Swelling Effects of Pyrochlore Gd2Ti2O7 Induced by Ne Ion Irradiation

LI Yu-hong; XU Chun-ping

doi:10.11804/NuclPhysRev.28.03.321

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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 Gd₂Ti₂O₇Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321

Swelling Effects of Pyrochlore Gd₂Ti₂O₇Induced by Ne Ion Irradiation

doi: 10.11804/NuclPhysRev.28.03.321

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-09-20

Abstract

Polycrystalline pyrochlore Gd₂Ti₂O₇compounds 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.
- Gd₂Ti₂O₇,
- ion irradiation,
- GIXRD,
- swelling effect
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Swelling Effects of Pyrochlore Gd₂Ti₂O₇Induced by Ne Ion Irradiation

doi: 10.11804/NuclPhysRev.28.03.321

School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

Received Date: 1900-01-01
Rev Recd Date: 1900-01-01
Publish Date: 2011-09-20

Key words:

Abstract: Polycrystalline pyrochlore Gd₂Ti₂O₇compounds 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.

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 Gd₂Ti₂O₇Induced by Ne Ion Irradiation[J]. Nuclear Physics Review, 2011, 28(3): 321-325. doi: 10.11804/NuclPhysRev.28.03.321