Surface analyses of cesium hydroxide chemisorbed onto type 304 stainless steel

被引：27

作者：

Di Lemma, F. G. ^{[1
]}

Nakajima, K. ^{[1
]}

Yamashita, S. ^{[1
]}

Osaka, M. ^{[1
]}

机构：

[1] Japan Atom Energy Agcy, Nucl Sci & Engn Ctr, LWR Key Technol Dev Div, Dev Grp LWR Adv Technol, Tokai, Ibaraki, Japan

来源：

NUCLEAR ENGINEERING AND DESIGN | 2016年 / 305卷

关键词：

HIGH-TEMPERATURE; STAINLESS-STEEL; PRIMARY CIRCUIT; OXIDE-FILM; CORROSION; BEHAVIOR; REACTOR; WATER;

D O I：

10.1016/j.nucengdes.2016.06.023

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Chemisorption is of main importance during a Severe Accident (SA) at a light water reactor, as it can influence fission product retention in the reactor vessel. Information on the distribution, composition and properties of such deposits can influence the decommissioning practice after a SA, and could be applied, for example, for the decommissioning of the Fukushima Daiichi Nuclear Power Plant. Moreover such information can enhance the description of the chemisorption models applied in SA codes, consequently improving the source term assessment. This paper will present the results obtained from CsOH chemisorption experiments onto stainless steel samples, used as simulants of reactor structural materials. The samples post-analyses showed that CsOH will absorb onto the surface, reacting preferentially with Si impurities and forming a newly detected compound, CsFeSiO4. From our results, it can be inferred that Si content in structural materials can determine the amount of radioactive Cs deposited and potentially retained on the reactor vessel after a SA. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：411 / 420

页数：10

共 23 条

[1]

Alekseeva Z.D., 1966, ZH NEORG KHIM, V11, P1171

[2] SURFACE STUDIES OF THE INTERACTION OF CESIUM HYDROXIDE VAPOR WITH 304 STAINLESS-STEEL [J].

ALLEN, GC ;

BOWSHER, BR ;

DICKINSON, S ;

FOTIOS, GM ;

NICHOLS, AL ;

WILD, RK .

OXIDATION OF METALS, 1987, 28 (1-2) :33-59

[3] THERMO-CALC & DICTRA, computational tools for materials science [J].

Andersson, JO ;

Helander, T ;

Höglund, LH ;

Shi, PF ;

Sundman, B .

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY, 2002, 26 (02) :273-312

[4]

Baston V, 1985, P AM NUCL SOC WINT M, P223

[5]

Beard A.M., 1990, 12844EN EUR

[6] RIETVELD REFINEMENT OF THE STRUCTURES OF DRY-SYNTHESIZED MFEIIISI2O6 LEUCITES (M=K, RB, CS) BY SYNCHROTRON X-RAY-POWDER DIFFRACTION [J].

BELL, AMT ;

HENDERSON, CMB .

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS, 1994, 50 :1531-1536

[7]

Bonneville H., 2015, P NURETH 16 INT TOP

[8] Revaporisation of fission product deposits in the primary circuit and its impact on accident source term [J].

Bottomley, P. D. W. ;

Knebel, K. ;

Van Winckel, S. ;

Haste, T. ;

Souvi, S. M. O. ;

Auvinen, A. ;

Kalilainen, J. ;

Karkela, T. .

ANNALS OF NUCLEAR ENERGY, 2014, 74 :208-223

[9] FISSION-PRODUCT CHEMISTRY AND AEROSOL BEHAVIOR IN THE PRIMARY CIRCUIT OF A PRESSURIZED WATER-REACTOR UNDER SEVERE ACCIDENT CONDITIONS [J].

BOWSHER, BR .

PROGRESS IN NUCLEAR ENERGY, 1987, 20 (03) :199-233

[10]

Devell S.A.H., 1994, NEACSNIR9428

← 1 2 3 →