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π SIMILAR VOLUMES
The devitrification of amorphous phases can be controlled to yield a high nucleation density and a nanoscale microstructure based upon either nanocrystals dispersed in an amorphous matrix or a completely nanocrystalline solid. For both rapidly solidified marginal glass forming alloys and slowly cool
The viscosity of a near eutectic Au-Ge-Si alloy deep within the eutectic is reported. The observed viscosity is lower than that extrapolated for pure gold at this temperature so that the addition of Si and Ge to Au lowers the viscosity at high temperatures while increasing the glass forming tendency
Ternary Ni 60 Nb 40-x Sn x (3 β€ x < 9 at.%) and quaternary Ni 60 (Nb 100-x Ta x ) 34 Sn 6 (x = 20, 40, 60 and 80 at.%) Ni-base alloys were found to form bulk amorphous structures using conventional metallic-mold casting. These bulk amorphous alloys have very high glass transition temperatures (881 K