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Order-to-disorder transformation in δ-phase Sc4Zr3O12 induced by light ion irradiation

  • Jian Zhang (a1), Yongqiang Wang, Ming Tang, Jonghan Won, James A. Valdez and Kurt E. Sickafus (a2)...


Polycrystalline δ-phase Sc4Zr3O12 was irradiated with 200 keV Ne+ ions at cryogenic temperature to fluences ranging from 2 × 1018 to 1 × 1021 Ne/m2. Irradiation-induced structural evolution was examined by using grazing incidence x-ray diffraction and cross-sectional transmission electron microscopy. An order-to-disorder (O-D) crystal structure transformation (from an ordered δ-phase to a disordered, fluorite phase) was observed to initiate by a fluence of 2 × 1018 Ne/m2, corresponding to a peak ballistic damage dose of ∼0.075 displacements per atom. This displacement damage dose is much lower than the O-D transformation dose threshold found in previous heavy ion irradiation experiments on δ-Sc4Zr3O12 [J.A. Valdez et al., Nucl. Instrum. Methods B250, 148 (2006); K.E. Sickafus et al., Nat. Mater.6, 217 (2007)]. In this study, we contrast the O-D transformation efficiency of the light Ne ions used in these experiments, to the heavy (Kr) ions used previously, and interpret the differences in terms of enhanced damage efficiency for light ions (greater fraction of surviving defects per defect produced). To better quantify this surviving defect phenomenon, we also present new, additional ion irradiation results on δ-Sc4Zr3O12, obtained from 300 keV Kr2+ and 100 keV He+ ion irradiation experiments.


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1.Degueldre, C., Pouchon, M., Doebeli, M., Sickafus, K.E., Hojou, K., Ledergerber, G., Abolhassani-Dadras, S.Behaviour of implanted xenon in yttria-stabilised zirconia as inert matrix of a nuclear fuel. J. Nucl. Mater. 289, 115 (2001)
2.Degueldre, C., Paratte, J-M.Basic properties of a zirconia-based fuel material for light water reactors. Nucl. Technol. 123, 21 (1998)
3.Weber, W.J., Ewing, R.C., Catlow, C.R.A., de la Rubia, T. Diaz, Hobbs, L.W., Kinoshita, C., Matzke, Hj., Motta, A.T., Nastasi, M., Salje, E.K.H., Vance, E.R., Zinkle, S.J.Radiation effects in crystalline ceramics for the immobilization of high-level nuclear waste and plutonium. J. Mater. Res. 13, 1434 (1998)
4.Wang, S.X., Begg, B.D., Wang, L.M., Ewing, R.C., Weber, W.J., Godivan Kutty, K.V.Radiation stability of gadolinium zirconate: A waste form for plutonium disposition. J. Mater. Res. 14, 4470 (1999)
5.Sickafus, K.E., Minervini, L., Grimes, R.W., Valdez, J.A., Ishimaru, M., Li, F., McClellan, K.J., Hartmann, T.Radiation tolerance of complex oxides. Science 289, 748 (2000)
6.Sickafus, K.E., Grimes, R.W., Valdez, J.A., Cleave, A.R., Tang, M., Ishimaru, M., Corish, S.M., Stanek, C.R., Uberuaga, B.P.Radiation-induced amorphization resistance and radiation tolerance in structurally related oxides. Nat. Mater. 6, 217 (2007)
7.Valdez, J.A., Tang, M., Sickafus, K.E.Radiation damage effects in delta-Sc4Zr3O12 irradiated with Kr2+ ions under cryogenic conditions. Nucl. Instrum. Methods B 250, 148 (2006)
8.Rossell, H.J.Crystal-structures of some fluorite-related M7O12 compounds. J. Solid State Chem. 19, 103 (1976)
9.Ziegler, J.F., Biersack, J.P., Littmark, U.The Stopping and Range of Ions in Solids (Pergamon Press, New York 1985)
10.Guinier, A.X-Ray Diffraction In Crystals, Imperfect Crystals and Amorphous Bodies (Dover Publications, Inc, New York 1994)
11.Lim, G., Parrish, W., Ortiz, C., Bellotto, M., Hart, M.Grazing incidence synchrotron x-ray diffraction method for analyzing thin films. J. Mater. Res. 2, 471 (1987)
12.Dosch, H.Evanescent absorption in kinematic surface Bragg diffraction. Phys. Rev. B: Condens. Matter 35, 2137 (1987)
13.Simeone, D., Bechade, J.L., Gosset, D., Chevarier, A., Daniel, P., Pilliaire, H., Baldinozzi, G.Investigation on the zirconia phase transition under irradiation. J. Nucl. Mater. 281, 171 (2000)
14.Rafaja, D., Valvoda, V., Vaclav, A., Perry, J., Treglio, J.R.Depth profile of residual stress in metal-ion implanted TiN coatings. Surf. Coat. Technol. 92, 135 (1997)
15.Sickafus, K.E., Grimes, R.W., Corish, S.M., Cleave, A.R., Stanek, C.R., Uberuaga, B.P., Valdez, J.A.Layered Atom Arrangements in Complex Materials Los Alamos Series Report # LA-14205 (2006)
16.Red'ko, V.P., Lopato, L.M.Crystalline structure of M4Zr3O12 and M4Hf3O12 compounds (M-rare earth). Neorg. Mater. 27, 1905 (1991)
17.Thornber, M.R., Bevan, D.J.M., Graham, J.Mixed oxides of type MO2(fluorite)-M2O3.3. Crystal structures of intermediate phases ZR5SC2O13 and ZR3SC4O12. Acta Crystallogr., Sect. B: Struct. Sci. 24, 1183 (1968)
18.Lopato, L.M., Red'ko, V.P., Gerasimyuk, G.I., Shevchenko, A.V.Synthesis and properties of M4Zr3O12 and M4Hf3O12 compounds (M-rare earth). Neorg. Mater. 27, 1718 (1991)
19.Phase Diagrams for Zirconium and Zirconia Systems edited by H.M. Ondik and H.F. McMurdie (The American Ceramic Society, Westerville, OH 1998)
20.Zinkle, S.J.Microstructure of ion-irradiated ceramic insulators. Nucl. Instrum. Methods Phys. Res., Sect. B 91, 234 (1994)
21.Zinkle, S.J.Effect of irradiation spectrum on the microstructural evolution in ceramic insulators. J. Nucl. Mater. 219, 113 (1995)
22.Zinkle, S.J.Effect of irradiation spectrum on the microstructure of ion-irradiated Al2O3Microstructure of Irradiated Materials edited by I.M. Robertson L.E. Rehn S.J. Zinkle and W.J. Phythian (Mater. Res. Soc. Symp. Proc. 373, Pittsburgh, PA 1995)287
23.Zinkle, S.J.Irradiation spectrum and ionization-induced diffusion effects in ceramicsMicrostructure Evolution During Irradiation edited by I.M. Robertson G.S. Was L.W. Hobbs and T. Diaz de la Rubia (Mater. Res. Soc. Symp. Proc. 439, Warrendale, PA 1997)667
24.Lindhard, J., Scharff, M., Schiott, H.E.Range concepts and heavy ion ranges. Mat. Fys. Medd. Dan Vid. Selsk. 33, 3 (1963)
25.Averback, R.S., Benedek, R., Merkle, K.L.Ion-irradiation studies of the damage function of copper and silver. Phys. Rev. B 18, 4156 (1978)
26.Averback, R.S.Atomic displacement processes in irradiated metals. J. Nucl. Mater. 216, 49 (1994)
27.Weber, W.J.Alpha-irradiation damage in CeO2, UO2 and PuO2. Radiat. Eff. Defects Solids 83, 145 (1984)
28.Weber, W.J., Eby, R.K., Ewing, R.C.Accumulation of structural defects in ion-irradiated Ca2Nd8(SiO4)6O2. J. Mater. Res. 6, 1334 (1991)



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