Počet záznamů: 1

On the Structural and Chemical Homogeneity of Spark Plasma Sintered Tungsten

SYSNO ASEP	0509560
Druh ASEP	J - Článek v odborném periodiku
Zařazení RIV	J - Článek v odborném periodiku
Poddruh J	Článek ve WOS
Název	On the Structural and Chemical Homogeneity of Spark Plasma Sintered Tungsten
Tvůrce(i)	Matějíček, Jiří (UFP-V)_{RID, ORCID} Vilémová, Monika (UFP-V)_{RID, ORCID} Veverka, Jakub (UFP-V)_ORCID Kubásek, J. (CZ) Lukáč, František (UFP-V)_ORCID Novák, P. (CZ) Preisler, D. (CZ) Stráský, J. (CZ) Weiss, Zdeněk (FZU-D)_ORCID
Celkový počet autorů	9
Číslo článku	879
Zdroj.dok.	Metals. - : MDPI Roč. 9, č. 8 (2019)
Poč.str.	18 s.
Jazyk dok.	eng - angličtina
Země vyd.	CH - Švýcarsko
Klíč. slova	carbon contamination ; mgal2o4 spinel ; powder ; fabrication ; reduction ; oxides ; alloy ; tungsten ; plasma-facing components ; spark plasma sintering ; homogeneity ; carbon ; processing factors
Vědní obor RIV	JG - Hutnictví, kovové materiály
Obor OECD	Materials engineering
CEP	GA17-23154S GA ČR - Grantová agentura ČR
Způsob publikování	Open access
Institucionální podpora	UFP-V - RVO:61389021
UT WOS	000484510000069
EID SCOPUS	85073271264
DOI	10.3390/met9080879
Anotace	Tungsten-based materials are the prime candidate plasma-facing materials for future fusion reactors, such as DEMO. Spark plasma sintering is a prospective fabrication technology with several advantageous features. The concurrent application of electric current, temperature and pressure enhances the sintering process, allowing for lower temperatures and shorter sintering times than traditional powder metallurgy processes. This in turn helps to avoid excessive grain growth and phase segregation in W-alloys. This study is focused on several factors that may influence the homogeneity of the sintered compacts-namely the diffusion of carbon from the graphite die, purity of the powder and sintering conditions. The following characteristics of spark plasma-sintered tungsten compacts were studied: composition (especially carbon and oxygen content), porosity, mechanical properties (hardness and fracture strength), and thermal diffusivity. The effects of the abovementioned processing factors were quantified, and local variations of selected properties were assessed.
Pracoviště	Ústav fyziky plazmatu
Kontakt	Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975
Rok sběru	2020
Elektronická adresa	https://www.mdpi.com/2075-4701/9/8/879

Počet záznamů: 1