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Article

Irradiation of W and K-Doped W Laminates without or with Cu, V, Ti Interlayers under a Pulsed 6 MeV Electron Beam

1
National Institute for Laser, Plasma and Radiation Physics, Atomistilor Street 409, Magurele, 077125 Ilfov, Romania
2
National Institute of Materials Physics, Atomistilor Street 405 A, Magurele, 077125 Ilfov, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Sergei Yu Tarasov
Materials 2022, 15(3), 956; https://doi.org/10.3390/ma15030956
Received: 7 December 2021 / Revised: 21 January 2022 / Accepted: 23 January 2022 / Published: 26 January 2022
(This article belongs to the Special Issue Materials Thermal Behavior during Laser or Electron Beam Irradiation)
Small multilayered laminated samples consisting of stacks of W (or K-doped W) foils without an interlayer or with interlayers from Cu, V, and Ti were exposed to a pulsed electron beam with an energy of 6 MeV in several irradiation sessions. All samples maintained their macroscopic integrity, suggesting that the W-metal laminate concept is compatible with high heat flux applications. The surface of the samples was analyzed using a scanning electron microscope (SEM) before and after each irradiation session. The experimental results indicate that electron beam irradiation induces obvious modifications on the surface of the samples. Morphological changes such as the appearance of nanodroplets, nanostructures, and melting and cracking, depending on the sample type and the electron beam fluence, are observed. The irradiation is carried out in a vacuum at a pressure of 2 to 4 × 10−2 torr, without active cooling for the samples. The structures observed on the surface of the samples are likely due to electron beam heating and vaporization followed by vapor condensation in the volume adjacent to the surface. View Full-Text
Keywords: electron beam; tungsten; irradiation; surface damages; laminates electron beam; tungsten; irradiation; surface damages; laminates
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MDPI and ACS Style

Ticoș, D.; Galaţanu, M.; Galaţanu, A.; Dumitru, M.; Mitu, M.L.; Udrea, N.; Scurtu, A.; Ticoș, C.M. Irradiation of W and K-Doped W Laminates without or with Cu, V, Ti Interlayers under a Pulsed 6 MeV Electron Beam. Materials 2022, 15, 956. https://doi.org/10.3390/ma15030956

AMA Style

Ticoș D, Galaţanu M, Galaţanu A, Dumitru M, Mitu ML, Udrea N, Scurtu A, Ticoș CM. Irradiation of W and K-Doped W Laminates without or with Cu, V, Ti Interlayers under a Pulsed 6 MeV Electron Beam. Materials. 2022; 15(3):956. https://doi.org/10.3390/ma15030956

Chicago/Turabian Style

Ticoș, D., M. Galaţanu, A. Galaţanu, M. Dumitru, M. L. Mitu, N. Udrea, A. Scurtu, and C. M. Ticoș. 2022. "Irradiation of W and K-Doped W Laminates without or with Cu, V, Ti Interlayers under a Pulsed 6 MeV Electron Beam" Materials 15, no. 3: 956. https://doi.org/10.3390/ma15030956

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