@article{8049,
  author = {G. M. Wright and G. G. van Eden and L. A. Kesler and G. De Temmerman and D. G. Whyte and K.B. Woller},
  title = {Characterizing the recovery of a solid surface after tungsten nano-tendril formation},
  abstract = {Recovery of a flat tungsten surface from a nano-tendril surface is attempted through three techniques; a mechanical wipe, a 1673 K annealing, and laser-induced thermal transients. Results were determined through SEM imaging and elastic recoil detection to assess the helium content in the surface. The mechanical wipe leaves a ∼0.5 μm deep layer of nano-tendrils on the surface post-wipe regardless of the initial nano-tendril layer depth. Laser-induced thermal transients only significantly impact the surface morphology at heat loads of 35.2 MJ/m2 s1/2 or above, however a fully flat or recovered surface was not achieved for 100 transients at this heat load despite reducing the helium content by a factor of ∼7. A 1673 K annealing removes all detectable levels of helium but sub-surface voids/bubbles remain intact. The surface is recovered to a nearly flat state with only some remnants of nano-tendrils re-integrating into the surface remaining.
},
  year = {2015},
  journal = {Journal of Nuclear Materials},
  volume = {463},
  pages = {294 - 298},
  doi = {10.1016/j.jnucmat.2014.11.083},
  note = {PLASMA-SURFACE İNTERACTIONS\} 21 Proceedings of the 21st International Conference on Plasma-Surface Interactions in Controlled Fusion Devices Kanazawa, Japan May 26-30, 2014},
  language = {eng},
}