Počet záznamů: 1
Evaluation of Internal Cohesion of Plasma-Sprayed Coatings by Cavitation Test: Feasibility Study
- 1.
SYSNO ASEP 0538124 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Evaluation of Internal Cohesion of Plasma-Sprayed Coatings by Cavitation Test: Feasibility Study Tvůrce(i) Mušálek, Radek (UFP-V) RID, ORCID
Nardozza, E. (IT)
Tesař, Tomáš (UFP-V) ORCID
Medřický, Jan (UFP-V) RIDCelkový počet autorů 4 Zdroj.dok. Acta Polytechnica. - : České vysoké učení technické - ISSN 1210-2709
Roč. 27, Červen (2020), s. 73-78Poč.str. 6 s. Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova Cavitation damage ; cohesion ; failure analysis ; plasma spray coatings Vědní obor RIV JP - Průmyslové procesy a zpracování Obor OECD Materials engineering CEP GA19-10246S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora UFP-V - RVO:61389021 DOI 10.14311/APP.2020.27.0073 Anotace Mechanical characterization of plasma-sprayed coatings at microscopic level representsa major challenge due to the presence of numerous inherent microstructural features such as cracks,pores, or splat boundaries, which complicate coatings characterization by conventional testing methods.Need for reliable testing of structural integrity of newly developed multiphase plasma-sprayed coatingsintroduced even more complexity to the testing. In this study, applicability of indirect vibratorycavitation test (adapted from ASTM G32 standard) for such testing was evaluated. Three plasma-sprayed coatings having distinctive microstructures were tested: i) conventional alumina coatingdeposited from coarse powder, ii) hybrid coating deposited by co-spraying of coarse alumina powderand fine yttria-stabilized zirconia (YSZ) suspension, and iii) compact alumina coating deposited fromfine ethanol-based suspension. Differences in the coatings internal cohesion were reflected in differentfailure mechanisms observed within the cavitation crater by scanning electron microscopy and meanerosion rates being i) 280μm/hour, ii) 97μm/hour and iii) 14μm/hour, respectively. Pracoviště Ústav fyziky plazmatu Kontakt Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Rok sběru 2021 Elektronická adresa https://ojs.cvut.cz/ojs/index.php/APP/article/view/6691/5733
Počet záznamů: 1