Coarsening-densification transition temperature in sintering of uranium dioxide

Balakrishna, Palanki ; Murty, B. Narasimha ; Chakraborthy, K. P. ; Jayaraj, R. N. ; Ganguly, C. (2001) Coarsening-densification transition temperature in sintering of uranium dioxide Journal of Nuclear Materials, 297 (1). pp. 35-42. ISSN 0022-3115

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The concept of coarsening-densification transition temperature (CDTT) has been proposed to explain the experimental observations of the study of sintering undoped uranium dioxide and niobia-doped uranium dioxide powder compacts in argon atmosphere in a laboratory tubular furnace. The general method for deducing CDTT for a given material under the prevailing conditions of sintering and the likely variables that influence the CDTT are described. Though the present work is specific in nature for uranium dioxide sintering in argon atmosphere, the concept of CDTT is fairly general and must be applicable to sintering of any material and has immense potential to offer advantages in designing and/or optimizing the profile of a sintering furnace, in the diagnosis of the fault in the process conditions of sintering, and so on. The problems of viewing the effect of heating rate only in terms of densification are brought out in the light of observing the undesirable phenomena of coring and bloating and causes were identified and remedial measures suggested.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
ID Code:10727
Deposited On:09 Nov 2010 05:07
Last Modified:31 May 2011 07:39

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