Slow positron annihilation studies on helium irradiated tungsten
作者： Minghuan Cui , Cunfeng Yao , Tielong Shen , Lilong Pang , Yabin Zhu
DOI: 10.1016/J.NIMB.2017.03.127
关键词:
摘要: Abstract Pure tungsten samples were irradiated to 1.0 × 10 16 , 5.0 × 10 and 17 ions/cm 2 at room temperature with 500 200 keV helium ions, respectively, understand the growth of vacancy like defects in induced by irradiation. The doppler broadening spectroscopy slow positron annihilation was used characterize behavior defects, such as Helium n Vacancy m (i.e. He V ) complexes, When irradiation fluence is below size density show increasing trends fluences. decreases depths due amounts or n/m ratios complexes. reach certain values, increases. increases decreases. 500 keV grow larger. formation evolution mechanism complexes are discussed this paper on bases dpa levels, concentrations, C /dpa electronic energy loss depositions.
harvard.edu
sci-hub.se 参考文章(20)
Y. Ueda, J.W. Coenen, G. De Temmerman, R.P. Doerner, J. Linke, V. Philipps, E. Tsitrone, Research status and issues of tungsten plasma facing materials for ITER and beyond Fusion Engineering and Design. ,vol. 89, pp. 901- 906 ,(2014) , 10.1016/J.FUSENGDES.2014.02.078
P.P. Liu, Q. Zhan, Z.Y. Fu, Y.P. Wei, Y.M. Wang, F.M. Wang, S. Ohnuki, F.R. Wan, Surface and internal microstructure damage of He-ion-irradiated CLAM steel studied by cross-sectional transmission electron microscopy Journal of Alloys and Compounds. ,vol. 649, pp. 859- 864 ,(2015) , 10.1016/J.JALLCOM.2015.07.177
Eryang Lu, Xingzhong Cao, Shuoxue Jin, Chunxiong Zhang, Peng Zhang, Liping Guo, Te Zhu, Yihao Gong, Baoyi Wang, The evolution of micro defects in He + irradiated FeCrNi alloy during isochronal annealing Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 356, pp. 94- 98 ,(2015) , 10.1016/J.NIMB.2015.04.055
A. Debelle, M.F. Barthe, T. Sauvage, R. Belamhawal, A. Chelgoum, P. Desgardin, H. Labrim, Helium behaviour and vacancy defect distribution in helium implanted tungsten Journal of Nuclear Materials. ,vol. 362, pp. 181- 188 ,(2007) , 10.1016/J.JNUCMAT.2007.01.021
M.J. Baldwin, R.P. Doerner, Formation of helium induced nanostructure ‘fuzz’ on various tungsten grades Journal of Nuclear Materials. ,vol. 404, pp. 165- 173 ,(2010) , 10.1016/J.JNUCMAT.2010.06.034
S.J. Zinkle, Microstructure of ion irradiated ceramic insulators Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 91, pp. 234- 246 ,(1994) , 10.1016/0168-583X(94)96224-3
Xin Ou, Wolfgang Anwand, Reinhard Kögler, Hong-Bo Zhou, Asta Richter, The role of helium implantation induced vacancy defect on hardening of tungsten Journal of Applied Physics. ,vol. 115, pp. 123521- ,(2014) , 10.1063/1.4870234
Z G Wang, C Dufour, E Paumier, M Toulemonde, The Se sensitivity of metals under swift-heavy-ion irradiation: a transient thermal process Journal of Physics: Condensed Matter. ,vol. 6, pp. 6733- 6750 ,(1994) , 10.1088/0953-8984/6/34/006
M.H. Cui, Z.G. Wang, L.L. Pang, T.L. Shen, C.F. Yao, B.S. Li, J.Y. Li, X.Z. Cao, P. Zhang, J.R. Sun, Y.B. Zhu, Y.F. Li, Y.B. Sheng, Temperature dependent defects evolution and hardening of tungsten induced by 200 keV He-ions Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 307, pp. 507- 511 ,(2013) , 10.1016/J.NIMB.2012.12.083
Shin Kajita, Naoaki Yoshida, Reiko Yoshihara, Noriyasu Ohno, Masato Yamagiwa, TEM observation of the growth process of helium nanobubbles on tungsten: Nanostructure formation mechanism Journal of Nuclear Materials. ,vol. 418, pp. 152- 158 ,(2011) , 10.1016/J.JNUCMAT.2011.06.026