The oxidative dehydrogenation of propane to propene using carbon dioxide is an attractive novel synthesis route produce a key platform chemical. We investigated iron-chromia catalysts prepared by sol-gel. mixed oxides showed improved specific surface area and high concentration acid base sites were found be highly active catalysts. Although coking was observed over the catalysts, regeneration r...

Hot corrosion performance of Atmospheric Plasma Spray (APS) and Detonation spray (DSC) CoCrAlY, NiCoCrAlY, NiCr coatings on T91 steel were investigated at 650 °C for 100 cycles under Na2SO4-K2SO4-Fe2O3 mixed salt deposit in ambient air. The hot resistance DSC was found to be superior their APS counterparts. Chromia spinel oxides provided excellent while no ?-Al2O3 observed. NiCoCrAlY offered th...

Alloy material selection for sustainable, efficient, and cost-effective use in components is a key requirement both power generation aerospace sectors. Superalloys are manufactured using combination of different elements, selected carefully to balance mechanical performance environmental resistance be used variety service conditions. Therefore, fundamental understanding each element critical al...

Six high temperature alloys have been exposed in N 2 /H environments at 900 °C. In order to study the efficacy of a chromia barrier layer against nitrogen ingress, experiments were performed two having same ratio but slightly different water content, formation being spontaneous one case only. The samples evaluated by SEM/STEM/EDX, XRD, gravimetry and GD-OES. presence an external scale reduced n...