First study of lithium boron composite as plasma facing material

First study of lithium boron composite as plasma facing material

Lithium-Boron Composite Material (LBCM) is presented as a plasma-facing material with a lot of promise from the perspective of liquid metal first wall. LBCM consists of ∼ 20 w.% boron and ∼ 80 w.% lithium, arranged in the form of a Li5B4 matrix filled with metal lithium, similar to capillary porous...

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Bibliographic Details
Main Authors: S. Krat, R. Selivanov, I. Sorokin, F. Podolyako, N. Sergeev, A. Alieva, D. Bachurina, M. Zaripova, M. Isaenkova, E. Fefelova, O. Volkova, V. Zaharov
Format: Article
Language:English
Published: Elsevier 2023-06-01
Series:Nuclear Materials and Energy
Subjects:
Plasma facing materials
First wall
Lithium
Boron
Composite materials
Online Access:http://www.sciencedirect.com/science/article/pii/S2352179123000625
Description
Summary:Lithium-Boron Composite Material (LBCM) is presented as a plasma-facing material with a lot of promise from the perspective of liquid metal first wall. LBCM consists of ∼ 20 w.% boron and ∼ 80 w.% lithium, arranged in the form of a Li5B4 matrix filled with metal lithium, similar to capillary porous systems (CPS) already used as plasma-facing elements. The characteristic matrix cell size is approximately 5 µm. LBCM was subjected to electron flux and helium plasma in a linear PR-2 device. LBCM maintained physical integrity up to T > 900 °C. Boron didn’t evaporate from LBCM under electron irradiation, but was sputtered during helium bombardment. CPS-like properties, wherein Li from the whole of the LBCM sample was transported to the area of the highest thermal load were observed.
ISSN:2352-1791

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