Investigation of mechanical properties resintered UO2 pellets by micro hardness method
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Date
2019-06
Journal Title
Journal ISSN
Volume Title
Publisher
Turkish Atomic Energy Authority
Abstract
Bu çalışmanın amacı, mikro sertlik testi kullanılarak re-sinter UO2 yakıt peletlerinin mekanik özelliklerinin incelenmesidir. UO2 yakıt peletleri toz metalurjisi yolu ile üretilmiştir. Ar +% 5 H2 atmosferinde 4 saat sinterleme ile üretilen UO2 peletleri, termal kararlılık testi için Ar +% 5 H2 atmosferinde 24 saat boyunca 1700 0C'de yeniden sinterlemeye tabi tutulmuştur. Termal kararlılık testinin UO2 peletlerinin mekanik ve mikroyapı özelliklerine etkisi tartışılmıştır.
Thermal stability test (re-sintering test) of the nuclear fuel is one of the most important characterization steps before loading to the reactor. The purpose of this study is investigation of mechanical properties of re-sintered UO2 pellets using micro hardness test method. UO2 fuel pellets were produced by powder metallurgical route. UO2 pellets sintered for 4 hours at Ar + 5% H2 atmosphere were subjected to re-sintering at 1700 0 C for 24 hours in Ar + 5% H2 atmosphere for thermal stability test. Re-sintering effects on the mechanical properties and microstructure of UO2 pellets were investigated.
Thermal stability test (re-sintering test) of the nuclear fuel is one of the most important characterization steps before loading to the reactor. The purpose of this study is investigation of mechanical properties of re-sintered UO2 pellets using micro hardness test method. UO2 fuel pellets were produced by powder metallurgical route. UO2 pellets sintered for 4 hours at Ar + 5% H2 atmosphere were subjected to re-sintering at 1700 0 C for 24 hours in Ar + 5% H2 atmosphere for thermal stability test. Re-sintering effects on the mechanical properties and microstructure of UO2 pellets were investigated.
Description
Keywords
Re-sintering, Yeniden sinterleme, Thermal stability test, Termal kararlılık testi, Micro hardness, Mikrosertlik, Mechanical properties, Mekanik özellikler, Microstructure, Mikroyapı, UO2
Citation
Akbal, S. ... [ve arkadaşları]. (2019). Investigation of mechanical properties resintered UO2 pellets by micro hardness method. Turkish Journal of Nuclear Sciences, 31(1), 24-29.