Retention behavior in tungsten and molybdenum exposed to high fluences of deuterium ions in TPE

被引:45
作者
Sharpe, J. P. [1 ]
Kolasinski, R. D. [2 ]
Shimada, M. [1 ]
Calderoni, P. [1 ]
Causey, R. A. [2 ]
机构
[1] Idaho Natl Lab, Fus Safety Program, Idaho Falls, ID 83415 USA
[2] Sandia Natl Labs, Hydrogen & Met Sci Grp, Livermore, CA 94551 USA
关键词
LOW-ENERGY; DISCHARGE;
D O I
10.1016/j.jnucmat.2009.01.195
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The Tritium Plasma Experiment (TPE) has been used to investigate deuterium fuel retention behavior in tungsten and molybdenum-materials utilized for plasma-facing surfaces in some existing tokamak plasma devices and under consideration for future devices. Although several studies have been performed over the past several years on these metals, many issues remain unresolved, including for example blister formation mechanisms and correlation to surface conditions. In this study, we expose several metal samples to deuterium ion fluences up to 10(26) ions/m(2) and measure retention behavior with thermal desorption spectroscopy. Fractional retention of up to 2.0 x 10(-5) is found for W at 600 K, and Mo similarly retains deuterium at a fraction of 1.5 x 10(-5) at 600 K. Blistering was found for W samples exposed at temperatures above 453 K, whereas blistering was not observed for Mo samples at any experiment temperature. (C) 2009 Elsevier B.V. All rights reserved.
引用
收藏
页码:709 / 712
页数:4
相关论文
共 10 条
[1]   Deuterium retention in tungsten exposed to low-energy, high-flux clean and carbon-seeded deuterium plasmas [J].
Alimov, V. Kh. ;
Roth, J. ;
Causey, R. A. ;
Komarov, D. A. ;
Linsmeier, Ch. ;
Wiltner, A. ;
Kost, F. ;
Lindig, S. .
JOURNAL OF NUCLEAR MATERIALS, 2008, 375 (02) :192-201
[2]   Tritium retention in tungsten exposed to intense fluxes of 100 eV tritons [J].
Causey, R ;
Wilson, K ;
Venhaus, T ;
Wampler, WR .
JOURNAL OF NUCLEAR MATERIALS, 1999, 266 :467-471
[3]   Deuterium retention and release from molybdenum exposed to a Penning discharge [J].
Causey, RA ;
Kunz, CL ;
Cowgill, DF .
JOURNAL OF NUCLEAR MATERIALS, 2005, 337 (1-3) :600-603
[4]   Outgassing from and deuterium retention in beryllium and Be/C mixed-material plasma-facing components [J].
Doerner, RP ;
Conn, RW ;
Luckhardt, SC ;
Sze, FC ;
Won, J .
FUSION ENGINEERING AND DESIGN, 2000, 49-50 :183-188
[5]   EROSION AND REDEPOSITION EXPERIMENTS IN THE PISCES FACILITY [J].
GOEBEL, DM ;
HIROOKA, Y ;
CONN, RW ;
LEUNG, WK ;
CAMPBELL, GA ;
BOHDANSKY, J ;
WILSON, KL ;
BAUER, W ;
CAUSEY, RA ;
PONTAU, AE ;
KRAUSS, AR ;
GRUEN, DM ;
MENDELSOHN, MH .
JOURNAL OF NUCLEAR MATERIALS, 1987, 145 :61-70
[6]   Measurement and modeling of molecular ion concentrations in a hydrogen reflex-arc discharge [J].
Hollmann, EM ;
Pigarov, AY .
PHYSICS OF PLASMAS, 2002, 9 (10) :4330-4339
[7]  
SHIMADA M, 2009, REV SCI INS IN PRESS
[8]   BEHAVIOR OF DEUTERIUM IMPLANTED IN MO [J].
TANABE, T ;
HACHINO, H ;
TAKEO, M .
JOURNAL OF NUCLEAR MATERIALS, 1990, 176 :666-671
[9]   Behavior of tungsten exposed to high fluences of low energy hydrogen isotopes [J].
Venhaus, T ;
Causey, R ;
Doerner, R ;
Abeln, T .
JOURNAL OF NUCLEAR MATERIALS, 2001, 290 :505-508
[10]   Dynamics of hydrogenic retention in molybdenum: First results from DIONISOS [J].
Wright, G. M. ;
Whyte, D. G. ;
Lipschultz, B. ;
Doerner, R. P. ;
Kulpin, J. G. .
JOURNAL OF NUCLEAR MATERIALS, 2007, 363 (1-3) :977-983