Effect of irradiation with pulsed fluxes of high-temperature deuterium plasma and fast ions on the structure of the surface layer of W-1% La2O3 alloy

被引：0

作者：

Demina E.V. ^{[1
]}

Gribkov V.A. ^{[1
,2
]}

Pimenov V.N. ^{[1
]}

Maslyaev S.A. ^{[1
]}

Prusakova M.D. ^{[1
]}

Shirokova V. ^{[3
]}

Laas T. ^{[3
]}

Ugaste Y. ^{[3
]}

机构：

[1] Baikov Institute of Metallurgy and Materials Science, Russian Academy of Sciences, Moscow

[2] Institute of Plasma Physics and Laser Microfusion, Warsaw

[3] Tallinn University, Tallinn

来源：

Demina, E.V. (elenadyom@mail.ru) | 1600年 / Maik Nauka Publishing / Springer SBM卷 / 05期

关键词：

deuterium plasma; divertor; fusion reactor; irradiation; La-W-O oxides; surface structure; tungsten alloys;

D O I：

10.1134/S2075113314030058

中图分类号：

学科分类号：

摘要：

Scanning electron microscopy, X-ray electron probe analysis, and X-ray phase analysis are used to investigate the surface structure of W-1% La2O3 alloy after irradiation with submicrosecond pulses of deuterium ions and high-temperature deuterium plasma in a Plasma Focus installation for simulation of a plasma disruption in the ITER tokamak. It is established that melting of the tungsten surface and formation of micro-cracks take place under irradiation with a power flux density up to 1012 W/cm2. Introduction of La2O3 particles in the alloy leads to the formation of complex La-W-O oxides with lower melting points, which results in the formation of a nonuniform structure affecting the high-temperature response of the material. © 2014, Pleiades Publishing, Ltd.

引用

页码：211 / 218

页数：7

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