Effect of Impurity Gases on the Combustion of a Mechanically Activated Ni + Al Mixture
Н. А. Кочетов, B. S. Seplyarsky
Abstract
Abstract In this study, we compare the combustion of nonactivated and mechanically activated Ni + Al mixtures. The combustion of compacted specimens and specimens of bulk density is studied. The combustion rate, relative elongation of samples, initial density and density of combustion products, and the microstructure and phase composition of the initial mixtures and reaction products are investigated. It is found that mechanical activation (MA) leads to a significant increase in the burning rate and elongation of the pressed samples, while the bulk density samples retain their length during combustion.
Topics & Concepts
ImpurityCombustionMaterials scienceChemical engineeringChemistryPhysical chemistryOrganic chemistryEngineeringIntermetallics and Advanced Alloy PropertiesEnergetic Materials and CombustionThermal and Kinetic Analysis