Journal
JOURNAL OF NUCLEAR MATERIALS
Volume 484, Issue -, Pages 382-385Publisher
ELSEVIER
DOI: 10.1016/j.jnucmat.2016.11.029
Keywords
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Funding
- National Magnetic Confinement Fusion Science Program of China [2013GB109004, 2014GB117000]
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Transient thermoreflectance method was applied on the thermal conductivity measurement of the surface damaged layer of He-implanted tungsten. Uniform damages tungsten surface layer was produced by multi-energy He-ion implantation with thickness of 450 nm. Result shows that the thermal conductivity is reduced by 90%. This technique was further applied on sample with holes on the surface, which was produced by the He-implanted at 2953 K. The thermal conductivity decreases to 3% from the bulk value. (C) 2016 Elsevier B.V. All rights reserved.
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