TY - JOUR
T1 - Deuterium retention in Toughened, Fine-Grained Recrystallized Tungsten
AU - Oya, M.
AU - Uekita, K.
AU - Lee, H. T.
AU - Ohtsuka, Y.
AU - Ueda, Y.
AU - Kurishita, H.
AU - Kreter, A.
AU - Coenen, J. W.
AU - Philipps, V.
AU - Brezinsek, S.
AU - Litnovsky, A.
AU - Sugiyama, K.
AU - Torikai, Y.
PY - 2013
Y1 - 2013
N2 - Deuterium retention in Toughened, Fine-Grained Recrystallized W (TFGR W-1.1 wt%TiC) was studied, compared to pure W. D implantation was performed to a fluence of 1 × 1024m 2 at temperatures of 473-873 K, followed by TDS. It was found that D retention in TFGR W is higher than in pure W at all irradiation temperatures. Namely, at 673 K, D retention in TFGR W is six times higher than pure W. TDS spectrum of TFGR W irradiated at 573 Khas a large peak around ∼700 K with small shoulder up to ∼1100 K. In the case of D + He simultaneous irradiation, D retention is about 30% lower than for pure D. In addition, plasma exposure experiment was also conducted in TEXTOR, followed by NRA. Higher retention in TFGR W-1.1 wt%TiC could be attributed to high grain boundary diffusion (then trapping deeper into the bulk) and formation of TiD2.
AB - Deuterium retention in Toughened, Fine-Grained Recrystallized W (TFGR W-1.1 wt%TiC) was studied, compared to pure W. D implantation was performed to a fluence of 1 × 1024m 2 at temperatures of 473-873 K, followed by TDS. It was found that D retention in TFGR W is higher than in pure W at all irradiation temperatures. Namely, at 673 K, D retention in TFGR W is six times higher than pure W. TDS spectrum of TFGR W irradiated at 573 Khas a large peak around ∼700 K with small shoulder up to ∼1100 K. In the case of D + He simultaneous irradiation, D retention is about 30% lower than for pure D. In addition, plasma exposure experiment was also conducted in TEXTOR, followed by NRA. Higher retention in TFGR W-1.1 wt%TiC could be attributed to high grain boundary diffusion (then trapping deeper into the bulk) and formation of TiD2.
UR - http://www.scopus.com/inward/record.url?scp=84885429692&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84885429692&partnerID=8YFLogxK
U2 - 10.1016/j.jnucmat.2013.01.230
DO - 10.1016/j.jnucmat.2013.01.230
M3 - Article
AN - SCOPUS:84885429692
SN - 0022-3115
VL - 438
SP - S1052-S1054
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
IS - SUPPL
ER -