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Type of publication: research article
Type of publication (PDB): Straipsnis Clarivate Analytics Web of Science / Article in Clarivate Analytics Web of Science (S1)
Field of Science: Fizika / Physics (N002)
Author(s): Tučkutė, Simona;Pranevičius, Liudas;Pranevičius, Liudvikas;Urbonavičius, Marius
Title: On the oxygen transport mechanism in titanium thin films under irradiation by molecular water ions
Is part of: Materials science = Medžiagotyra. Kaunas : KTU, Vol. 19, no. 1, 2013
Extent: p. 34-37
Date: 2013
Keywords: Vandenilis;Plazma;Vandens garai;Joninė implantacija;Hydrogen;Plasma;Water vapor;Ion implantation
Abstract: The behavior of oxygen atoms in (0.5–1.0) µm thick Ti films is investigated under high-flux, low-energy molecular water ion irradiation. The anomalously deep penetration of oxygen without formation of new compounds observable by XRD has been registered after 10 min of irradiation at room temperature using Auger Electron spectroscopy analysis. The mechanism driving oxygen atoms from the surface into the bulk is discussed. It is based on the results of experimental studies of surface topography and assumption that the surface energy increases under ion irradiation, and relaxation processes minimizing the surface energy initiate the atomic redistribution on the surface and in the bulk. Two processes minimizing the surface free energy are considered: (i) the mixing of atoms on the surface, and (ii) the annihilation of surface vacancies by the atoms transported from the bulk to the surface
Affiliation(s): Fizikos katedra
Lietuvos energetikos institutas
Vytauto Didžiojo universitetas
Appears in Collections:Universiteto mokslo publikacijos / University Research Publications

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