Platinum Gold 95/5 (PtAu5)
The good stability of platinum, even in the 1100-1200°C temperature range, is further improved by the addition of 5% gold. The alloy has higher strength and, in particular when melting silicates, a low wettability so that the melt can be removed easily from the crucibles and casting dishes.
Material properties.- The gold content reduces the wetting by glass melts so that the glass can be easily removed after solidification without leaving any residue. The mechanical strength is also increased and the tendency to recrystallisation reduced.
Possible applications:- These properties predestine PtAu 95/5 as the material for apparatus for the preparation if samples for X-ray fluorescence analysis (XRF)
