. . "[8CD7BD30F81C]" . "Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique" . "485;490" . . "Pasold, G." . . "\u010Cerven\u00E1, Jarmila" . . "237-240" . "The objective of this work was the study of Li-6 diffusion in the Ta and W refractory metals. The samples were prepared by ion implantation of 380 keV Li-6(+) ions into W and Ta thin foils (up to the fluence of 10(16) ions/cm(2)) and annealed up to the temperature 1940 degrees C. The depth profiles of Li-6 were determined using the Thermal Neutron Depth Profiling (TNDP) technique. The results showed that diffusion of Li-6 in both W and Ta foils is very complex and cannot be described by simple Fick's laws. Trapping centers (in the subsurface layers of both W and Ta metals) were supposed in a trial to explain the Li-6 diffusion behaviour. However, the Li-6 depth profiles were only partly explained. Other aspects are necessary to take into account for more proper quantification; such as spatially dependent diffusion coefficients, etc." . "Hnatowicz, Vladim\u00EDr" . "1012-0386" . "Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique"@en . "1/2" . "6"^^ . "Koster, U." . "Dif\u00FAze izotopu 6Li v Ta a W byla studov\u00E1na pomoc\u00ED nedestruktivn\u00ED metody neutronov\u00E9ho hloubkov\u00E9ho profilov\u00E1n\u00ED. P\u0159edb\u011B\u017En\u00E9 v\u00FDsledky poukazuj\u00ED na slo\u017Eitou dif\u00FAzi atom\u016F 6Li ve wolframu a tantalu. Experiment potvrdil, \u017Ee dif\u00FAze podle Fickova z\u00E1kona je ovlivn\u011Bna p\u0159\u00EDtomnost\u00ED past\u00ED a radia\u010Dn\u00EDmi defekty v povrchov\u00E9 vrstv\u011B vzorku. Dal\u0161\u00ED experimenty a po\u010D\u00EDta\u010Dov\u00E9 simulace dif\u00FAzn\u00EDho procesu pokra\u010Duj\u00ED."@cs . . "RIV/61389005:_____/05:00042956" . . "5"^^ . "RIV/61389005:_____/05:00042956!RIV07-AV0-61389005" . "Defect and Diffusion Forum" . . . "diffusion; lithium; tantalum"@en . "Dif\u00FAze 6- Li v tantalu a wolframu studovan\u00E1 pomoc\u00ED neutronov\u00E9ho hloubkov\u00E9ho profilov\u00E1n\u00ED"@cs . "Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique"@en . . . "3"^^ . "Vac\u00EDk, Ji\u0159\u00ED" . "P(GA202/03/0891), P(GA202/05/0410), Z(AV0Z10480505), Z(MSM2672244501)" . . . . "Dif\u00FAze 6- Li v tantalu a wolframu studovan\u00E1 pomoc\u00ED neutronov\u00E9ho hloubkov\u00E9ho profilov\u00E1n\u00ED"@cs . . . . "The objective of this work was the study of Li-6 diffusion in the Ta and W refractory metals. The samples were prepared by ion implantation of 380 keV Li-6(+) ions into W and Ta thin foils (up to the fluence of 10(16) ions/cm(2)) and annealed up to the temperature 1940 degrees C. The depth profiles of Li-6 were determined using the Thermal Neutron Depth Profiling (TNDP) technique. The results showed that diffusion of Li-6 in both W and Ta foils is very complex and cannot be described by simple Fick's laws. Trapping centers (in the subsurface layers of both W and Ta metals) were supposed in a trial to explain the Li-6 diffusion behaviour. However, the Li-6 depth profiles were only partly explained. Other aspects are necessary to take into account for more proper quantification; such as spatially dependent diffusion coefficients, etc."@en . . "CH - \u0160v\u00FDcarsk\u00E1 konfederace" . . . . "Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique" . "518101" .