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Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究

李玉红 许春萍

李玉红, 许春萍. Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究[J]. 原子核物理评论, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
引用本文: 李玉红, 许春萍. Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究[J]. 原子核物理评论, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
LI Yu-hong, XU Chun-ping. Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
Citation: LI Yu-hong, XU Chun-ping. Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321

Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究

doi: 10.11804/NuclPhysRev.28.03.321

Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation

  • 摘要: 在液氮低温下用400 keV的Ne2+离子束对Gd2Ti2O7多晶烧绿石进行了辐照实验研究, 离子束辐照量范围为5×1014—1×1016ions/cm2。利用掠X射线衍射技术对样品辐照层的结构变化进行了分析表征, X射线的掠射角分别为γ=0.25°, 0.5°, 1°和3°。结果表明: 在该实验条件的离子束辐照下, Gd2Ti2O7辐照层会发生明显的体积肿胀效应, 体积肿胀程度随入射离子束辐照量的增大而增大; 在同一辐照量下, 辐照层的体积肿胀程度也随X射线入射角的增大而增大。当辐照量达到1×1016ions/cm2时, 辐照层发生非晶化相变。Polycrystalline pyrochlore Gd2Ti2O7 compounds were irradiated with 400 keV Ne2+ ions at cryogenic temperature (~77 K). The irradiation fluences was ranging from 5×1014 to 1×1016 ions/cm2, corresponding to a peak ballistic damage dose of ~0.16 to 3.3 displacements per atom . Irradiation\|induced structural evolution was examined using grazing incidence X\|ray diffraction (GIXRD) at angles from 0.25° to 3° degrees. It was found that the lattice parameter increases as a function of (1) X\|ray incident angle and (2) ion irradiation fluence, suggesting that the irradiated layer is volumetrically swelled compared with the underlying un\|irradiated substrate. At ion fluence of 1×1016 ions/cm2, the irradiation layer was found to be amorphous.
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出版历程
  • 收稿日期:  1900-01-01
  • 修回日期:  1900-01-01
  • 刊出日期:  2011-09-20

Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究

doi: 10.11804/NuclPhysRev.28.03.321

摘要: 在液氮低温下用400 keV的Ne2+离子束对Gd2Ti2O7多晶烧绿石进行了辐照实验研究, 离子束辐照量范围为5×1014—1×1016ions/cm2。利用掠X射线衍射技术对样品辐照层的结构变化进行了分析表征, X射线的掠射角分别为γ=0.25°, 0.5°, 1°和3°。结果表明: 在该实验条件的离子束辐照下, Gd2Ti2O7辐照层会发生明显的体积肿胀效应, 体积肿胀程度随入射离子束辐照量的增大而增大; 在同一辐照量下, 辐照层的体积肿胀程度也随X射线入射角的增大而增大。当辐照量达到1×1016ions/cm2时, 辐照层发生非晶化相变。Polycrystalline pyrochlore Gd2Ti2O7 compounds were irradiated with 400 keV Ne2+ ions at cryogenic temperature (~77 K). The irradiation fluences was ranging from 5×1014 to 1×1016 ions/cm2, corresponding to a peak ballistic damage dose of ~0.16 to 3.3 displacements per atom . Irradiation\|induced structural evolution was examined using grazing incidence X\|ray diffraction (GIXRD) at angles from 0.25° to 3° degrees. It was found that the lattice parameter increases as a function of (1) X\|ray incident angle and (2) ion irradiation fluence, suggesting that the irradiated layer is volumetrically swelled compared with the underlying un\|irradiated substrate. At ion fluence of 1×1016 ions/cm2, the irradiation layer was found to be amorphous.

English Abstract

李玉红, 许春萍. Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究[J]. 原子核物理评论, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
引用本文: 李玉红, 许春萍. Ne离子束辐照引起Gd2Ti2O7烧绿石体积肿胀效应研究[J]. 原子核物理评论, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
LI Yu-hong, XU Chun-ping. Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321
Citation: LI Yu-hong, XU Chun-ping. Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321

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