Evidence of radiation damage impact on material erosion in plasma environment
Evidence of radiation damage impact on material erosion in plasma environment
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DOI：
10.1016/j.jnucmat.2009.01.236
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发表时间：
2009-06
影响因子：
3.1
通讯作者：
B. Khripunov;A. Brukhanov;O. K. Chugunov;V. Gureev;V. S. Koidan;S. N. Kornienko;B. Kuteev;S. Latushkin;A. M. Muksunov;V. Petrov;A. Ryazanov;E. Semenov;V. Smirnov;V. Stolyarova;V. Unezhev
中科院分区：
文献类型：
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作者：
B. Khripunov;A. Brukhanov;O. K. Chugunov;V. Gureev;V. S. Koidan;S. N. Kornienko;B. Kuteev;S. Latushkin;A. M. Muksunov;V. Petrov;A. Ryazanov;E. Semenov;V. Smirnov;V. Stolyarova;V. Unezhev
聚变反应堆中面向等离子体的材料将受到等离子体通量和DT中子辐射的影响。已经启动了实验研究，旨在评估高水平辐射损伤和等离子体引起的侵蚀对这些材料的综合影响。在库尔恰托夫研究所的离子回旋加速器和 LENTA 等离子体模拟器上进行了复杂的建模研究。碳材料和钨经3-5MeV离子辐照可达到1-10dpa的辐射损伤。描述了辐照材料的特征。研究了辐照材料对能量密度为 1025ion/m2 的氘等离子体（100–250eV D+离子）的响应。观察到变形效应和表面微观结构的改变。侵蚀速率的评估表明辐射损伤材料的侵蚀增强。
Plasma facing materials in a fusion reactor will suffer from both plasma fluxes and DT-neutron irradiations. Experimental investigations have been initiated aiming at assessment of the combined effect of high-level radiation damage and plasma induced erosion on these materials. Complex modeling studies were performed on the ion cyclotron and LENTA plasma simulator at Kurchatov Institute. Carbon materials and tungsten have been irradiated with 3–5MeV ions to reach 1–10dpa of radiation damage. The features of irradiated materials are described. Irradiated materials response to deuterium plasma (100–250eV D+ions) at fluence 1025ion/m2was studied. Deformation effect and surface microstructure modification have been observed. Evaluation of erosion rate indicated erosion enhancement for radiation-damaged materials.