M. Niewiara, J. Podwórny, E. Łągiewka
Institute of Physics and Chemistry of Metals, Silesian University, Bankowa 12, 40-007 Katowice, Poland
The electrodeposited Cu-Cd alloys have higher solubility of cadmium in the copper matrix and the
non-equilibrium phase composition. The X-ray pattern analysis of the alloys with cadmium content of
above 10 at.% shows that these materials are amorphous.
The measurement of diffusion X-ray scattering was applied for searching of structure changes of Cu-Cd
amorphous alloys. The Radial Distribution Function and the Short-range Order Parameters were calculated
for each sample. These procedures should describe changes of Cu-Cd atom order versus cadmium content
and define of an approximate structure model for Cu-Cd amorphous alloys.
The Rietveld Refinement is proposed as a new approach to description of X-ray scattering intensity for
Cu-Cd alloys. The main assumption is a fact that the crystalline size is near to the range of alloy
elementary unit.