Temperature dependence of surface topography and deuterium interaction with a pure α-Fe exposed to low-energy high-flux D plasma

• Date: 2016
• Main Authors: Nikitin, A.V., Tolstolutskaya, C.D., Ruzhytskiy, V.V., Kopanets, I.E., Karpov, S.A., Vasilenko, R.L., Rostova, G.Y., Rybalchenko, N.D.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2016
• Series: Вопросы атомной науки и техники
• Subjects: Plasma dynamics and plasma-wall interaction
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/115453
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Temperature dependence of surface topography and deuterium interaction with a pure α-Fe exposed to low-energy high-flux D plasma / A.V. Nikitin, G.D. Tolstolutskaya, V.V. Ruzhytskiy, I.E. Kopanets, S.A. Karpov, R.L. Vasilenko, G.Y. Rostova, N.D. Rybalchenko // Вопросы атомной науки и техники. — 2016. — № 6. — С. 117-120. — Бібліогр.: 8 назв. — англ.

Surface topography and deuterium interaction with a-Fe under glow discharge hydrogen (deuterium) ions bombardment with energy of ~1 keV at ion fluencies of (0.02…1)∙10²⁴ D/m² and various temperatures have been examined. The methods used were scanning electron microscopy, thermal desorption spectroscopy and the D(³He,p) ⁴He nuclear reaction. Formation of blisters was observed in the temperature range 230…340 K. Roundshaped cavities contained small nonmetallic particles FexOy (x=1…2, y=1…4) were founded on the irradiated surface of α-Fe. Temperature dependence of average blister diameter, the deuterium depth profile and temperature of deuterium retention were studied