Diffusion kinetics of gaseous fission products arising under uranium fuel irradiation

Autor:	N. M. Vlasov, V. A. Zaznoba
Rok vydání:	2014
Předmět:	Nuclear fission product Fission products Materials science Physics and Astronomy (miscellaneous) Nuclear fuel Cauchy stress tensor chemistry.chemical_element Thermodynamics Intergranular corrosion Uranium Nuclear physics chemistry Grain boundary Irradiation Nuclear Experiment
Zdroj:	Technical Physics. 59:1470-1475
ISSN:	1090-6525 1063-7842
DOI:	10.1134/s1063784214100326
Popis:	A physical mechanism underlying the diffusion migration of gaseous fission products near the triple joints of grain boundaries during nuclear fuel burnout is suggested and mathematically substantiated. The diffusion kinetics is analyzed with regard to the first invariant of the stress tensor for a given structural defect. The results of mathematical simulation are of interest for analysis of nuclear fuel swelling due to the growth of intergranular pores and formation of channels for fission product migration along the grain boundaries.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da06fda56e0cb8e2b86f5245d74191fe https://doi.org/10.1134/s1063784214100326 Zobrazit plný text záznamu Plný text ve formátu PDF