Current status of nanostructured tungsten-based materials development
Current status of nanostructured tungsten-based materials development
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DOI：
10.1088/0031-8949/2014/t159/014032
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发表时间：
2014-04
期刊：
影响因子：
2.9
通讯作者：
H. Kurishita;S. Matsuo;H. Arakawa;T. Sakamoto;S. Kobayashi;K. Nakai;H. Okano;H. Watanabe;
中科院分区：
文献类型：
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作者：
H. Kurishita;S. Matsuo;H. Arakawa;T. Sakamoto;S. Kobayashi;K. Nakai;H. Okano;H. Watanabe;
纳米结构钨(W)基材料在高能中子和低能离子的联合辐照下作为面向等离子体的材料和部件具有许多优点。本文首先介绍了纳米结构增韧、细晶、再结晶W材料的研究进展。在东北大学我中心的辐射控制区安装了配备离子枪的热解吸谱装置，系统地研究了高能中子辐照引起的位移损伤对与钨基材料的纳米或微结构有关的氢同位素保留的影响。本文介绍了高能重离子辐照对不同微观结构的钨中氚存留的影响，并展望了中子辐照效应的前景。
Nanostructured tungsten (W)-based materials offer many advantages for use as plasma facing materials and components exposed to heavy thermal loads combined with irradiation with high-energy neutron and low-energy ion. This paper first presents the recent progress in nanostructured toughened, fine grained, recrystallized W materials. Thermal desorption spectrometry apparatus equipped with an ion gun has been installed in the radiation controlled area in our Center at Tohoku University to systematically investigate the effects of displacement damage due to high-energy neutron irradiation on hydrogen isotope retention in connection with the nano- or micro-structures in W-based materials. In this paper, the effects of high-energy heavy ion irradiation on deuterium retention in W with different microstructures are described as a preliminary work with the prospective view of neutron irradiation effects.