Solidus and liquidus of plutonium and uranium mixed oxide

Autor:	Tomoyuki Abe, Kyoichi Morimoto, Motoaki Kashimura, Masato Kato, Kenji Konashi, Hiromasa Sugata
Rok vydání:	2008
Předmět:	Mechanical Engineering Radiochemistry Metals and Alloys Analytical chemistry chemistry.chemical_element Liquidus Solidus Electron microprobe Uranium Tungsten Plutonium chemistry Mechanics of Materials Materials Chemistry Chemical composition Phase diagram
Zdroj:	Journal of Alloys and Compounds. 452:48-53
ISSN:	0925-8388
Popis:	Solidus and liquidus of mixed oxides of plutonium and uranium were measured as a function of Pu-content and oxygen-to-metal ratio using the thermal arrest technique. The solidus and the liquidus were observed to decrease with increasing Pu-content and to slightly increase with decreasing oxygen-to-metal ratio in the region of hypo-stoichiometric composition. The solidus of UO 2.00 , (Pu 0.12 U 0.88 )O 2.00 and (Pu 0.2 U 0.8 )O 2.00 were determined as 3128, 3077 and 3052 K, respectively. The solidus and the liquidus of the mixed oxides with 29 and 40 at% Pu were also measured. It was observed that a reaction with the tungsten capsule occurred during the measurement. Therefore, the solidus and the liquidus of the oxides with 29 and 40 at% Pu could not be obtained.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::da442946711f6c574a453ef5c28e9848 https://doi.org/10.1016/j.jallcom.2007.01.183 Zobrazit plný text záznamu Full Text from ScienceDirect