ELECTRICAL-RESISTIVITY OF LIQUID GOLD - ANTIMONY ALLOYS

Electrical resistivities of liquid gold - antimony alloy have been det ermined with the aid of a four-point-probe technique. The characterist ic features of the system are a drastic increase of the resistivity at small additions of antimony (x(Sb) less-than-or-equal-to 0.2), follow ed by a plateau-like region at intermediate compositions (0.2 < x(Sb) 0.7) and a subsequent increase towards the resistivity of pure liquid antimony (x(Sb) less-than-or-equal-to 0.7). At the lowest accessible t emperature range, i.e. in the region of the eutectic (x(Sb) almost-equ al-to 0.36, 360-degrees-C), a weak maximum seem to be indicated. The t emperature dependence shows a smooth transition from the simple linear behaviour on the gold-rich side towards the characteristic parabolic form on the antimony-rich side. The temperature coefficient itself pas ses through a minimum at about x(Sb) almost-equal-to 0.12 but remains positive throughout the range of the phase diagram. The experimental r esults are discussed in terms of the Faber - Ziman formalism.