Title: Implementation of a spark plasma sintering facility in a hermetic glovebox for compaction of toxic, radiotoxic and air sensitive materials
Authors: TYRPEKL VACLAVBERKMANN ChristianHOLZHAEUSER MichaelKOEPP FRANZCOLOGNA MARCOWANGLE TADEASSOMERS Joseph
Citation: REVIEW OF SCIENTIFIC INSTRUMENTS vol. 86 p. 023904
Publisher: AMER INST PHYSICS
Publication Year: 2014
JRC N°: JRC92288
ISSN: 0034-6748
URI: http://scitation.aip.org/content/aip/journal/rsi/86/2/10.1063/1.4913529
http://publications.jrc.ec.europa.eu/repository/handle/JRC92288
DOI: 10.1063/1.4913529
Type: Articles in periodicals and books
Abstract: Spark plasma sintering (SPS) is a rapidly developing method for densification of powders into compacts. It belongs to the so-called ‘field assisted sintering techniques’ (FAST) that enable rapid sintering at much lower temperatures than the classical approaches of pressureless sintering of green pellets or hot isostatic pressing. In this paper we report the successful integration of a SPS device into a hermetic glovebox for the handling of highly radioactive material containing radioisotopes of U, Th, Pu, Np and Am. The glovebox implantation has been facilitated by the replacement of the hydraulic system to apply pressure with a compact electromechanical unit. The facility has been successfully tested using UO2 powder. Pellets with 97% of the theoretical density (TD) were obtained at 1000°C for 5 minutes, significantly lower than the ~1600°C for 5-10 hours used in conventional pellet sintering.
JRC Directorate:Nuclear Safety and Security

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