naa a22 4500 510814441 CHVBK 20180411083458.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1134/S0031918X13010092 doi (NATIONALLICENCE)springer-10.1134/S0031918X13010092 Orudzhov A. Baku State University, ul. Z. Khalilova 23, AZE1148, Baku, Azerbaijan aut Diffusion of potassium atoms into rhenium covered with two-dimensional graphite film [Elektronische Daten] [A. Orudzhov] The effective diffusion of K atoms into Re (1010) stimulated by a graphite monolayer on its surface is discovered. The activation energies of the diffusion of potassium into rhenium and from it, as well as the effectiveness of the diffusion of potassium atoms, are determined. The following values are obtained: E f1 = 5.4 ± 0.05 eV, E 1f = 5.75 ± 0.05 eV, and δdif(K) ≈ 0.25. The difference in the energies of the diffusion of potassium into rhenium is lower than the energy of the diffusion of potassium into iridium. It is shown that the diffusion length in the process of the diffusion of potassium adatoms into rhenium is greater than in the case of diffusion into iridium. The noticeable diffusion of potassium atoms are observed when the voltage U ≥ +200 V is applied to the specimen and intensifies approximately following the linear law as U increases to 4000 V. The formation of a graphite monolayer on the rhenium surface due to the enormous prolongation of the lifetime of K adatoms under the graphite island compared to the lifetime of adatoms on the exposed rhenium surface increases greatly the effectiveness of potassium diffusion, which grows by ∼108 times, then approaches unity. This phenomenon can be used as a method for the active alloying of subsurface layers of solids by atoms. Pleiades Publishing, Ltd., 2013 diffusion nationallicence intercalation nationallicence graphite monolayer nationallicence thermal desorption nationallicence The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/1(2013-01-01), 63-67 0031-918X 114:1<63 2013 114 11508 https://doi.org/10.1134/S0031918X13010092 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1134/S0031918X13010092 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Orudzhov A. Baku State University, ul. Z. Khalilova 23, AZE1148, Baku, Azerbaijan aut NATIONALLICENCE 773 0- The Physics of Metals and Metallography SP MAIK Nauka/Interperiodica 114/1(2013-01-01), 63-67 0031-918X 114:1<63 2013 114 11508 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer