Number of the records: 1
Synthesis of dense yttrium-stabilised hafnia pellets for nuclear applications by spark plasma sintering
- 1.
SYSNO ASEP 0439262 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Synthesis of dense yttrium-stabilised hafnia pellets for nuclear applications by spark plasma sintering Author(s) Tyrpekl, V. (DE)
Holzhdauser, M. (DE)
Hein, H. (DE)
Vigier, J.F. (DE)
Somers, J. (DE)
Svora, Petr (UACH-T) SAISource Title Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115
Roč. 454, 1-3 (2014), s. 398-404Number of pages 7 s. Language eng - English Country NL - Netherlands Keywords Nuclear application ; Sol-gel ; Zirconia ; Transmutation ; Fabrication ; Actinides Subject RIV CA - Inorganic Chemistry Institutional support UACH-T - RVO:61388980 UT WOS 000344428900052 EID SCOPUS 84908222068 DOI 10.1016/j.jnucmat.2014.08.029 Annotation Dense yttrium-stabilised hafnia pellets (91.35 wt.% HfO2 and 8.65 wt.% Y2O3) were prepared by spark plasma sintering consolidation of micro-beads synthesised by the "external gelation" sol-gel technique. This technique allows a preparation of HfO2-Y2O3 beads with homogenous yttria-hafnia solid solution. A sintering time of 5 min at 1600 degrees C was sufficient to produce high density pellets (over 90% of the theoretical density) with significant reproducibility. The pellets have been machined in a lathe to the correct dimensions for use as neutron absorbers in an experimental test irradiation in the High Flux Reactor (HFR) in Petten, Holland, in order to investigate the safety of americium based nuclear fuels. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2015
Number of the records: 1