R. Reihsner, W. Pfeiler:
"Atomic short-range order in CuMn-alloys";
Journal of Physics and Chemistry of Solids,
The establishment of atomic short-range order (SRO) has been investigated in CuMn alloys (5, 8, 13, 16, 20 at. % Mn) by measurement of the electrical restivity during isochronal and isothermal annealing. An increasing degree of SRO is accompanied by a reduction of resistivity; this effect increases with Mn concentration. For 8, 13 and 16 at. % Mn SRO kinetics turn out to deviate significantly from single exponential behavior with a maximum at 13 at. % Mn, whereas at 5 and 20 at. % Mn SRO is adjusted in a single exponential process. For data analysis three methods are used: a sum of two and three ecponentials as well as a log-normal spectrum of relaxation times. The strong interaction between second-nearest-neighbor atoms in CuMn seems to be essential for SRO kinetics but of minor importance for the value of SRO-induced re
Keywords: (atomic) short-range order, Copper manganese, diffusion is alloys, residual resistivity
Erstellt aus der Publikationsdatenbank der Technischen Universitšt Wien.