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Non-Linear Mechanical Behavior of Plasma Sprayed Alumina Under Mechanical and Thermal Loading
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SYSNO ASEP 0346365 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Non-Linear Mechanical Behavior of Plasma Sprayed Alumina Under Mechanical and Thermal Loading Author(s) Mušálek, Radek (UFP-V) RID, ORCID
Matějíček, Jiří (UFP-V) RID, ORCID
Vilémová, Monika (UFP-V) RID, ORCID
Kovářík, O. (CZ)Source Title Journal of Thermal Spray Technology. - : Springer - ISSN 1059-9630
Roč. 19, 1-2 (2010), s. 422-428Number of pages 7 s. Publication form web - web Action International Thermal Spray Conference (ITSC 2009):Expanding Thermal Spray Performance to New Markets and Applications Event date 04.05.2009-07.05.2009 VEvent location Las Vegas, NV Country US - United States Event type WRD Language eng - English Country US - United States Keywords APS coatings ; fatigue and fracture ; hardness and (visco-) elastic properties ; influence of spray parameters ; stiffness ; thermal cycling Subject RIV JK - Corrosion ; Surface Treatment of Materials R&D Projects GA106/08/1240 GA ČR - Czech Science Foundation (CSF) ME 901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000273671500046 DOI 10.1007/s11666-009-9362-x Annotation Mechanical response of plasma sprayed ceramic coatings to mechanical and thermal loading of various extents was studied. Coated samples were subjected to four-point bending (4PB), with coatings loaded in tension and compression, respectively. Thermal loading was provided by heating the samples, while stresses were generated by thermal mismatch between the coatings and substrates. In both cases, cyclic loading was applied. Non-linear behavior and significant hysteresis were observed, indicating inelastic phenomena taking place. The tests were complemented by structural observations in SEM and indentation tests. Relevant structural features and possible mechanisms underlying this behavior are discussed. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2011
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