Abstract
Crystalline powders of Pd and Si or Zr in the composition ratio varying from Pd:Si (Zr) = 1:2 to 2:1 were mechanically alloyed by a laboratory ball mill in an inert atomosphere. The formation of Pd silicides (Pd2 Si and PdSi) have been recognized at the beginning of milling. On the other hand, in the Pd-Zr system amorphous alloys were obtained as well as the other many systems. Definite exothermic crystallization peak was not measured by differential thermal analysis (DTA) in the temperature range from 298 to 1073K. This result shows that the crystallization enthalpy of amorphous Pd-Zr alloy powders is very small.
