Simulated zirconium oxide-based inert matrix fuel (IMF) has been prepared using cerium oxide replacing plutonium oxide, following the conventional pelletising route, in which an improved two-stage attrition mill was employed. Different methods have been applied for the powder preparation. In addition to powder mixing, nitrate solutions have been co-precipitated to bulk gel and to microspheres by the internal gelation process. The calcined porous microspheres were crushed in the attrition mill with a few passes. This co-precipitated powder was compared with three different mixtures of the four commercially available powders (ZrO2, Y2O3, Er2O3 and CeO2). Pellets of a standard size with relative densities higher than 90\% TD and comparable grain and pore structures have been obtained. Based on these simulation tests both processes are found suitable for fabricating IMF pellets, which fulfil requirements of a commercial plutonium and uranium mixed oxide (MOX), where applicable. No intensive milling is required to form a solid solution in the sintering step for a (Zr,Y,Er,Ce)O2−x pellet. For the fabrication of plutonium-containing IMF, a similar behaviour can be expected.
%0 Journal Article
%1 citeulike:5760374
%A Lee, Young-Woo
%A Kim, Han-Soo
%A Kim, Si-Hyung
%A Joung, Chang-Young
%A Na, Sang-Ho
%A Ledergerber, Guido
%A Heimgartner, Peter
%A Pouchon, Manuel A.
%A Burghartz, Marion
%D 1999
%J Journal of Nuclear Materials
%K imported
%N 1-2
%P 7--14
%R 10.1016/S0022-3115(99)00094-X
%T Preparation of simulated inert matrix fuel with different powders by dry milling method
%U http://dx.doi.org/10.1016/S0022-3115(99)00094-X
%V 274
%X Simulated zirconium oxide-based inert matrix fuel (IMF) has been prepared using cerium oxide replacing plutonium oxide, following the conventional pelletising route, in which an improved two-stage attrition mill was employed. Different methods have been applied for the powder preparation. In addition to powder mixing, nitrate solutions have been co-precipitated to bulk gel and to microspheres by the internal gelation process. The calcined porous microspheres were crushed in the attrition mill with a few passes. This co-precipitated powder was compared with three different mixtures of the four commercially available powders (ZrO2, Y2O3, Er2O3 and CeO2). Pellets of a standard size with relative densities higher than 90\% TD and comparable grain and pore structures have been obtained. Based on these simulation tests both processes are found suitable for fabricating IMF pellets, which fulfil requirements of a commercial plutonium and uranium mixed oxide (MOX), where applicable. No intensive milling is required to form a solid solution in the sintering step for a (Zr,Y,Er,Ce)O2−x pellet. For the fabrication of plutonium-containing IMF, a similar behaviour can be expected.
@article{citeulike:5760374,
abstract = {Simulated zirconium oxide-based inert matrix fuel (IMF) has been prepared using cerium oxide replacing plutonium oxide, following the conventional pelletising route, in which an improved two-stage attrition mill was employed. Different methods have been applied for the powder preparation. In addition to powder mixing, nitrate solutions have been co-precipitated to bulk gel and to microspheres by the internal gelation process. The calcined porous microspheres were crushed in the attrition mill with a few passes. This co-precipitated powder was compared with three different mixtures of the four commercially available powders (ZrO2, Y2O3, Er2O3 and CeO2). Pellets of a standard size with relative densities higher than 90\% TD and comparable grain and pore structures have been obtained. Based on these simulation tests both processes are found suitable for fabricating IMF pellets, which fulfil requirements of a commercial plutonium and uranium mixed oxide (MOX), where applicable. No intensive milling is required to form a solid solution in the sintering step for a (Zr,Y,Er,Ce)O2−x pellet. For the fabrication of plutonium-containing IMF, a similar behaviour can be expected.},
added-at = {2009-09-16T11:28:59.000+0200},
author = {Lee, Young-Woo and Kim, Han-Soo and Kim, Si-Hyung and Joung, Chang-Young and Na, Sang-Ho and Ledergerber, Guido and Heimgartner, Peter and Pouchon, Manuel A. and Burghartz, Marion},
biburl = {https://www.bibsonomy.org/bibtex/272f097f7af219be0abfcd2bad9e89744/pouchon},
citeulike-article-id = {5760374},
citeulike-linkout-0 = {http://dx.doi.org/10.1016/S0022-3115(99)00094-X},
citeulike-linkout-1 = {http://linkinghub.elsevier.com/retrieve/pii/S0022-3115(99)00094-X},
doi = {10.1016/S0022-3115(99)00094-X},
interhash = {c1129a130d09490ec214f1f7b3992f57},
intrahash = {72f097f7af219be0abfcd2bad9e89744},
issn = {00223115},
journal = {Journal of Nuclear Materials},
keywords = {imported},
month = {August},
number = {1-2},
pages = {7--14},
posted-at = {2009-09-09 19:42:20},
priority = {0},
timestamp = {2009-09-16T11:29:19.000+0200},
title = {Preparation of simulated inert matrix fuel with different powders by dry milling method},
url = {http://dx.doi.org/10.1016/S0022-3115(99)00094-X},
volume = 274,
year = 1999
}