Probing structural disorder in zircon by electron backscatter diffraction (EBSD): Radiation damage and Kikuchi pattern

被引：0

作者：

Beirau, Tobias ^{[1
]}

Kilian, Ruediger ^{[1
,2
]}

Stipp, Michael ^{[2
]}

Ewing, Rodney C. ^{[3
,4
]}

机构：

[1] Martin Luther Univ Halle Wittenberg, Inst Geosci & Geog, Mineral Geochem, D-06120 Halle, Germany

[2] Martin Luther Univ Halle Wittenberg, Inst Geosci & Geog, Geodynam, D-06120 Halle, Germany

[3] Stanford Univ, Dept Geol Sci, Stanford, CA 94305 USA

[4] Stanford Univ, Ctr Int Secur & Cooperat, Stanford, CA 94305 USA

来源：

JOURNAL OF NUCLEAR MATERIALS | 2023年 / 581卷

关键词：

EBSD; Radiation damage; Zircon; Kikuchi pattern; Actinide waste form; PHASE;

D O I：

10.1016/j.jnucmat.2023.154440

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Electron backscatter diffraction (EBSD) was employed to probe the structural order of a zoned radiation -damaged zircon (ZrSiO4) on the sub-micron scale. The amorphous fraction of the growth-zones is in the range of-45-80%, due to variations in the amount of incorporated uranium and thorium (-0.22- 0.43 wt% UO2 and-0.02-0.08 wt% ThO2) and the resulting alpha-decay events over time. The obtained Kikuchi patterns' band contrast (bc) and band slope (bs) are indicative of the degree of atomic-scale or-der. The excellent correlation of both parameters with the evolution of the elastic modulus validates the methods reliability.(c) 2023 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license ( http://creativecommons.org/licenses/by/4.0/ )

引用

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