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Structure-property Relationships in Thermal Barrier Coatings by Finite Element Modelling
University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0002-4201-668X
University West, Department of Engineering Science, Research Enviroment Production Technology West. (PTW)ORCID iD: 0000-0001-7787-5444
2012 (English)In: Surface Modification Technologies XXV : proceedings of the Twenty Fifth International Conference on Surface Modification Technologies: SMT25, Trollhättan, June 20-22, 2011 / [ed] T. S. Sudarshan, and P. Nylén, [Chennai]: Valardocs , 2012, p. 175-184Conference paper, Published paper (Refereed)
Abstract [en]

The thermal and mechanical properties of Thermal Barrier Coating systems (TBCs) are strongly influenced by coating defects, such as delaminations and pores, thus making it essential to have a fundamental understanding of microstructure-property relationships in TBCs, to produce a desired coating. Object-Oriented Finite element analysis (OOF) has been shown previously as an effective tool for evaluating thermal and mechanical material behaviour, as this method is capable of incorporating the inherent material microstructure as an input to the model. In this work, OOF was used to predict the thermal conductivity and effective Young’s modulus of TBC topcoats. A Design of Experiments (DoE) was conducted by varying selected spray parameters for spraying Yttria Partially Stabilized Zirconia (YPSZ) topcoat. Characterisation of the coatings included microstructure, porosity and crack content and thermal conductivity measurements. The relationships between microstructural features, thermal conductivity and Young’s modulus are discussed.

Place, publisher, year, edition, pages
[Chennai]: Valardocs , 2012. p. 175-184
Keywords [en]
Thermal barrier coating, coatings
National Category
Energy Engineering Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering; Production Technology
Identifiers
URN: urn:nbn:se:hv:diva-4278ISBN: 978-81-910571-4-0 (print)OAI: oai:DiVA.org:hv-4278DiVA, id: diva2:519255
Conference
The Twenty Fifth International Conference on Surface Modification Technologies
Available from: 2012-04-24 Created: 2012-04-24 Last updated: 2019-01-04Bibliographically approved

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Gupta, Mohit KumarNylén, Per

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CiteExportLink to record
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