Authors:
H. P. NawadaRadiochemistry Programme Indira Gandhi Centre for Atomic Research 603 102 Kalpakkam India

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P. Srirama MurtiRadiochemistry Programme Indira Gandhi Centre for Atomic Research 603 102 Kalpakkam India

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G. SeenivasanRadiochemistry Programme Indira Gandhi Centre for Atomic Research 603 102 Kalpakkam India

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S. AnthonysamyRadiochemistry Programme Indira Gandhi Centre for Atomic Research 603 102 Kalpakkam India

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C. K. MathewsRadiochemistry Programme Indira Gandhi Centre for Atomic Research 603 102 Kalpakkam India

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Systematic studies were carried out on the oxidation behaviour of uranium dicarbide in air in the temperature range 25 °C to 700 °C employing thermogravimetry, evolved gas detection X-ray diffraction and chemical analysis. The mechanistic aspects were investigated and the oxidation was found to proceed through reaction processes involving oxidation of uranium toα-UO3 with release of chemically bound carbon, reaction of released carbon leading to the formation of CO2 which gets liberated stepwise, decomposition ofα-UO3 to U3O8 and oxidation of free carbon to CO2. Examination of the thermoanalytical behaviour of sintered graphite, UO3, mixtures of graphite with UO3 and with U3O8 supported the above findings.

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation
1969
Volumes
per Year
1
Issues
per Year
24
Founder Akadémiai Kiadó
Founder's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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Author:
J. Davidovits