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Properties of Ultrafine-Grained Tungsten Prepared by Ball Milling and Spark Plasma Sintering
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SYSNO ASEP 0451227 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Properties of Ultrafine-Grained Tungsten Prepared by Ball Milling and Spark Plasma Sintering Author(s) Vilémová, Monika (UFP-V) RID, ORCID
Nevrlá, Barbara (UFP-V) RID
Pala, Zdeněk (UFP-V) RID
Kocmanová, Lenka (UFP-V)
Janata, Marek (UFP-V)
Matějíček, Jiří (UFP-V) RID, ORCID
Tonarová, Dana (UFP-V)Source Title Applied Mechanics and Materials, 821 - Engineering Mechanics 2015. - Zürich : Trans Tech Publications Inc, 2016 / Fischer C. - ISSN 1660-9336 - ISBN 978-3-03835-700-1 Pages s. 399-404 Number of pages 6 s. Publication form Print - P Action Engineering Mechanics 2015, International conference engineering mechanics 2015/21./ Event date 11.05.2015-14.05.2015 VEvent location Svratka Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords ultrafine-grained tungsten ; planetary ball milling ; spark plasma sintering Subject RIV JJ - Other Materials R&D Projects GA14-12837S GA ČR - Czech Science Foundation (CSF) Institutional support UFP-V - RVO:61389021 DOI 10.4028/www.scientific.net/AMM.821.399 Annotation Tungsten is a candidate material for the first wall of a nuclear fusion reactor. First wall will be subjected to harsh conditions that will gradually deteriorate properties of the wall material. Some studies point out that fine-grained tungsten could be more resistant to the structure and property changes than coarse-grained tungsten. In this study, preparation of ultrafine-grained tungsten by mechanical processing in a planetary ball mill was examined. Three types of tungsten samples were compared. One was made from coarse grained tungsten powder consolidated by SPS (Spark Plasma Sintering). Other two samples were prepared from the powder processed in a planetary ball mill with and without addition of Y2O3. After ball milling, the powders were consolidated by SPS. Properties of the samples such as hardness and thermal conductivity were examined and correlated with the processing history and microstructure. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2016
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