Surface modification and droplet formation under exposures of tungsten coatings with ELM-like transient loads
Features of surface modification of tungsten coatings after repetitive irradiation with QSPA Kh-50 plasma pulses are presented. Cracking, development of tungsten surface morphology and emission of droplets are studied. Targets were made from samples of steel covered by tungsten coatings of different...
Збережено в:
| Дата: | 2017 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2017
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| Назва видання: | Вопросы атомной науки и техники |
| Теми: | |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/122146 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Surface modification and droplet formation under exposures of tungsten coatings with ELM-like transient loads / O.V. Byrka, N.N. Aksenov, S.S. Herashchenko, V.A. Makhlaj, V.S. Taran, O.I. Timoshenko // Вопросы атомной науки и техники. — 2017. — № 1. — С. 115-118. — Бібліогр.: 12 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Features of surface modification of tungsten coatings after repetitive irradiation with QSPA Kh-50 plasma pulses are presented. Cracking, development of tungsten surface morphology and emission of droplets are studied. Targets were made from samples of steel covered by tungsten coatings of different thickness (4, 12, 40 μm). Pre-coated targets were irradiated with powerful plasma streams of heat fluxes relevant to ELMs in ITER. Mechanisms of modification and damaging of tungsten coatings under irradiation with powerful plasma streams are discussed. |
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