Počet záznamů: 1
Microstructure and phase stability of W-Cr alloy prepared by spark plasma sintering
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SYSNO ASEP 0489500 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Microstructure and phase stability of W-Cr alloy prepared by spark plasma sintering Tvůrce(i) Vilémová, Monika (UFP-V) RID, ORCID
Illková, Ksenia (UFP-V)
Lukáč, František (UFP-V) ORCID
Matějíček, Jiří (UFP-V) RID, ORCID
Klečka, Jakub (UFP-V) ORCID
Leitner, J. (CZ)Zdroj.dok. Fusion Engineering and Design. - : Elsevier - ISSN 0920-3796
Roč. 127, February (2018), s. 173-178Poč.str. 6 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Tungsten-chromium alloy ; Phase stability ; Decomposition ; Thermal conductivity ; Self-passivating alloys ; Spark plasma sintering Vědní obor RIV JJ - Ostatní materiály Obor OECD Materials engineering CEP GA17-23964S GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 UT WOS 000427343200023 EID SCOPUS 85040055266 DOI 10.1016/j.fusengdes.2018.01.012 Anotace Tungsten alloys currently represent prospective candidates to replace tungsten in the first wall applications in future fusion facilities. Tungsten has many advantageous features, however, it is rather susceptible to oxidation at temperatures above around 500 degrees C. To mitigate/suppress this, various oxide-forming elements are being added to tungsten to induce self-passivation. The most common ones are chromium, titanium and silicon. The alloyed powder is frequently prepared by mechanical alloying and then consolidated by a sintering method. Most of the published results are related to alloys consolidated by HIP process that leads to formation of multiphase material. In the presented study, W-10Cr alloy with hafnium oxide particle dispersion was prepared by spark plasma sintering. Unique features of the microstructure are discussed and compared with other processing methods Phase and thermal stability of the alloy was evaluated at three fusion-relevant temperatures using detailed X-ray diffraction analysis, differential thermal analysis and microstructural observations in a scanning electron microscope. Impact of the heat treatment on crucial properties such as thermal conductivity and heat capacity was evaluated. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2019
Počet záznamů: 1