Lattice location of Ta-181 and Cd-111 probes in hafnium and zirconium aluminides studied by perturbed angular correlation

Abstract

The perturbed angular correlation technique was applied to study the lattice location of the In-111/Cd-111 and Hf-181/Ta-181 probe atoms in hafnium and zirconium aluminides. Compounds of different stoichiometrics and crystallographic structures were the subject of investigation. According to the expectation, in all investigated compounds Hf-181/Ta-181 probes occupy the Hf(Zr) crystallographic sites. The In-111/Cd-111 probes are placed at the sites of all constituent Metals-aluminum, hafnium and zirconium, depending on the crystallographic structure of compound, concentration Of the constituent metals and temperature of the sample.