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Skakov M, Batyrbekov E, Sokolov I, Miniyazov A, Tulenbergenov T, Sapataev Y, Orazgaliyev N, Bukina O, Zhanbolatova G, Kozhakhmetov Y. Influence of Hydrogen Plasma on the Surface Structure of Beryllium. MATERIALS (BASEL, SWITZERLAND) 2022; 15:6340. [PMID: 36143649 PMCID: PMC9503244 DOI: 10.3390/ma15186340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/01/2022] [Accepted: 09/04/2022] [Indexed: 06/16/2023]
Abstract
This paper presents the research results of hydrogen plasma effect on the surface structure of the TGP-56 beryllium. In the linear simulator, the operating conditions of the first wall of ITER are simulated. Beryllium was irradiated with hydrogen plasma at surface temperatures of ~360 °C, ~800 °C, and ~1200 °C, depending on its location in the ITER chamber; with a different number of pulses with a duration of each pulse of 500 s. Samples of irradiated beryllium were subjected to a set of material studies. Experimental data were obtained on the change in the structure of the surface and edges of the beryllium samples after the plasma effect. It was found that at normal (2 MW/m2) and increased (4.7 MW/m2) heat fluxes on the first wall of the ITER, the edges and beryllium surface have good resistance to erosion. Under critical conditions close to the melting point, beryllium strongly erodes and evaporates. It has been established that this material has a high resource resistance to hydrogen plasma effect in the ITER under operating conditions.
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Affiliation(s)
- Mazhyn Skakov
- National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Erlan Batyrbekov
- National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Igor Sokolov
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
- The Department of Applied Physics and Heat Power Engineering, Shakarim University, Semey 071412, Kazakhstan
| | - Arman Miniyazov
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
- The Department of Applied Physics and Heat Power Engineering, Shakarim University, Semey 071412, Kazakhstan
| | - Timur Tulenbergenov
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
- The Department of Applied Physics and Heat Power Engineering, Shakarim University, Semey 071412, Kazakhstan
| | - Yerzhan Sapataev
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Nurkhat Orazgaliyev
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Olga Bukina
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Gainiya Zhanbolatova
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
| | - Yernat Kozhakhmetov
- Institute of Atomic Energy Branch of National Nuclear Center of the Republic of Kazakhstan, Kurchatov 071100, Kazakhstan
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Real-time estimation and control of divertor surface heat flux on the DIII-D tokamak. FUSION ENGINEERING AND DESIGN 2021. [DOI: 10.1016/j.fusengdes.2021.112560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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