Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties

Galatanu, Magdalena; Enculescu, Monica; Galatanu, Andrei; Ticos, Dorina; Dumitru, Marius; Ticos, Catalin

doi:10.3390/nano13061012

Open AccessArticle

Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties

by

Magdalena Galatanu

¹,

Monica Enculescu

¹

,

Andrei Galatanu

^1,*

,

Dorina Ticos

²,

Marius Dumitru

²

and

Catalin Ticos

²

¹

National Institute of Materials Physics, Atomistilor Street 405 A, Magurele, 077125 Ilfov, Romania

²

National Institute for Laser, Plasma and Radiation Physics, Atomistilor Street 409, Magurele, 077125 Ilfov, Romania

^*

Author to whom correspondence should be addressed.

Nanomaterials 2023, 13(6), 1012; https://doi.org/10.3390/nano13061012

Submission received: 1 February 2023 / Revised: 28 February 2023 / Accepted: 7 March 2023 / Published: 11 March 2023

(This article belongs to the Special Issue Applied Physics and Nanomaterials)

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Abstract

In fusion reactors, such as ITER or DEMO, the plasma used to generate nuclear reactions will reach temperatures that are an order of magnitude higher than in the Sun’s core. Although the plasma is not supposed to be in contact with the reactor walls, a large amount of heat generated by electromagnetic radiation, electrons and ions being expelled from the plasma will reach the plasma-facing surface of the reactor. Especially for the divertor part, high heat fluxes of up to 20 MW/m² are expected even in normal operating conditions. An improvement in the plasma-facing material (which is, in the case of ITER, pure Tungsten, W) is desired at least in terms of both a higher recrystallization temperature and a lower brittle-to-ductile transition temperature. In the present work, we discuss three microengineering routes based on inclusions of nanometric dispersions, which are proposed to improve the W properties, and present the microstructural and thermophysical properties of the resulting W-based composites with such dispersions. The materials’ behavior after 6 MeV electron irradiation tests is also presented, and their further development is discussed.

Keywords: materials for fusion applications; high-heat-flux materials; thermophysical properties; 6 MeV electron irradiation

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MDPI and ACS Style

Galatanu, M.; Enculescu, M.; Galatanu, A.; Ticos, D.; Dumitru, M.; Ticos, C. Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties. Nanomaterials 2023, 13, 1012. https://doi.org/10.3390/nano13061012

AMA Style

Galatanu M, Enculescu M, Galatanu A, Ticos D, Dumitru M, Ticos C. Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties. Nanomaterials. 2023; 13(6):1012. https://doi.org/10.3390/nano13061012

Chicago/Turabian Style

Galatanu, Magdalena, Monica Enculescu, Andrei Galatanu, Dorina Ticos, Marius Dumitru, and Catalin Ticos. 2023. "Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties" Nanomaterials 13, no. 6: 1012. https://doi.org/10.3390/nano13061012

APA Style

Galatanu, M., Enculescu, M., Galatanu, A., Ticos, D., Dumitru, M., & Ticos, C. (2023). Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties. Nanomaterials, 13(6), 1012. https://doi.org/10.3390/nano13061012

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

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Microengineering Design for Advanced W-Based Bulk Materials with Improved Properties

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