Impact of high transient loads on beryllium damage

I B Kupriyanov, E V Basaleev,G N Nikolaev,L A Kurbatova,V L Podkovyrov, A D Muzichenko,A M Zhitlukhin,L N Khimchenko

Fusion Engineering（2013）

引用 3|浏览20

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摘要

Beryllium will be used as a plasma facing material for ITER first wall. This paper presents the results of recent experiments with Russian beryllium of TGP-56FW ITER grade on QSPA-Be plasma gun facility. The beryllium targets were exposed to up to 100 shots with pulse duration of 0.5 ms and average heat loads of 1.7 and 2.1 MJ/m2. After 10, 40 and 100 shots, the evolution of surface microstructure and cracks morphology and beryllium mass loss/gain under erosion process on the beryllium surface were studied as well as the erosion products.

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关键词

tokamak devices,fusion reactor safety,fusion reactor targets,plasma guns,plasma toroidal confinement,plasma-wall interactions,iter first wall,qspa-be plasma gun facility,russian beryllium,tgp-56fw iter grade,average heat loads,beryllium damage,beryllium mass gain,beryllium mass loss,beryllium surface,beryllium targets,cracks morphology,erosion process,erosion products,high transient loads,plasma facing material,pulse duration,surface microstructure evolution,beryllium,erosion,first wall,heat load,heating,plasmas

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