The phase diagram of the Sc-Au system has been investigated in the ran
ge 20 to 90 at.%Au, using differential thermal analysis, metallographi
c analysis, X-ray diffraction and electron microscopy. A total of six
intermediate phases has been found. Three of them have been confirmed:
ScAu4 (MoNi4-type), ScAu2 (MoSi2-type) and ScAu (CsCl-type), while Sc
Au3 (TiCu3-type), Sc2Au (anti PbCl2-type)and Sc3.5Au (Hf54Os17-type de
rived) have been found for the first time in this investigation. (C) 1
997 Elsevier Science S.A.