Investigation of the first stage sintering kinetics of additive free Uo2 pellets
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Date
2018
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Publisher
Turkish Atomic Energy Authority
Abstract
Bu çalışmanın amacı katışkısız UO2 yakıt peletlerinin birinci sinterleme kinetiği ve aktivasyon enerjilerinin incelenmesidir. UO2 ve U3O8 ilave edilmiş UO2 yakıt peletleri toz metalurji yöntemiyle üretilmiştir. UO2 ve U3O8 ilave edilmiş UO2 yakıt peletleri dilatometrede, Ar+%5 H2 atmosferinde sinterlenmiştir. Aktivasyon enerjilerini hesaplamak için sabit ısıtma hızı yöntemi kullanılmıştır. Ayrıca, sinterlenen peletlerin özelliklerine U3O8 etkisi incelenmiştir.
The purpose of this study is to investigate the first stage sintering kinetics and to calculate activation energy of additive free UO2 pellets. UO2 pellets and U3O8 added UO2 pellets were fabricated by powder metallurgy route. Pellets were sintered in the Ar+ 5% H2 atmosphere using a dilatometer. Activation energy calculations carried out by constant heating rate. The influence of U3O8 addition on the properties of sintered UO2 pellets was also investigated.
The purpose of this study is to investigate the first stage sintering kinetics and to calculate activation energy of additive free UO2 pellets. UO2 pellets and U3O8 added UO2 pellets were fabricated by powder metallurgy route. Pellets were sintered in the Ar+ 5% H2 atmosphere using a dilatometer. Activation energy calculations carried out by constant heating rate. The influence of U3O8 addition on the properties of sintered UO2 pellets was also investigated.
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Keywords
Nükleer pelet, Nuclear fuel pellet, Activation energy, Aktivasyon enerji, Constant heating rate, Sabit ısıtma hızı, UO2, U3O8
Citation
Akbal, S. ve Yaylı, A. (2018). Investigation of the first stage sintering kinetics of additive free Uo2 pellets. Turkish Journal of Nuclear Sciences, 30(2), 13-20.