Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach
ThO2 containing around 2 to 3 % U233O2 is considered as fuel for the forthcoming Indian Advanced Heavy Water Reactor (AHWR). High-density ThO2-UO2 pellets have been fabricated by powder metallurgy route using ThO2 and U3O8 powders as the starting materials. U3O8 decomposes to UO2 during high tempera...
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International Institute for the Science of Sintering, Beograd
2003-01-01
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doaj-f79c25e9a79b4804922f28ca21efb4402020-11-24T23:23:54ZengInternational Institute for the Science of Sintering, BeogradScience of Sintering0350-820X2003-01-0135312513210.2298/SOS0303125KDetermination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approachKutty T.R.G.Khan K.B.Hegde P.V.Sengupta A.K.Majumdar S.Kamath H.S.ThO2 containing around 2 to 3 % U233O2 is considered as fuel for the forthcoming Indian Advanced Heavy Water Reactor (AHWR). High-density ThO2-UO2 pellets have been fabricated by powder metallurgy route using ThO2 and U3O8 powders as the starting materials. U3O8 decomposes to UO2 during high temperature sintering and forms a solid solution with ThO2. The densification behaviour and sintering kinetics of the above were evaluated using a high temperature dilatometer using constant heating rate experiments. To evaluate the activation energy of sintering, a master sintering curve approach has been used. The activation energy for sintering for the above composition in air was found to be 500 kJ/mol. http://www.doiserbia.nb.rs/img/doi/0350-820X/2003/0350-820X0303125K.pdfsinteringkineticsactivation energydilatometerthoria |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Kutty T.R.G. Khan K.B. Hegde P.V. Sengupta A.K. Majumdar S. Kamath H.S. |
spellingShingle |
Kutty T.R.G. Khan K.B. Hegde P.V. Sengupta A.K. Majumdar S. Kamath H.S. Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach Science of Sintering sintering kinetics activation energy dilatometer thoria |
author_facet |
Kutty T.R.G. Khan K.B. Hegde P.V. Sengupta A.K. Majumdar S. Kamath H.S. |
author_sort |
Kutty T.R.G. |
title |
Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach |
title_short |
Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach |
title_full |
Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach |
title_fullStr |
Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach |
title_full_unstemmed |
Determination of activation energy of sintering of ThO2-U3O8 pellets using the master sintering curve approach |
title_sort |
determination of activation energy of sintering of tho2-u3o8 pellets using the master sintering curve approach |
publisher |
International Institute for the Science of Sintering, Beograd |
series |
Science of Sintering |
issn |
0350-820X |
publishDate |
2003-01-01 |
description |
ThO2 containing around 2 to 3 % U233O2 is considered as fuel for the forthcoming Indian Advanced Heavy Water Reactor (AHWR). High-density ThO2-UO2 pellets have been fabricated by powder metallurgy route using ThO2 and U3O8 powders as the starting materials. U3O8 decomposes to UO2 during high temperature sintering and forms a solid solution with ThO2. The densification behaviour and sintering kinetics of the above were evaluated using a high temperature dilatometer using constant heating rate experiments. To evaluate the activation energy of sintering, a master sintering curve approach has been used. The activation energy for sintering for the above composition in air was found to be 500 kJ/mol. |
topic |
sintering kinetics activation energy dilatometer thoria |
url |
http://www.doiserbia.nb.rs/img/doi/0350-820X/2003/0350-820X0303125K.pdf |
work_keys_str_mv |
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