Single-ion tracks in Gd2Zr2-xTixO7 pyrochlores irradiated with swift heavy ions

被引：126
作者：
Lang, Maik [1 ,2 ]
Lian, Jie [3 ]
Zhang, Jiaming [1 ,2 ]
Zhang, Fuxiang [1 ,2 ]
Weber, William J. [4 ]
Trautmann, Christina [5 ]
Ewing, Rodney C. [1 ,2 ]
机构：
[1] Univ Michigan, Dept Geol Sci, Ann Arbor, MI 48109 USA
[2] Univ Michigan, Dept Mat Sci & Engn, Ann Arbor, MI 48109 USA
[3] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA
[4] Pacific NW Natl Lab, Richland, WA 99352 USA
[5] GSI Helmholtzzentrum Schwerionenforsch, D-64291 Darmstadt, Germany
来源：
PHYSICAL REVIEW B | 2009年 / 79卷 / 22期
关键词：
electron energy loss spectra; gadolinium compounds; ion beam effects; Raman spectra; transmission electron microscopy; xenon; X-ray diffraction; zirconium compounds; WASTE FORM; STRUCTURAL MODIFICATIONS; PHASE-TRANSFORMATION; BEAM IRRADIATION; PLASTIC-FLOW; PLUTONIUM; IMMOBILIZATION; DAMAGE; TRANSITION; STABILITY;
D O I：
10.1103/PhysRevB.79.224105
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Swift xenon ions (1.43 GeV) were used to systematically investigate the radiation response of pyrochlores in the Gd2Zr2-xTixO7 binary in the electronic energy loss regime. Ion-induced structural modifications were characterized by synchrotron x-ray diffraction, Raman spectroscopy, and transmission electron microscopy. The structure of ion tracks depends on the pyrochlore composition, and the damage cross section increases with the Ti content. In general, single ion tracks consist of an amorphous track core, surrounded by a crystalline, but disordered, defect-fluorite-structured shell. That is in turn surrounded by a defect-rich pyrochlore region. The decrease in the size of these different track zones, with increasing Zr content, is a result of the enhanced radiation stability of Zr-rich pyrochlore within individual swift heavy ion tracks.
引用
收藏
页数：9
相关论文
共 59 条
[1]   Cores and halos of uranium-ion tracks in LiF [J].
Abu Saleh, S ;
Eyal, Y .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 209 :113-117
[2]   Swift heavy ion induced formation of α-FeSi2 [J].
Assmann, W ;
Dobler, M ;
Avasthi, DK ;
Kruijer, S ;
Mieskes, HD ;
Nolte, H .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1998, 146 (1-4) :271-277
[3]   Heavy-ion irradiation effects in Gd2(Ti2-xZrx)O7 pyrochlores [J].
Begg, BD ;
Hess, NJ ;
McCready, DE ;
Thevuthasan, S ;
Weber, WJ .
JOURNAL OF NUCLEAR MATERIALS, 2001, 289 (1-2) :188-193
[4]   Heavy-ion irradiation effects on structures and acid dissolution of pyrochlores [J].
Begg, BD ;
Hess, NJ ;
Weber, WJ ;
Devanathan, R ;
Icenhower, JP ;
Thevuthasan, S ;
McGrail, BP .
JOURNAL OF NUCLEAR MATERIALS, 2001, 288 (2-3) :208-216
[5]   Study of the damage produced in CaF2 by swift heavy ion irradiation [J].
Boccanfuso, M ;
Benyagoub, A ;
Schwartz, K ;
Trautmann, C ;
Toulemonde, M .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2002, 191 :301-305
[6]   SYSTEMATICS OF THE PYROCHLORE STRUCTURE TYPE, IDEAL A2B2X6Y [J].
CHAKOUMAKOS, BC .
JOURNAL OF SOLID STATE CHEMISTRY, 1984, 53 (01) :120-129
[7]  
CHEN J, 1998, MATER RES SOC S P, V713, P501
[8]   STRUCTURAL MODIFICATIONS OF YTTRIUM-IRON-GARNET AFTER HIGH-ENERGY HEAVY-ION IRRADIATIONS [J].
COSTANTINI, JM ;
RAVEL, F ;
BRISARD, F ;
CAPUT, M ;
CLUZEAU, C .
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 80-1 :1249-1254
[9]   ALPHA-]OMEGA PHASE-TRANSFORMATION INDUCED IN TITANIUM DURING ION IRRADIATIONS IN THE ELECTRONIC SLOWING-DOWN REGIME [J].
DAMMAK, H ;
BARBU, A ;
DUNLOP, A ;
LESUEUR, D ;
LORENZELLI, N .
PHILOSOPHICAL MAGAZINE LETTERS, 1993, 67 (04) :253-259
[10]   Glass matrix/pyrochlore phase composites for nuclear wastes encapsulation [J].
Digeos, AA ;
Valdez, JA ;
Sickafus, KE ;
Atiq, S ;
Grimes, RW ;
Boccaccini, AR .
JOURNAL OF MATERIALS SCIENCE, 2003, 38 (08) :1597-1604
123456