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Description
| - Difúze izotopu 6Li v Ta a W byla studována pomocí nedestruktivní metody neutronového hloubkového profilování. Předběžné výsledky poukazují na složitou difúzi atomů 6Li ve wolframu a tantalu. Experiment potvrdil, že difúze podle Fickova zákona je ovlivněna přítomností pastí a radiačními defekty v povrchové vrstvě vzorku. Další experimenty a počítačové simulace difúzního procesu pokračují. (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.
- 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)
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Title
| - Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique
- Difúze 6- Li v tantalu a wolframu studovaná pomocí neutronového hloubkového profilování (cs)
- Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique (en)
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skos:prefLabel
| - Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique
- Difúze 6- Li v tantalu a wolframu studovaná pomocí neutronového hloubkového profilování (cs)
- Diffusion of Li-6 in tantalum and tungsten studied by the neutron depth profiling technique (en)
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skos:notation
| - RIV/61389005:_____/05:00042956!RIV07-AV0-61389005
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(GA202/03/0891), P(GA202/05/0410), Z(AV0Z10480505), Z(MSM2672244501)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/61389005:_____/05:00042956
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - diffusion; lithium; tantalum (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - CH - Švýcarská konfederace
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
| - Defect and Diffusion Forum
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...v/svazekPeriodika
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http://linked.open...iv/tvurceVysledku
| - Hnatowicz, Vladimír
- Vacík, Jiří
- Koster, U.
- Pasold, G.
- Červená, Jarmila
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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