Fabrication of metallic foams by sintering metal powders mixed with thermally degradable compounds is of interest for numerous applications. Compounds releasing gaseous nitrogen, minimizing interactions between the formed gases and metallic foam by diluting other combustion products, were applied. Cysteine and phenylalanine, were used as gas releasing agents during the sintering of elemental Fe...

Despite chalcopyrite (CuFeS2) being one of the oldest known copper ores, it exhibits various properties that are still subject debate. For example, relative concentrations ionic states Fe and Cu in CuFeS2 can vary significantly between different studies. The presence a plasmon-like resonance visible absorption spectrum nanocrystals has driven renewed interest this material over recent years. su...