Through thermodynamic smelting experiments, nonisothermal and isothermal kinetics the effects of CO2–containing gas injection on chromia–bearing vanadiferous titanomagnetite ore were investigated. The experiments at 900 °C, 1000 1100 1200 1300 CO2 concentration 0, 10 vol.%, 20 30 vol.% studied. samples after analyzed through calculations characterized by XRD, XRF, XPS, SEM. results show that si...

The thermally induced reaction of chlorinated ethanes on the nearlystoichiometric α-Cr2O3 (1012) surface results in the formation of gas phase hydrocarbons including ethylene, ethane, acetylene, 2-butene, 2-butyne and dihydrogen, and deposition of surface chlorine adatoms. No surface carbon or combustion products are observed in any reactions indicating no thermally induced C-C bond cleavage oc...

Abstract Rationalizing the reactive element effect operative in alumina- and chromia-forming alloys upon oxidation under oxidizing hot gas atmospheres, referring to investigations on zirconium oxide-coated test samples for turbine alloys. This retrospective study uses results of cyclic furnace lifetime tests conducted at 1100 °C ZrO 2 -coated Ni-base with Y? or Y+ Hf-doped bond coats correlates...

In this study very short oxidation tests, called flash were carried out at high temperature on samples of superalloy Inconel 718 containing some boron. Following these a specific pattern was evidenced: spots observed the oxide film, being discontinuously distributed along grain boundaries. Whether outside or inside spots, film exhibited same three layers which likely rutile (Cr,Nb,Ti)O2, chromi...