Coatings on a First Wall Plasma-Facing Surface: Analysis and High Heat Flux Testing on the Tsefey-M E-Beam Facility

被引：0

作者：

Piskarev, P. Yu. ^{[1
]}

Rulev, R. V. ^{[1
]}

Mazul, I. V. ^{[1
]}

Krasilnikov, A. V. ^{[2
]}

Pisarev, A. A. ^{[3
]}

Kuteev, B. V. ^{[4
]}

Kolesnik, M. S. ^{[1
]}

Dushik, V. V. ^{[5
]}

Bobrov, S. V. ^{[1
]}

Montak, N. V. ^{[1
]}

Rybikov, A. A. ^{[1
]}

Bukatin, T. N. ^{[5
]}

机构：

[1] Efremov Inst, JSC NIIEFA, St Petersburg, Russia

[2] Inst Project ?tr ITER, Moscow, Russia

[3] Natl Res Nucl Univ MEPhI, Moscow, Russia

[4] Kurchatov Inst, Natl Res Ctr, Moscow, Russia

[5] Frumkin Inst Phys Chem & Electrochem, Moscow, Russia

来源：

PHYSICS OF ATOMIC NUCLEI | 2024年 / 87卷 / SUPPL1期

关键词：

first wall; plasma-facing material; boron carbide; tungsten; protective SS coating; atmospheric plasma spraying; chemical vapor deposition; hot isostatic pressing; thermal cycling test;

D O I：

10.1134/S1063778824130076

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Some aspects of the use of coatings for various functional purposes on the first wall plasma-facing surface of a thermonuclear reactor are considered. An important characteristic of coatings is adhesive and fatigue strength under cyclic impact of quasi-stationary heat loads, as well as resistance to high pulsed thermal loads. This paper describes thermal cyclic tests with surface thermal load of water-cooled mockups with various coatings on the heat-receiving surface. The B4C coating, made by atmospheric plasma spraying on a tungsten substrate, demonstrated excellent durability over 1400 thermal cycles at 4.7 MW/m(2). CVD tungsten coating on a copper substrate demonstrated good results after 1000 thermal cycles at 3.3 MW/m(2), but after a similar number of cycles at 5 MW/m(2), cracks were detected on the surface. The stainless steel coating on a copper substrate demonstrated resistance to loads up to 11.9 MW/m(2), as well as excellent durability over 1000 thermal cycles at 8.2 MW/m(2).

引用

页码：S118 / S128

页数：11

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