Publication: SURFACE MODIFICATION AND SPUTTERING EROSION OF IRON EXPOSED TO LOW-ENERGY, HIGH FLUX DEUTERIUM PLASMAS SEEDED WITH METAL SPECIES
| dc.contributor.author | ALIMOV, V. KH. | |
| dc.contributor.author | HATANO, Y. | |
| dc.contributor.author | BALDEN, M. | |
| dc.contributor.author | OYAIZU, M. | |
| dc.contributor.author | ISOBE, K. | |
| dc.contributor.author | NAKAMURA, H. | |
| dc.contributor.author | HAYASHI, T. | |
| dc.date.accessioned | 2025-03-20T10:08:53Z | |
| dc.date.available | 2025-03-20T10:08:53Z | |
| dc.date.issued | 2017 | |
| dc.description.abstract | Fe targets surrounded with (i) 304 type stainless steel composed of mid-Z elements: Fe, Cr, Ni, and Mn (designated as Fe[304SS] targets) and with (ii) high-Z tungsten (designated as Fe[W] targets) were exposed to low-energy (140 and 200 eV), high flux (about 1022 D/m2s) deuterium (D) plasmas to fluences of 5×1025 and 1026 D/m2 at various temperatures. The surface morphology of the Fe targets is found to be dependent strongly on (i) atomic number of re-deposited species emerged from sputtering of the 304 type stainless steel (mid-Z elements) or tungsten (high-Z element) and on (ii) the exposure temperature. On the Fe[304SS] surface exposed at various temperatures to the D plasmas, only well-known topographical structures resulted from the variations of sput-tering yield with crystal orientation (ridges between different grains) are ob-served. By contrast, nano-structured layers enriched with tungsten are formed on the Fe[W] surfaces. Due to re-deposition of W particles and preferential sputtering of Fe, the effective W concentration in the outermost nano-structured layers reaches 60 at.%. Main physical processes occurring on the Fe[W] sur-face under D plasma exposure and influencing formation of the nano-structured surface layer are assumed to be sputtering, re-deposition, crystallite nucleation and growth due to surface atoms diffusion. | |
| dc.identifier.citation | SURFACE MODIFICATION AND SPUTTERING EROSION OF IRON EXPOSED TO LOW-ENERGY, HIGH FLUX DEUTERIUM PLASMAS SEEDED WITH METAL SPECIES [Текст.] / ALIMOV V.KH. [и др.] // Взаимодействие плазмы с поверхностью: сборник научных трудов XX конференции - 2017. - С. 76 | |
| dc.identifier.uri | https://openrepository.mephi.ru/handle/123456789/36709 | |
| dc.publisher | НИЯУ МИФИ | |
| dc.subject | Конференции НИЯУ МИФИ | |
| dc.title | SURFACE MODIFICATION AND SPUTTERING EROSION OF IRON EXPOSED TO LOW-ENERGY, HIGH FLUX DEUTERIUM PLASMAS SEEDED WITH METAL SPECIES | |
| dc.type | Article | |
| dspace.entity.type | Publication |