On ion implantation and damage effect in Li2TiO3 as a fusion breeder blanket: A technological approach for degradation testing
On ion implantation and damage effect in Li2TiO3 as a fusion breeder blanket: A technological approach for degradation testing
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DOI：
10.1016/j.fusengdes.2014.02.072
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发表时间：
2014-10-01
影响因子：
1.7
通讯作者：
Gonzalez, M.
中科院分区：
文献类型：
--
作者：
Carella, E.;Leon, M.;Gonzalez, M.
目前的工作是一种技术方法，建立测试技术能够评估两个锂嬗变产品的释放和表征的Li 2 TiO 3作为增殖材料的降解。在试图找到轻气体的脱气/释放温度，并研究其体扩散，核反应分析（NRA）被用于配置的He-3和D的深度分布的注入和损坏的样品作为退火温度的函数。利用显微拉曼光谱和共聚焦显微发光（CML）技术对γ射线和重离子（Ti 4+）辐照产生的缺陷进行了表征。考虑到微观结构（孔隙率和晶粒尺寸）的相关性，该研究得到了透射电子显微镜（TEM）观察和Hg孔隙率测量的支持。关于D-注入样品，结果表明在高于200摄氏度的温度下完全释放。另一方面，注入的He-3随着温度持续解吸，在700摄氏度下仍测得7-8%。(C)© 2014 Elsevier B. V.保留所有权利。
The present work is a technological approach to establish testing techniques able to evaluate the release of the two Li-transmutation products and characterize the degradation of Li2TiO3 as breeder material. In an attempt to find the outgassing/release temperature of light gases and to study its bulk diffusion, nuclear reaction analysis (NRA) was used for profiling the He-3 and D depth distributions of the as-implanted and damaged samples as a function of the annealing temperature. The defects generated by gamma-rays and heavy-ion (Ti4+) irradiation were characterized by microRaman spectroscopy and confocal microscopy luminescence (CML) techniques. Considering the relevance of the microstructure (porosity and grain size), the study was supported by transmission electron microscope (TEM) observations and Hg-porosimetry measurements. Concerning D-implanted samples, the results suggest the complete release at temperatures higher than 200 degrees C. On the other hand, the implanted He-3 desorbs continuously with temperature, a 7-8% still being measured at 700 degrees C. (C) 2014 Elsevier B.V. All rights reserved.