Reaction pathways in the oxidation and pesting of molybdenum disilicide MoSi2 studied with scanning tunneling microscopy and spectroscopy

Microstructure and oxidation resistance of porous NbAl3 intermetallic prepared by thermal explosion reaction

“…Grain-boundary and non-selective oxidation did not form the protective alumina scale in the sample and produced cracks due to the mismatch in volume expansion between the formed oxide and the base alloy, which caused complete disintegration of monolithic samples into powder. This phenomenon not only has been detected in Nb and Nb alloys, but also revealed in MoSi 2 and high-entropy alloys [19–21]. In order to improve the oxidation resistance of such materials with ‘pest’, alloying and coating are effective means for the formation of an adhesive, dense, protective scale on the surface of the material [22,23].…”