Abstract
We grew nanotendril “fuzz” on tungsten via plasma exposure and performed transmission Kikuchi diffraction (tKD) in scanning electron microscopy of isolated nanotendrils. 900 °C, 1023 He/m2sec, 4 × 1026 He/m2 exposure of tungsten produced a deep and fully developed nanotendril mat. tKD of isolated nanotendrils indicated that there was no preferred crystallographic direction oriented along the long axes of the tendrils, and the grain boundary character showed slightly preferential orientations. Tendril growth is sufficiently non-equilibrium to prevent any preference of growth direction to manifest measurably, and that new high-angle boundaries (with new grains and grain-growth axes) nucleate randomly along the tendrils during growth.
Original language | English |
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Pages (from-to) | 132-135 |
Number of pages | 4 |
Journal | Scripta Materialia |
Volume | 127 |
DOIs | |
State | Published - Jan 15 2017 |
Funding
CMP and KW supported by an Early Career Award, US Department of Energy, Office of Science, Fusion Energy Sciences under contract number DE-AC05-00OR22725 . RPD and MJB supported by DE-FG02-07ER54912. We thank Prof B. Wirth, Dr. X. Hu., and Dr. D. Leonard for constructive criticism and discussions.
Funders | Funder number |
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US Department of Energy | |
Office of Science | |
Fusion Energy Sciences | DE-AC05-00OR22725, DE-FG02-07ER54912 |
Keywords
- Fusion
- Fusion energy
- Plasma simulation
- Transmission Kikuchi diffraction
- Tungsten