Metallic residues after hydriding of zirconium
Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
As a part of the production of nitride nuclear fuel for use in fast nuclear reactors, zirconium is hydrided followed by nitriding and mixing with uranium nitride. This work concludes a study of unwanted metallic particles present in a powder that is supposed to be a zirconium hydride. Sponge zirconium was hydrided at different temperatures and different time intervals, and the resulting hydride was milled into a powder. The powders were analyzed using SEM and XRD after which the powders were pressed into pellets for light optical microscopic study. The primary goals were determination of the structure of the particles and thereafter elimination of them. It was seen that hydriding at 500 C results in less metal particles but more experiments need to be conducted to confirm this.
Place, publisher, year, edition, pages
2012. , 48 p.
zirconium hydride, ZrH, nuclear fuel, nitride, metallic residues, hydriding, hydrogenation
IdentifiersURN: urn:nbn:se:kth:diva-125027OAI: oai:DiVA.org:kth-125027DiVA: diva2:638959
Subject / course
Materials Science and Engineering
Master of Science in Engineering - Materials Design and Engineering
Jolkkonen, Mikael, PhD
Eliasson, Anders, Dr