Measurements of erosion mechanisms from solid and liquid materials in PISCES-B

被引：77

作者：

Doerner, RP ^{[1
]}

Baldwin, MJ ^{[1
]}

Conn, RW ^{[1
]}

Grossman, AA ^{[1
]}

Luckhardt, SC ^{[1
]}

Seraydarian, R ^{[1
]}

Tynan, GR ^{[1
]}

Whyte, DG ^{[1
]}

机构：

[1] Univ Calif San Diego, Fus Energy Res Program, La Jolla, CA 92093 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2001年 / 290卷

关键词：

lithium; chemical erosion; tungsten; PISCES B;

D O I：

10.1016/S0022-3115(00)00568-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

PISCES-B is a steady-state linear-plasma simulator facility dedicated to the study of plasma-material interactions. This paper will summarize recent experiments conducted in PISCES in the areas of: plasma-liquid-metal interactions, the flux dependence of the chemical erosion of graphite, and surface modification to tungsten samples exposed to high-fluence plasmas. Enhanced erosion of liquid-metal samples exposed to plasma is observed for both lithium and gallium samples. The surface stratification of liquid-metals is discussed as a possible explanation. The importance of correction terms in the interpretation of the chemical erosion measurements from graphite samples is then emphasized. And finally, surface analysis of tungsten samples, after deuterium plasma bombardment, has revealed microscopic damage in the surface at ion energies below the sputtering threshold energy. This damage appears to be due to pockets of deuterium gas forming within the tungsten and subsequently rupturing. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：166 / 172

页数：7

共 27 条

[1] DISTRIBUTION OF ATOMS AT THE SURFACE OF LIQUID MERCURY [J].

BARTON, SW ;

THOMAS, BN ;

NOVAK, F ;

WEBER, PM ;

HARRIS, J ;

DOLMER, P ;

BLOCH, JM ;

RICE, SA .

NATURE, 1986, 321 (6071) :685-687

[2] Plasma sputtered Mo impurity transport experiment in PISCES-B Mod; Assessment of atomic process rate coefficients and redeposition characteristics [J].

Boivin, R ;

Brooks, JN ;

Khandagle, MJ ;

Hirooka, Y ;

Won, J .

JOURNAL OF NUCLEAR MATERIALS, 1996, 230 (02) :101-109

[3] NEAR-SURFACE SPUTTERED PARTICLE-TRANSPORT FOR AN OBLIQUE-INCIDENCE MAGNETIC-FIELD PLASMA [J].

BROOKS, JN .

PHYSICS OF FLUIDS B-PLASMA PHYSICS, 1990, 2 (08) :1858-1863

[4] A STUDY OF THE LIQUID-VAPOR INTERFACE OF MERCURY - COMPUTER-SIMULATION RESULTS [J].

DEVELYN, MP ;

RICE, SA .

JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (08) :5081-5095

[5] A PSEUDOATOM THEORY FOR THE LIQUID-VAPOR INTERFACE OF SIMPLE METALS - COMPUTER-SIMULATION STUDIES OF SODIUM AND CESIUM [J].

DEVELYN, MP ;

RICE, SA .

JOURNAL OF CHEMICAL PHYSICS, 1983, 78 (08) :5225-5249

[6] Beryllium dust generation resulting from plasma bombardment [J].

Doerner, R ;

Mays, C .

FUSION ENGINEERING AND DESIGN, 1997, 37 (02) :325-331

[7] Mixed-material coating formation on plasma-facing components [J].

Doerner, RP ;

Grossman, AA ;

Luckhardt, S ;

Seraydarian, R ;

Sze, FC ;

Whyte, DG .

JOURNAL OF NUCLEAR MATERIALS, 1999, 266 :392-398

[8]

ERENTS SK, 1976, J NUCL MATER, V63, P399, DOI 10.1016/0022-3115(76)90355-X

[9]

FEDERICI G, UNPUB NUCL FUS

[10]

GEOBEL DM, 1984, J NUCL MATER, V121, P277

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