Počet záznamů: 1
Phase Formation Control in Plasma Sprayed Alumina–Chromia Coatings
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SYSNO ASEP 0367138 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Phase Formation Control in Plasma Sprayed Alumina–Chromia Coatings Tvůrce(i) Dubský, Jiří (UFP-V) RID
Chráska, Pavel (UFP-V) RID
Kolman, Blahoslav Jan (UFP-V)
Stahr, C.Ch. (DE)
Berger, L.-M. (DE)Zdroj.dok. Ceramics - Silikáty. - : University of Chemistry and Technology Prague - ISSN 0862-5468
Roč. 55, č. 3 (2011), s. 294-300Poč.str. 7 s. Forma vydání web - web Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova Alumina ; Chromia ; Plasma spraying ; Phase stabilization Vědní obor RIV JH - Keramika, žáruvzdorné materiály a skla CEP GA106/08/1240 GA ČR - Grantová agentura ČR CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000297615100015 Anotace Alumina is an inexpensive material often used as feedstock for plasma spraying. Hard corundum (α-Al2O3) is desirable in coatings, but other phases, unstable at elevated temperatures, also form as result of the complexity of the spraying processes. When chromia (Cr2O3) is added to Al2O3 a complex corundum type α-(Al,Cr)2O3 phase forms in the deposits. Two types of Al2O3/Cr2O3 powder feedstock with 2%, 8%, 33% and 50% Cr2O3 were sprayed: fused materials and mixtures of Al2O3 and Cr2O3 powders. Coatings were made by the water-stabilized plasma (WSP®) system and by commercial atmospheric plasma spraying (APS) and compared by various characterization techniques, including X-ray diffraction, scanning elektron microscopy and microanalysis. Coatings made from fused feedstock by both spraying methods contain the corundum phase with its fraction increasing with increasing Cr2O3 content. In case of mixed feedstock the stabilization effect was observed for WSP® spraying only. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2012
Počet záznamů: 1