The “trapped fraction” and interfacial jumps of concentration in fission products release from coated fuel particles

A. S. Ivanov; A. A. Rusinkevich; M. D. Taran

doi:10.1016/j.jnucmat.2017.09.041

The “trapped fraction” and interfacial jumps of concentration in fission products release from coated fuel particles

A. S. Ivanov, A. A. Rusinkevich, M. D. Taran

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

1 Scopus citations

Abstract

The FP Kinetics computer code [1] designed for calculation of fission products release from HTGR coated fuel particles was modified to allow consideration of chemical bonding, effects of limited solubility and component concentration jumps at interfaces between coating layers. Curves of Cs release from coated particles calculated with the FP Kinetics and PARFUME [2] codes were compared. It has been found that the consideration of concentration jumps at silicon carbide layer interfaces allows giving an explanation of some experimental data on Cs release obtained from post-irradiation heating tests. The need to perform experiments for measurement of solubility limits in coating materials was noted.

Original language	English
Pages (from-to)	395-399
Number of pages	5
Journal	Journal of Nuclear Materials
Volume	498
DOIs	https://doi.org/10.1016/j.jnucmat.2017.09.041
State	Published - Jan 2018
Externally published	Yes

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abstract = "The FP Kinetics computer code [1] designed for calculation of fission products release from HTGR coated fuel particles was modified to allow consideration of chemical bonding, effects of limited solubility and component concentration jumps at interfaces between coating layers. Curves of Cs release from coated particles calculated with the FP Kinetics and PARFUME [2] codes were compared. It has been found that the consideration of concentration jumps at silicon carbide layer interfaces allows giving an explanation of some experimental data on Cs release obtained from post-irradiation heating tests. The need to perform experiments for measurement of solubility limits in coating materials was noted.",

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AB - The FP Kinetics computer code [1] designed for calculation of fission products release from HTGR coated fuel particles was modified to allow consideration of chemical bonding, effects of limited solubility and component concentration jumps at interfaces between coating layers. Curves of Cs release from coated particles calculated with the FP Kinetics and PARFUME [2] codes were compared. It has been found that the consideration of concentration jumps at silicon carbide layer interfaces allows giving an explanation of some experimental data on Cs release obtained from post-irradiation heating tests. The need to perform experiments for measurement of solubility limits in coating materials was noted.

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ER -

The “trapped fraction” and interfacial jumps of concentration in fission products release from coated fuel particles

Abstract

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