Počet záznamů: 1
The influence of substrate temperature and spraying distance on the properties of plasma sprayed tungsten and steel coatings deposited in a shrouding chamber
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SYSNO ASEP 0476705 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název The influence of substrate temperature and spraying distance on the properties of plasma sprayed tungsten and steel coatings deposited in a shrouding chamber Tvůrce(i) Matějíček, Jiří (UFP-V) RID, ORCID
Vilémová, Monika (UFP-V) RID, ORCID
Nevrlá, Barbara (UFP-V) RID
Kocmanová, Lenka (UFP-V)
Veverka, Jakub (UFP-V) ORCID
Halasová, Martina (UFM-A)
Hadraba, Hynek (UFM-A) RID, ORCIDZdroj.dok. Surface and Coatings Technology. - : Elsevier - ISSN 0257-8972
Roč. 318, May (2017), s. 217-223Poč.str. 7 s. Forma vydání Tištěná - P Akce International Meeting on Thermal Spraying (RIPT)/7./ Datum konání 09.12.2015 - 11.12.2015 Místo konání Limoges Země FR - Francie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CH - Švýcarsko Klíč. slova Tungsten ; Steel ; Atmospheric plasma spraying ; Shrouding ; Substrate temperature ; Fusion reactor materials ; Plasma facing components Vědní obor RIV JK - Koroze a povrchové úpravy materiálů Obor OECD Coating and films Vědní obor RIV – spolupráce Ústav fyziky materiálu - Koroze a povrchové úpravy materiálů CEP GB14-36566G GA ČR - Grantová agentura ČR Institucionální podpora UFP-V - RVO:61389021 ; UFM-A - RVO:68081723 UT WOS 000402356100025 EID SCOPUS 85006010338 DOI 10.1016/j.surfcoat.2016.10.055 Anotace Plasma spraying is among the alternative technologies for manufacturing tungsten-based coatings or graded interlayers for plasma facing components of fusion devices. The main limitation lies in the relatively low thermal conductivity, stemming from the anisotropic porosity and imperfect bonding between the splats. For several materials, it has been shown that increased substrate temperature leads to improved intersplat bonding and increased coating density. However, spraying of metals at elevated temperatures in ambient atmosphere is accompanied by enhanced oxidation.
This work is focused on the effects of substrate temperature on the properties of plasma sprayed tungsten and steel coatings. A range of substrate temperatures was achieved by varying the preheating temperature, pauses between torch passes, spraying distance and intensity of cooling. To suppress oxidation, the substrates were placed in a special shrouding chamber flushed with argon-hydrogen mixture. The coatings were characterized for their structure, porosity, hardness, thermal conductivity and oxygen content. A marked improvement of these properties with substrate temperature was observed and correlated to the spraying parameters.Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2018
Počet záznamů: 1