidation Behavior of AISI 439 Steel at the Presence of Manganese Oxides for the Application in Solid Oxide Fuel Cells

Long–term stability and oxidation resistance of AISI 439 ferritic stainless steel used as interconnects in solid oxide fuel cells can be improved by use of a protective coating. In this study the pack cementation method was employed to coat AISI 439 ferritic stainless steel with manganese. Isothermal oxidation was conducted at 800 ºC for 200 hours in static air to investigate the role of coatin...

Improved Understanding of In Situ Chemical Oxidation: Contaminant Oxidation Kinetics

Improved oxidation resistance of organic/inorganic composite atomic layer deposition coated cellulose nanocrystal aerogels

Cellulose nanocrystal (CNC) aerogels are coated with thin conformal layers of Al2O3 using atomic layer deposition to form hybrid organic/inorganic nanocomposites. Electron probe microanalysis and scanning electron microscopy analysis indicated the Al2O3 penetrated more than 1500 lm into the aerogel for extended precursor pulse and exposure/purge times. The measured profile of coated fiber radiu...

Chemical stability of Ta diffusion barrier between Cu and Si

The reactions in the SirTarCu metallization system produced by the sputtering process were investigated by means of sheet Ž . Ž . resistance measurements, X-ray diffraction XRD , Rutherford backscattering spectroscopy RBS , scanning electron microscopy Ž . SEM and optical microscopy. In particular, the reaction sequence was emphasized. The reaction mechanisms and their relation to the microstru...

Influence of Oxygen Contents on the Microstructure, High Temperature Oxidation and Corrosion Resistance Properties of Cr–Si–O–N Coatings

Cr–Si–O–N coatings with different oxygen contents were deposited by multi-arc ion plating, where various O2/(N2 + O2) reactive gas rates were adopted. The XRD and XPS results showed that the CrN crystals disappeared with the increasing of the oxygen flux ratio to 10 at.%. The microhardness of all the Cr–Si–O–N coatings was approximately 2000 Hv0.05, which were dramatically plummeted compared to...