AMORPHIZATION IN GD2TI2O7 AND CAZRTI2O7 IRRADIATED WITH 3 MEV ARGON IONS

被引：31

作者：

WEBER, WJ

HESS, NJ

MAUPIN, GD

机构：

[1] Pacific Northwest Laboratory, Richland, WA 99352

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1992年 / 65卷 / 1-4期

关键词：

D O I：

10.1016/0168-583X(92)95021-I

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Irradiation of Gd2Ti2O7 and CaZrTi2O7 with 3 MeV Ar+ ions results in the simultaneous expansion of the unit-cell volume and radiation-induced amorphization. The damage cross sections for amorphization, which were determined by X-ray diffraction, are 0.023 nm2 and 0.014 nm2, respectively. These damage cross sections are relatively low and suggest some inherent resistance of these structures to amorphization, in agreement with previous studies. Transmission electron microscopy and electron diffraction confirmed the amorphous character of both materials at high fluences. Raman spectroscopy indicated a decrease in scattered intensity with ion fluence for the Raman-active vibrational modes of Gd2Ti2O7 and CaZrTi2O7. In the case of Gd2Ti2O7, increases in both linewidth and wavenumber with ion fluence also were observed.

引用

页码：102 / 106

页数：5

共 25 条

[11] DAMAGE CROSS-SECTIONS OF HEAVY-IONS IN CRYSTAL-STRUCTURES [J].

KARIORIS, FG ;

GOWDA, KA ;

CARTZ, L ;

LABBE, JC .

JOURNAL OF NUCLEAR MATERIALS, 1982, 108 (1-2) :748-750

[12] HEAVY-ION BOMBARDMENT OF MONOCLINIC THSIO4, THO2 AND MONAZITE [J].

KARIORIS, FG ;

GOWDA, KA ;

CARTZ, L .

RADIATION EFFECTS LETTERS, 1981, 58 (1-2) :1-3

[13] THE DISPLACEMENT OF ATOMS IN SOLIDS BY RADIATION [J].

KINCHIN, GH ;

PEASE, RS .

REPORTS ON PROGRESS IN PHYSICS, 1955, 18 :1-51

[14] Alpha-recoil damage in zirconolite (CaZrTi2O7) [J].

Lumpkin, G. R. ;

Ewing, R. C. ;

Chakoumakos, B. C. ;

Greegor, R. B. ;

Lytle, F. W. ;

Foltyn, E. M. ;

Clinard, F. W., Jr. ;

Boatner, L. A. ;

Abraham, M. M. .

JOURNAL OF MATERIALS RESEARCH, 1986, 1 (04) :564-576

[15]

LUMPKIN GR, 1988, PHYS CHEM MINER, V16, P2

[16] PHASE-TRANSITIONS AMONG THE CAGEO3 POLYMORPHS (WOLLASTONITE, GARNET, AND PEROVSKITE STRUCTURES) - STUDIES BY HIGH-PRESSURE SYNTHESIS, HIGH-TEMPERATURE CALORIMETRY, AND VIBRATIONAL SPECTROSCOPY AND CALCULATION [J].

ROSS, NL ;

AKAOGI, M ;

NAVROTSKY, A ;

SUSAKI, JI ;

MCMILLAN, P .

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH AND PLANETS, 1986, 91 (B5) :4685-4696

[17] ALPHA-RECOIL DAMAGE IN NATURAL ZIRCONOLITE AND PEROVSKITE [J].

SINCLAIR, W ;

RINGWOOD, AE .

GEOCHEMICAL JOURNAL, 1981, 15 (05) :229-243

[18] RADIATION-DAMAGE IN NUCLEAR WASTE CERAMICS [J].

TURCOTTE, RP ;

WALD, JW ;

ROBERTS, FP ;

RUSIN, JM ;

LUTZE, W .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1982, 65 (12) :589-593

[19] X-RAY-DIFFRACTION AND LEACHING OF CSALSI5O12 AND CSZR2(PO4)3 IRRADIATED BY ARGON (3-MEV) IONS [J].

VANCE, ER ;

CARTZ, L ;

KARIORIS, FG .

JOURNAL OF MATERIALS SCIENCE, 1984, 19 (09) :2943-2947

[20]

Wald J. W., 1982, Scientific Basis for Nuclear Waste Management V. Proceedings of the Materials Research Society Fifth International Symposium on the Scientific Basis for Nuclear Waste, P369

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