@article{bibcite_8219,
  author = {A. Dubinko and D. Terentyev and A. Bakaeva and T. Pardoen and M. Zibrov and T. W. Morgan},
  title = {Effect of high flux plasma exposure on the micro-structural and -mechanical properties of ITER specification tungsten},
  abstract = {We have performed a combined study using transmission electron microscopy (TEM), nuclear reaction analysis (NRA) and nano-indentation (NI) techniques to reveal the impact of high flux plasma exposure on the properties of a sub-surface region of the commercially available pure tungsten fabricated following the ITER specification. TEM examination revealed the formation of a dense dislocation network and dislocation tangles, resulting in a strong increase in the dislocation density by at least one order of magnitude as compared to the bulk density. The plasma-induced dislocation microstructure vanishes within a depth of about 10{\textendash}15 μm from the top of the exposed surface. Surface hardness after the plasma exposure was characterized by NI and was found to increase significantly in the sub-surface region of 1.5{\textendash}3 μm. That was attributed to the resistance of the plasma-induced dislocation networks and deuterium-induced defects, whose presence within a depth of \~{}1 μm was unambiguously detected by the NRA measurements as well.
},
  year = {2017},
  journal = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  volume = {393},
  pages = {155-159},
  url = {http://pubman.mpdl.mpg.de/pubman/item/escidoc:2424027:3/component/escidoc:2471023/Dubinko_Effect.pdf},
  doi = {10.1016/j.nimb.2016.10.041},
  note = {Computer Simulation of Radiation effects in Solids Proceedings of the 13 COSIRES Loughborough, UK, June 19-24 2016},
  language = {eng},
}