Abstract

The gas-cooled fast reactor (GFR) is one of six concepts for the Generation-IV nuclear energy system. The fuel for the GFR requires both a high heavy metal loading and the ability to withstand temperatures up to 1600°C during a loss of coolant accident. ZrC is among the few potential refractory ceramic materials with necessary properties to be considered as matrix materials for a dispersed carbide fuel. The radiation response of ZrC to high dose and temperature is a critical research need. This work investigated the microstructure of ZrC irradiated with 1 MeV Kr ions to doses of 10 and 30 dpa at 27°C and 10 and 70 dpa at 800°C with a damage rate approximately 3.0 × 10−3 dpa/s. No radiation-induced amorphization was found. A lattice expansion of approximately 7 % was observed for ZrC irradiated to 70 dpa at 800°C.

Issue Section:
Research Papers
Keywords:
ZrC, Kr ions, microstructure, irradiation, dislocation, lattice expansion

References

1.
Aigner
,
K.
,
Lengauer
,
W.
,
Rafaja
,
D.
, and
Ettmayer
,
P.
,
J. Alloys Compd.
 0925-8388 https://doi.org/10.1016/0925-8388(94)90828-1 
215
,
121
-
126
(
1994
).
Crossref
Search ADS
 
2.
Binary Alloy Phase Diagrams
, 2nd ed., edited by
T. B.
 
Massalaski
,
H.
 
Okamoto
,
P. R.
 
Subramanian
, and
L.
 
Kacprzak
,
ASM International
,
Materials Park, Ohio
(
1990
).
3.
Minato
,
K.
,
Ogawa
,
T.
,
Fukuda
,
K.
,
Sekino
,
H.
,
Kitagawa
,
I.
, and
Mita
,
N.
,
J. Nucl. Mater.
 0022-3115 
249
,
142
-
149
(
1997
).
Crossref
Search ADS
 
4.
Andrievskii
,
R.
, et al,
Izv. Akad. Nauk SSSR, Neorg. Mater.
 0002-337X 
14
,
680
-
683
(
1978
).
5.
Kovalchenko
,
M.
 and
Rogovoi
,
Y.
,
Izv. Akad. Nauk SSSR, Neorg. Mater.
 0002-337X 
9
, pp.
321
-
322
(
1973
).
6.
Ziegler
,
J. F.
,
Biersack
 
J. P.
 and
Littmark
,
U.
,
The Stopping and Range of Ions in Solid
,
Pergamon Press
,
New York
,
1996
.
7.
Keilholtz
,
G. W.
,
Moore
,
R. E.
, and
Osborne
,
M. F.
 
Nucl. Appl.
 
4
,
330
-
336
(
1968
).
8.
Pearson's Handbook of Crystallographic Data
, 2nd Edition, edited by
P.
 
Villars
 and
L. D.
 
Calvert
,
ASM International
,
Materials Park, Ohio
, pp. 2039 (
1991
).
9.
Li
,
J.
,
Liao
,
D.
,
Yip
,
S.
,
Najafabadi
,
R.
, and
Ecker
,
L.
,
J. Appl. Phys.
 0021-8979 https://doi.org/10.1063/1.1567819 
93
(
11
),
9072
-
9085
(
2003
).
Crossref
Search ADS
 
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