High pulse number transient heat loads on beryllium

Spilker, B.; Linke, J.; Loewenhoff, Thorsten; Pintsuk, G.; Wirtz, M.

doi:10.1016/j.nme.2016.11.032

Cited by 7 publications

(1 citation statement)

References 14 publications

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“…Beryllium is the first wall in the fusion reactor [1,2] and was considered as a candidate material for ICF, which has the advantages of high density, low opacity, high melting point, and high thermal conductivity, [3,4] and it has a high ablation rate due to these advantages. It is more beneficial for implosion coupling efficiency and can suppress the growth of ablation instability in indirect-drive inertial confinement fusion.…”

Section: Introductionmentioning

confidence: 99%

Beryllium carbide as diffusion barrier against Cu: First-principles study*

2020

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Beryllium carbide is used in inertial confinement fusion (ICF) capsule ablation material due to its low atomic number, low opacity, and high melting point properties. We used the method of climbing image nudged elastic band (CINEB) to calculate the diffusion barrier of copper atom in the crystal of beryllium and beryllium carbide. The diffusion barrier of copper atom in crystal beryllium is only 0.79 eV, and the barrier in beryllium carbide is larger than 2.85 eV. The three structures of beryllium carbide: anti-fluorite Be2C, Be2C-I, and Be2C-III have a good blocking effect to the diffusion of copper atom. Among them, the Be2C-III structure has the highest diffusion barrier of 6.09 eV. Our research can provide useful help for studying Cu diffusion barrier materials.

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