Rev.Adv.Mater.Sci. (RAMS)
No 2, Vol. 18, 2008, pages 190-192

DEVELOPING Au-BASED AMORPHOUS ALLOYS

Gianluca Fiore and Livio Battezzati

Abstract

The present work is aimed at exploring new systems, close to 18 karat gold, for the synthesis of amorphous alloys. Results are reported on glass-forming tendency, microstructure and stability of various compositions in the Au-Cu-Si, Au-Cu-Ti-Si and Au-Cu-Y systems. Glass formation has been achieved in Au-Cu-Si at a composition corresponding to the minimum of the mixing enthalpy in the liquid state, whereas formation of unknown intermetallics limit the quenchability of Au-Cu-Y.

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