Helium ion irradiation effects on neodymium and cerium co-doped Gd2Zr2O7 pyrochlore ceramic
来源期刊：JOURNAL OF RARE EARTHS2018年第4期
论文作者：Qijun Hu Junsen Zeng Lan Wang Xiaoyan Shu Dadong Shao Haibin Zhang Xirui Lu
文章页码：398 - 403
摘 要：This paper studies the helium ions irradiation effects on Nd and Ce co-doped Gd2 Zr2 O7 ceramics. where Nd replaces the Gd site and Ce replaces the Zr site respectively. A series of(Gd1-xNdx)2(Zr1-yCey)2 O7（0 ≤ x, y ≤ 1） ceramics were irradiated with a 500 keV He ions at room temperature at fluences ranging from 1 × 1015 to 1 × 1017 ions/cm2. The irradiated samples were characterized using GIXRD, Raman and SEM measurements. From the GIXRD and Raman observations, the results indicate that all the samples display a deficient fluorite structure after irradiation. The irradiation toleration increases with the irradiation depth increasing under experimental conditions, and Nd2 Ce2 O7 has the best irradiation stability in the(Gd1-xNdx)2(Zr1-yCey)2 O7（0≤ x. y≤1）. Based on SEM results, the irradiated samples are still relatively dense and uniform, and no second phase exists.
Qijun Hu1，Junsen Zeng1，Lan Wang2，Xiaoyan Shu2，Dadong Shao3，Haibin Zhang4，Xirui Lu2
1. School of Civil Engineering and Architecture,Southwest Petroleum University2. Fundamental Science on Nuclear Wastes and Environmental Safety Laboratory,Southwest University of Scienoe and Technology3. Institute of Plasma Physics,Chinese Academy of Sciences4. Institute of Nuclear Physics and Chemistry,China Academy of Engineering Physics
摘 要：This paper studies the helium ions irradiation effects on Nd and Ce co-doped Gd2 Zr2 O7 ceramics. where Nd replaces the Gd site and Ce replaces the Zr site respectively. A series of(Gd1-xNdx)2(Zr1-yCey)2 O7（0 ≤ x, y ≤ 1） ceramics were irradiated with a 500 keV He ions at room temperature at fluences ranging from 1 × 1015 to 1 × 1017 ions/cm2. The irradiated samples were characterized using GIXRD, Raman and SEM measurements. From the GIXRD and Raman observations, the results indicate that all the samples display a deficient fluorite structure after irradiation. The irradiation toleration increases with the irradiation depth increasing under experimental conditions, and Nd2 Ce2 O7 has the best irradiation stability in the(Gd1-xNdx)2(Zr1-yCey)2 O7（0≤ x. y≤1）. Based on SEM results, the irradiated samples are still relatively dense and uniform, and no second phase exists.
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