Alternative Polarity Recombination Centers of Point Defects

Abstract

The conditions for the formation of alternative polarity recombination centers of point defects are discussed and their structure is investigated. The centers are shown to be stable point defect-impurity complexes that reverse the polarity while trapping free point defects. Having low mobility and a large trapping radius, these complexes may be efficient point-defect recombination centers. The experimental data are presented on the effect of rare earth elements on the recovery of the electrical resistivity and swelling of low alloyed nickel to support the existence of the recombination centers.

The peculiarities of atomic ordering in scandium-doped austenitic fecrni alloys

“…The possibility of above-described mechanism realization agrees with the theoretical calculations [18]. In particular, using the method of mathematical simulation, it was shown that the impurity atoms having the large atomic radii substitutes two vacancies and forms symmetrical or asymmetrical "vacancy -impurity" complexes [ 191.…”