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Studies of irradiated zircaloy fuel sheathing using XPS

Abstract

The preliminary results reported here support the hypothesis that CANLUB graphite coating reduces the rate at which oxygen can react with fuel sheathing. X-ray photoelectron spectroscopic (XPS) characterization of Zircaloy sheathing obtained from extended-burnup Bruce-type elements (BDL-406-XY (555 MW.h/kgU) and BDL-406-AAH (731 MW.h/kgU)) irradiated in NRU indicates that CANLUB may reduce fuel sheath oxidation, and hence that fission-liberated oxygen may remain in the fuel. Chemical shifts in the Zr 3d spectra suggest that a stoichiometric (ZrO{sub 2}) oxide film was formed only on Zircaloy in direct contact with fuel. Particulate fuel adhering to the sheath was also determined to be systematically more oxidized on surfaces with CANLUB than on those without it. The unique association of tin on sheathing specimens with the non-CANLUB-coated specimens might also suggest that the tin had segregated from the sheathing. It must be emphasized that further experiments are required to better define the effect of CANLUB on fuel oxidation. (author). 14 refs., 1 tab., 3 figs.
Authors:
Chan, P K; Irving, K G; [1]  Hocking, W H; Duclos, A M; Gerwing, A F [2] 
  1. Atomic Energy of Canada Ltd., Chalk River, ON (Canada)
  2. Atomic Energy of Canada Ltd., Pinawa, MB (Canada). Whiteshell Labs.
Publication Date:
Dec 31, 1995
Product Type:
Conference
Report Number:
INIS-CA-0053; CONF-950623-
Reference Number:
SCA: 360105; 210400; PA: AIX-28:071876; EDB-97:144679; SN: 97001878005
Resource Relation:
Conference: 35. annual conference of the Canadian Nuclear Association and 16th annual conference of the Canadian Nuclear Society, Saskatoon (Canada), 4-7 Jun 1995; Other Information: PBD: 1995; Related Information: Is Part Of CNS proceedings of the 16. annual conference, volume I and II; Wight, A.L.; Loewer, R. [eds.]; PB: [2 v. ] p.
Subject:
36 MATERIALS SCIENCE; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; CANDU TYPE REACTORS; FUEL-CLADDING INTERACTIONS; FUEL CANS; PHOTOELECTRON SPECTROSCOPY; POST-IRRADIATION EXAMINATION; GRAPHITE; OXIDATION; PROTECTIVE COATINGS; ZIRCALOY 4
OSTI ID:
545483
Research Organizations:
Canadian Nuclear Society, Toronto, ON (Canada)
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Other: ON: DE98603788; TRN: CA9700821071876
Availability:
INIS; OSTI as DE98603788
Submitting Site:
INIS
Size:
pp. [10]
Announcement Date:

Citation Formats

Chan, P K, Irving, K G, Hocking, W H, Duclos, A M, and Gerwing, A F. Studies of irradiated zircaloy fuel sheathing using XPS. Canada: N. p., 1995. Web.
Chan, P K, Irving, K G, Hocking, W H, Duclos, A M, & Gerwing, A F. Studies of irradiated zircaloy fuel sheathing using XPS. Canada.
Chan, P K, Irving, K G, Hocking, W H, Duclos, A M, and Gerwing, A F. 1995. "Studies of irradiated zircaloy fuel sheathing using XPS." Canada.
@misc{etde_545483,
title = {Studies of irradiated zircaloy fuel sheathing using XPS}
author = {Chan, P K, Irving, K G, Hocking, W H, Duclos, A M, and Gerwing, A F}
abstractNote = {The preliminary results reported here support the hypothesis that CANLUB graphite coating reduces the rate at which oxygen can react with fuel sheathing. X-ray photoelectron spectroscopic (XPS) characterization of Zircaloy sheathing obtained from extended-burnup Bruce-type elements (BDL-406-XY (555 MW.h/kgU) and BDL-406-AAH (731 MW.h/kgU)) irradiated in NRU indicates that CANLUB may reduce fuel sheath oxidation, and hence that fission-liberated oxygen may remain in the fuel. Chemical shifts in the Zr 3d spectra suggest that a stoichiometric (ZrO{sub 2}) oxide film was formed only on Zircaloy in direct contact with fuel. Particulate fuel adhering to the sheath was also determined to be systematically more oxidized on surfaces with CANLUB than on those without it. The unique association of tin on sheathing specimens with the non-CANLUB-coated specimens might also suggest that the tin had segregated from the sheathing. It must be emphasized that further experiments are required to better define the effect of CANLUB on fuel oxidation. (author). 14 refs., 1 tab., 3 figs.}
place = {Canada}
year = {1995}
month = {Dec}
}