Počet záznamů: 1
Corrosion of ceramic silicon carbide in hydrofluoric acid
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SYSNO ASEP 0544788 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Corrosion of ceramic silicon carbide in hydrofluoric acid Tvůrce(i) Brožek, Vlastimil (UFP-V) RID
Živný, Oldřich (UFP-V) RID
Mastný, L. (CZ)
Matušek, M. (CZ)
Pokorný, P. (CZ)Celkový počet autorů 5 Zdroj.dok. Ceramics - Silikáty. - : University of Chemistry and Technology Prague - ISSN 0862-5468
Roč. 65, č. 2 (2021), s. 158-169Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova Corrosion resistance ; Hydrofluoric acid ; Silicon carbide Vědní obor RIV JK - Koroze a povrchové úpravy materiálů Obor OECD Materials engineering CEP GC17-10246J GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 UT WOS 000681448700007 EID SCOPUS 85111657999 DOI 10.13168/cs.2021.0015 Anotace Silicon carbide usable in mechanical or electrical engineering is produced in various purity grades and exhibits a large number of crystal structure variants. As for use in the chemical field, it is commonly stated that it is highly resistant in acid media but not suitable for use in alkaline media. This paper discusses the resistance of compact silicon carbide to hydrofluoric acid. The compact silicon carbide has been prepared by sintering using the SSiC method with or without binders based on scandium oxide Sc2O3 and calcium fluoride CaF2. The purest silicon carbide sample of cubic 3C structure sintered without a binder was almost insoluble in hydrofluoric acid. It has been shown, however, that pure silicon carbide is perfectly insoluble in hydrofluoric acid irrespective of the structure variants detected in the samples (3C, 4H, 6H, 15R). The corrosion stability of the compact ceramics is affected by the residual SiO2 content (together with other impurities) in imperfect SiC preparations, and it is influenced by the choice and chemical properties of the chosen ceramic binder as well. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2022 Elektronická adresa https://www.irsm.cas.cz/materialy/cs_content/2021_doi/Brozek_CS_2021_0015.pdf
Počet záznamů: 1