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Application of laser-ultrasound for characterization of plasma-sprayed ceramics
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SYSNO ASEP 0473346 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Application of laser-ultrasound for characterization of plasma-sprayed ceramics Author(s) Koller, Martin (UT-L) ORCID
Seiner, Hanuš (UT-L) RID, ORCID
Sedlák, Petr (UT-L) RID, ORCID
Kotlan, Jiří (UFP-V)
Ctibor, Pavel (UFP-V) RID, ORCID
Mušálek, Radek (UFP-V) RID, ORCID
Landa, Michal (UT-L) RIDNumber of authors 7 Article number 4 Source Title Defect and Diffusion Forum, Local Mechanical Properties, 368. - Zürich : Trans Tech Publications Ltd, 2016 / Louda P. - ISSN 1012-0386 - ISBN 978-3-03835-720-9 Pages s. 69-72 Number of pages 4 s. Publication form Print - P Action International Conference on Local Mechanical Properties /12./ Event date 04.11.2015 - 06.11.2015 VEvent location Liberec Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords laser-ultrasound ; plasma spraying ; porosity Subject RIV BI - Acoustics Subject RIV - cooperation Institute of Plasma Physics - Ceramics, Fire-Resistant Materials and Glass R&D Projects GB14-36566G GA ČR - Czech Science Foundation (CSF) Institutional support UT-L - RVO:61388998 ; UFP-V - RVO:61389021 EID SCOPUS 84970998461 DOI 10.4028/www.scientific.net/DDF.368.69 Annotation Laser-based resonant ultrasound spectroscopy (RUS) method was applied to measure elastic constants of a porous calcium titanate coating manufactured by water-stabilized plasmaspraying (WSP). To enhance the reflectivity of the polished surface of this material for the lasers applied at RUS measurements, a thin coating of sodium metasilicate (waterglass) was used. It is discussed how the metasilicate affects the acoustic properties of the underlying porous material and experimentally shown that such a surface treatment enables the characterization of the structural processes in these materials at elevated temperatures. Workplace Institute of Thermomechanics Contact Marie Kajprová, kajprova@it.cas.cz, Tel.: 266 053 154 ; Jana Lahovská, jaja@it.cas.cz, Tel.: 266 053 823 Year of Publishing 2017
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