Uranium oxidation kinetics monitored by in-situ X-ray diffraction

被引：15

作者：

Zalkind, S. ^{[1
]}

Rafailov, G. ^{[1
]}

Halevy, I. ^{[1
]}

Livneh, T. ^{[1
]}

Rubin, A. ^{[1
]}

Maimon, H. ^{[1
]}

Schweke, D. ^{[1
]}

机构：

[1] Nucl Res Ctr Negev, POB 9001, IL-84190 Beer Sheva, Israel

来源：

JOURNAL OF NUCLEAR MATERIALS | 2017年 / 485卷

关键词：

DIOXIDE; UO2; OXYGEN; OXIDE; METAL;

D O I：

10.1016/j.jnucmat.2016.12.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The oxidation kinetics of U-0.1 wt%Cr at oxygen pressures of 150 Torr and the temperature range of 90-150 degrees C was studied by means of in-situ X-ray diffraction (XRD). A "breakaway" in the oxidation kinetics is found at -0.25 gm, turning from a parabolic to a linear rate law. At the initial stage of oxidation the growth plane of UO2(111) is the prominent one. As the oxide thickens, the growth rate of UO2(220) plane increases and both planes grow concurrently. The activation energies obtained for the oxide growth are Q(parabolic) = 17.5 kcal/mol and Q(linear) = 19 kcal/mol. Enhanced oxidation around uranium carbide (UC) inclusions is clearly observed by scanning electron microscopy (SEM). (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：202 / 206

页数：5

共 50 条

[1] Oxidation Kinetics of Zirconium Examined by In Situ X-ray Diffraction
Lakshmi, N.
Yoo, H. -I.
Martin, M.
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2013, 160 (03) : C136 - C141
[2] In-situ X-ray diffraction study on the decomposition kinetics in bearing steels
Jimenez-Melero, Enrique
van Dijk, Niels
Blonde, Romain
Honkimaki, Veijo
[J]. ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 2011, 67 : C438 - C438
[3] In-situ x-ray diffraction study of the crystallization kinetics of mesoporous titania
Kirsch, BL
Riley, AE
Richman, EK
Tolbert, SH
[J]. ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2004, 227 : U1543 - U1543
[4] In-situ X-ray diffraction study of the crystallization kinetics of mesoporous titania films
Kirsch, BL
Richman, EK
Riley, AE
Tolbert, SH
[J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (34): : 12698 - 12706
[5] Interface Reaction between Aluminium and Uranium at High Temperature Using in-situ X-ray Diffraction
Zhang Yanzhi
Xie Weihua
Guan Weijun
Chen Lin
Wang Xiaolin
[J]. RARE METAL MATERIALS AND ENGINEERING, 2017, 46 (09) : 2465 - 2469
[6] Interface Reaction between Aluminium and Uranium at High Temperature Using in-situ X-ray Diffraction
[J]. Zhang, Yanzhi (yanzhizh@163.com), 1600, Science Press (46):
[7] In-situ investigation of bulk nucleation by X-ray diffraction
Larsen, AW
Gundlach, C
Poulsen, HF
Margulies, L
Xing, Q
Jensen, DJ
[J]. RECRYSTALLIZATION AND GRAIN GROWTH, PTS 1 AND 2, 2004, 467-470 : 81 - 86
[8] IN-SITU X-RAY DIFFRACTION IMAGING OF POLYCRYSTALLINE MATERIALS
Wroblewski, T.
[J]. ACTA CRYSTALLOGRAPHICA A-FOUNDATION AND ADVANCES, 1999, 55 : 63 - 63
[9] In-situ X-ray diffraction snapshotting: Determination of the kinetics of a photodimerization within a single crystal
Hu, Fei-Long
Wang, Shu-Long
Lang, Jian-Ping
Abrahams, Brendan F.
[J]. SCIENTIFIC REPORTS, 2014, 4
[10] In-situ mechanical testing during X-ray diffraction
Van Swygenhoven, Helena
Van Petegem, Steven
[J]. MATERIALS CHARACTERIZATION, 2013, 78 : 47 - 59

← 1 2 3 4 5 →