Author/Authors :
Rietmeijer، نويسنده , , Frans J.M. and Pun، نويسنده , , Aurora and Nuth III، نويسنده , , Joseph A.، نويسنده ,
Abstract :
A small number of amorphous nanograins with a silica-free, iron–alumina composition was formed during laboratory condensation of a low-silica Al–Fe–SiO–H2–O2 vapor. Very rapid cooling of the vapor created conditions that were conducive to the formation of deep metastable eutectic compounds with a specific composition. High Fe2+/Fe3+ ratios during condensation are reflected in the 1.8FeO · 0.6Fe2O3 · Al2O3 composition of this amorphous deep metastable eutectic compound.