Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Thermophysical properties of YSZ and YCeSZ suspension plasma sprayed coatings having different microstructures
Wroclaw Univ Sci & Technol, Fac Mech Engn, Ul Lukasiewicza 5, PL-50371 Wroclaw, Poland.
University West, Department of Engineering Science, Division of Manufacturing Processes. University West, Department of Engineering Science, Division of Subtractive and Additive Manufacturing. (PTW)ORCID iD: 0000-0003-1181-0415
Inst Plasma Phys CAS, Dept Mat Engn, Vvi, Slovankou 3, Prague 18200, Czech Republi.
Univ Limoges, Lab SPCTS, UMR CNRS 7315, 12 Rue Atlantis, F-87068 Limoges, France.
Show others and affiliations
2017 (English)In: Surface & Coatings Technology, ISSN 0257-8972, E-ISSN 1879-3347, Vol. 318, 28-38 p.Article in journal (Refereed) Published
Abstract [en]

The paper describes the ceramic top coats of Thermal Barrier Coatings (TBC) obtained by Suspension Plasma Spraying (SPS). The spray process realized with different plasma torches allowed obtaining coatings having different morphology, namely, columnar-like and two-zones microstructure. The microstructures influenced the thermal transport properties of TBC’s. The study analyses the thermophysical properties of yttria and yttria- with ceria- stabilized zirconia coatings, i.e. YSZ and YCeSZ, respectively. The spray processes were realized with the use of three different plasma spray torches: (i) SG-100; (ii) Axial III and (iii) hybrid WSP one. The deposition parameters were designed for each plasma torch separately. The microstructure of coatings was then analyzed using Optical and Scanning Electron Microscopy i.e. OM and SEM, respectively. The thermophysical properties of the coatings such as density, specific heat and thermal dilatation were measured using gas pycnometry, calorimetry and dilatometry methods respectively. The collected data were used, together with thermal diffusivity found with the use of laser flash method, to calculate the thermal conductivity of the deposits. The thermal conductivities of coatings were in a range from 0.63 to 0.99 [W/m.K] for YSZ samples and between 0.82 and 1.37 [W/m.K] in the case of YCeSZ coatings. Thermal transport properties were found to be influenced by the coatings’ porosity and their microstructure. Finally, the thermal conductivity values were successfully validated using response function method, which can be an alternative to complex FEM methods. (C) 2017 Elsevier B.V. All rights reserved.

Place, publisher, year, edition, pages
ELSEVIER SCIENCE SA , 2017. Vol. 318, 28-38 p.
Keyword [en]
Thermal Barrier Coatings (TBC); Suspension Plasma Spraying; Thermal conductivity; Specific heat; Thermal dilatation; Response function method
National Category
Manufacturing, Surface and Joining Technology
Research subject
ENGINEERING, Manufacturing and materials engineering
Identifiers
URN: urn:nbn:se:hv:diva-11038DOI: 10.1016/j.surfcoat.2017.02.054ISI: 000402356100005Scopus ID: 2-s2.0-85013649265OAI: oai:DiVA.org:hv-11038DiVA: diva2:1113988
Conference
7th International Meeting on Thermal Spraying (RIPT), Lumoges, FRANCE, DEC 09-11, 2015
Available from: 2017-06-22 Created: 2017-06-22 Last updated: 2017-10-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopus

Authority records BETA

Björklund, Stefan

Search in DiVA

By author/editor
Björklund, Stefan
By organisation
Division of Manufacturing ProcessesDivision of Subtractive and Additive Manufacturing
In the same journal
Surface & Coatings Technology
Manufacturing, Surface and Joining Technology

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 10 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf