Brittle destruction of carbon-based materials in transient heat load tests

被引：24

作者：

Linke, J ^{[1
]}

Amouroux, S ^{[1
]}

Berthe, E ^{[1
]}

Koza, Y ^{[1
]}

Kühnlein, W ^{[1
]}

Rödig, M ^{[1
]}

机构：

[1] EURATOM, Forschungszentrum Julich GmbH, D-52425 Julich, Germany

来源：

FUSION ENGINEERING AND DESIGN | 2003年 / 66-68卷

关键词：

brittle destruction; electron beam tests; carbon based materials;

D O I：

10.1016/S0920-3796(03)00164-9

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

To investigate the phenomenon of brittle destruction (BD), isotropic fine-grain graphites and carbon fiber composites (CFCs) with and without silicon doping have been exposed to intense transient thermal loads in the electron beam test facility JUDITH. For different pulse durations (I to 5, 100, 5000 ms) the deposited energy density has been increased stepwise to determine the threshold for the BD process. Particle emission was diagnosed using time-resolved measurements of the absorbed current and by digital photography. A clear correlation of the absorbed current and the onset of the particle emission processes has been established. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：395 / 399

页数：5

共 10 条

[1] Characterization and analysis of dusts produced in three experimental tokamaks: TFTR, DIII-D, and Alcator C-Mod [J].

Carmack, WJ ;

Anderl, RA ;

Pawelko, RJ ;

Smolik, GR ;

McCarthy, KA .

FUSION ENGINEERING AND DESIGN, 2000, 51-52 :477-484

[2] Dust characterization and analysis in Tore-Supra [J].

Chappuis, P ;

Tsitrone, E ;

Mayne, M ;

Armand, X ;

Linke, H ;

Bolt, H ;

Petti, D ;

Sharpe, JP .

JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :245-249

[3] Erosion/deposition issues at JET [J].

Coad, JP ;

Bekris, N ;

Elder, JD ;

Erents, SK ;

Hole, DE ;

Lawson, KD ;

Matthews, GF ;

Penzhorn, RD ;

Stangeby, PC .

JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :224-230

[4] Key ITER plasma edge and plasma-material interaction issues [J].

Federici, G ;

Andrew, P ;

Barabaschi, P ;

Brooks, J ;

Doerner, R ;

Geier, A ;

Herrmann, A ;

Janeschitz, G ;

Krieger, K ;

Kukushkin, A ;

Loarte, A ;

Neu, R ;

Saibene, G ;

Shimada, M ;

Strohmayer, G ;

Sugihara, M .

JOURNAL OF NUCLEAR MATERIALS, 2003, 313 :11-22

[5] Tritium behavior in eroded dust and debris of plasma-facing materials [J].

Hassanein, A ;

Wiechers, B ;

Konkashbaev, I .

JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :295-300

[6] Material degradation and particle formation under transient thermal loads [J].

Linke, J ;

Akiba, M ;

Duwe, R ;

Lodato, A ;

Penkalla, HJ ;

Rödig, M ;

Schöpflin, K .

JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :1102-1106

[7] Carbon particles emission, brittle destruction and co-deposit formation:: Experience from electron beam experiments and controlled fusion devices [J].

Linke, J ;

Rubel, M ;

Malmberg, JA ;

Drake, JR ;

Duwe, R ;

Penkalla, HJ ;

Rödig, M ;

Wessel, E .

PHYSICA SCRIPTA, 2001, T91 :36-42

[8] Dust and flakes in the JET MkIIa divertor, analysis and results [J].

Peacock, AT ;

Andrew, P ;

Cetier, P ;

Coad, JP ;

Federici, G ;

Hurd, FH ;

Pick, MA ;

Wu, CH .

JOURNAL OF NUCLEAR MATERIALS, 1999, 266 :423-428

[9] Brittle destruction of carbon based materials under off-normal ITER-FEAT conditions [J].

Pestchanyi, S ;

Würz, H .

PHYSICA SCRIPTA, 2001, T91 :84-89

[10] Dust in fusion devices - experimental evidence, possible sources and consequences [J].

Winter, J .

PLASMA PHYSICS AND CONTROLLED FUSION, 1998, 40 (06) :1201-1210

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