Research on model of fission gas bubble growth based on Oswald ripening mechanism

Chongsheng Long; Yu Zhang; Hongsheng Chen; Hongxing Xiao; Tianguo Wei; Yi Zhao

doi:10.13832/j.jnpe.2016.05.0043

Research on model of fission gas bubble growth based on Oswald ripening mechanism

Chongsheng Long
, Yu Zhang
, Hongsheng Chen
, Hongxing Xiao
, Tianguo Wei
, Yi Zhao

Nuclear Power Institute of China

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Based on the Ostwald ripening process, a mechanistic model for the fission gas bubble growth has been proposed in this paper. Taking U-Zr alloy and UO₂ ceramic fuel as samples, the variation of FGB porosity and mean bubble size with the burn-up at different irradiation temperature and external restraint have been investigated in detail. For ceramic UO₂, the porosity increase rate with the burn-up at 700℃ is 25% faster than that at 400℃. The external restraint impedes the growth of FGB, but it is not very significant. The porosity and mean bubble size in U-Zr alloy for the same irradiation parameters are much greater than that in the ceramic UO₂ because the plastic deformation takes place very easy and quickly for U-Zr alloy during irradiation.

Original language	English
Pages (from-to)	43-45
Number of pages	3
Journal	Hedongli Gongcheng/Nuclear Power Engineering
Volume	37
Issue number	5
DOIs	https://doi.org/10.13832/j.jnpe.2016.05.0043
State	Published - 15 Oct 2016
Externally published	Yes

Keywords

Fission gas bubble
Growth
Mechanical model
Oswald ripening

Access to Document

10.13832/j.jnpe.2016.05.0043

Cite this

@article{bcb6ec6861c94d8c8ae8aba1a3aee9f7,

title = "Research on model of fission gas bubble growth based on Oswald ripening mechanism",

abstract = "Based on the Ostwald ripening process, a mechanistic model for the fission gas bubble growth has been proposed in this paper. Taking U-Zr alloy and UO2 ceramic fuel as samples, the variation of FGB porosity and mean bubble size with the burn-up at different irradiation temperature and external restraint have been investigated in detail. For ceramic UO2, the porosity increase rate with the burn-up at 700℃ is 25\% faster than that at 400℃. The external restraint impedes the growth of FGB, but it is not very significant. The porosity and mean bubble size in U-Zr alloy for the same irradiation parameters are much greater than that in the ceramic UO2 because the plastic deformation takes place very easy and quickly for U-Zr alloy during irradiation.",

keywords = "Fission gas bubble, Growth, Mechanical model, Oswald ripening",

author = "Chongsheng Long and Yu Zhang and Hongsheng Chen and Hongxing Xiao and Tianguo Wei and Yi Zhao",

year = "2016",

month = oct,

day = "15",

doi = "10.13832/j.jnpe.2016.05.0043",

language = "英语",

volume = "37",

pages = "43--45",

journal = "Hedongli Gongcheng/Nuclear Power Engineering",

issn = "0258-0926",

publisher = "Atomic Energy Press",

number = "5",

}

TY - JOUR

T1 - Research on model of fission gas bubble growth based on Oswald ripening mechanism

AU - Long, Chongsheng

AU - Zhang, Yu

AU - Chen, Hongsheng

AU - Xiao, Hongxing

AU - Wei, Tianguo

AU - Zhao, Yi

PY - 2016/10/15

Y1 - 2016/10/15

N2 - Based on the Ostwald ripening process, a mechanistic model for the fission gas bubble growth has been proposed in this paper. Taking U-Zr alloy and UO2 ceramic fuel as samples, the variation of FGB porosity and mean bubble size with the burn-up at different irradiation temperature and external restraint have been investigated in detail. For ceramic UO2, the porosity increase rate with the burn-up at 700℃ is 25% faster than that at 400℃. The external restraint impedes the growth of FGB, but it is not very significant. The porosity and mean bubble size in U-Zr alloy for the same irradiation parameters are much greater than that in the ceramic UO2 because the plastic deformation takes place very easy and quickly for U-Zr alloy during irradiation.

AB - Based on the Ostwald ripening process, a mechanistic model for the fission gas bubble growth has been proposed in this paper. Taking U-Zr alloy and UO2 ceramic fuel as samples, the variation of FGB porosity and mean bubble size with the burn-up at different irradiation temperature and external restraint have been investigated in detail. For ceramic UO2, the porosity increase rate with the burn-up at 700℃ is 25% faster than that at 400℃. The external restraint impedes the growth of FGB, but it is not very significant. The porosity and mean bubble size in U-Zr alloy for the same irradiation parameters are much greater than that in the ceramic UO2 because the plastic deformation takes place very easy and quickly for U-Zr alloy during irradiation.

KW - Fission gas bubble

KW - Growth

KW - Mechanical model

KW - Oswald ripening

UR - https://www.scopus.com/pages/publications/84992391442

U2 - 10.13832/j.jnpe.2016.05.0043

DO - 10.13832/j.jnpe.2016.05.0043

M3 - 文章

AN - SCOPUS:84992391442

SN - 0258-0926

VL - 37

SP - 43

EP - 45

JO - Hedongli Gongcheng/Nuclear Power Engineering

JF - Hedongli Gongcheng/Nuclear Power Engineering

IS - 5

ER -

Research on model of fission gas bubble growth based on Oswald ripening mechanism

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this