A novel gel combustion procedure for the preparation of foam and porous pellets of UO₂

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• 作者：D. Sanjay Kumar^a ; K. Ananthasivan^a ; ^{asivan@igcar.gov.in} ; R. Venkata Krishnan^b ; Dasarath Maji^b ; Arup Dasgupta^c
• 关键词：Porous UO2 pellet ; UO2 foam ; Sucrose ; Citric acid ; Sintering
• 刊名：Journal of Nuclear Materials
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：483
• 期：Complete
• 页码：199-204
• 全文大小：1911 K
• 卷排序：483

文摘

Urania foam was successfully prepared for the first time by using sucrose-gel precursor method. Porous urania pellets were successfully prepared for the first time by using citrate gel-combustion method. The foam comprised both meso and macro pores, possessed good crush strength and porosity. Citric acid to nitrate ratio of 0.25 and a compaction pressure of 180 MPa were best suited for the preparation of porous pellets.