Lattice expansion in ZrN and Dy0.3Zr0.7N irradiated by 200 MeV Xe ions
Lattice expansion in ZrN and Dy0.3Zr0.7N irradiated by 200 MeV Xe ions
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200 MeV Xe 离子辐照下 ZrN 和 Dy0.3Zr0.7N 的晶格膨胀
DOI：
10.15669/pnst.5.204
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
N. Ishikawa
中科院分区：
文献类型：
--
作者：
Seiya Takaki;M. Takano;N. Ishikawa
利用常规X射线衍射（XRD）分析方法研究了200 MeV重离子辐照下ZrN和Dy 0. 3 Zr 0. 7 N的晶格常数和非均匀应变，以获得氮化物燃料裂变碎片引起的微观结构演化的基础知识，这对于发展用于嬗变次锕系元素（MA）的惰性基质燃料具有重要意义。XRD测量结果表明，没有相变诱导的辐照发生，并表示增加的晶胞参数和积累的非均匀微观应变随着离子注量的增加。这些数据与一个单一的影响模型的损害积累。结果表明，在Zr N和Dy 0.3Zr 0.7N中形成了导致晶格膨胀和晶格畸变加剧的柱状缺陷。
Lattice parameter and heterogeneous strain in ZrN and Dy0.3Zr0.7N irradiated with 200 MeV Xe ions were examined by conventional X-ray diffraction (XRD) analysis to obtain fundamental knowledge on the microstructure evolution induced by fission fragments in nitride fuels, which is important for the development of inert matrix fuels for transmutation of minor actinides (MA). The XRD measurements revealed that no phase transformation induced by irradiation occurred and indicated an increase in the unit cell parameter and the accumulation of heterogeneous microstrain with increasing ion fluence. These data were fitted with a single-impact model of damage accumulation. It is indicated that cylindrical defects which induce increasing lattice expansion and lattice distortion are formed in ZrN and Dy0.3Zr0.7N.