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Oxygen sorption in tungsten irradiated with deuterium or helium ions at 300 and 650 Kстатья
- Авторы: Zalavutdinov R.Kh, Alimov V.Kh, Gorodetsky A.E., Zakharov A.P.
- Журнал: Physica Scripta
- Год издания: 2009
- Издательство: Royal Swedish Academy of Sciences
- Местоположение издательства: Sweden
- DOI: 10.1088/0031-8949/2009/T138/014046
- Аннотация: Oxygen retention in single crystal W irradiated with 20 keV D(2)(+) (10 keVD(-1)) ions (300 and 650 K) or 20 keV He(+) ions (300K) and then exposed to air for 2 days at 300K has been studied. After irradiation with D ions, the oxygen does not penetrate into the bulk of the irradiated tungsten and is present only in the surface oxide layer. It can be explained that an open porosity is not formed in the ion-stopping zone due to prolonged D ion implantation (up to a fluence of 1.4 x 10(24) Dm(-2)). In the case of He ion irradiation, oxygen is accumulated in the ion-stopping zone and its content increases 8-10 times as compared with unirradiated tungsten. We interpret the observation of an increase in oxidizing surface area as due to the open porosity formation under the He irradiation.
- Добавил в систему: Залавутдинов Ринад Харисович