Microstructure and thermal conductivity characteristics of Sm 2Zr2O7+8YSZ type TBCs

Grzegorz Moskal; Marta Mikuśkiewicz

doi:10.4028/www.scientific.net/DDF.336.91

Microstructure and thermal conductivity characteristics of Sm ₂Zr₂O₇+8YSZ type TBCs

Silesian University of Technology (SUT)

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

4 Citations (Scopus)

Abstract

The article presents results of microstructural investigations of plasma sprayed ceramic thermal barrier coatings obtained using Sm₂Zr ₂O₇+8YSZ and 8YSZ powders in 50/50, 25/75 and 75/25 proportions. The coatings thickness is evaluated and spherical, horizontal and vertical porosity is quantitatively and qualitatively characterized. The results obtained in this investigation were used for adjusted values of thermal conductivity calculations on the basis of results obtained from thermal diffusivity measurements at temperatures between 20 and 1100°C.

Original language	English
Title of host publication	Heat Transfer Processes in Engineering Materials
Publisher	Trans Tech Publications Ltd.
Pages	91-96
Number of pages	6
Volume	336
ISBN (Print)	9783037857113
DOIs	https://doi.org/10.4028/www.scientific.net/DDF.336.91
Publication status	Published - 8 May 2013

Keywords

Microstructure
Samarium zirconates
Thermal barrier coatings
Thermal properties

ASJC Scopus subject areas

Radiation
General Materials Science
Condensed Matter Physics

Access to Document

10.4028/www.scientific.net/DDF.336.91

Cite this

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abstract = "The article presents results of microstructural investigations of plasma sprayed ceramic thermal barrier coatings obtained using Sm2Zr 2O7+8YSZ and 8YSZ powders in 50/50, 25/75 and 75/25 proportions. The coatings thickness is evaluated and spherical, horizontal and vertical porosity is quantitatively and qualitatively characterized. The results obtained in this investigation were used for adjusted values of thermal conductivity calculations on the basis of results obtained from thermal diffusivity measurements at temperatures between 20 and 1100°C.",

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AB - The article presents results of microstructural investigations of plasma sprayed ceramic thermal barrier coatings obtained using Sm2Zr 2O7+8YSZ and 8YSZ powders in 50/50, 25/75 and 75/25 proportions. The coatings thickness is evaluated and spherical, horizontal and vertical porosity is quantitatively and qualitatively characterized. The results obtained in this investigation were used for adjusted values of thermal conductivity calculations on the basis of results obtained from thermal diffusivity measurements at temperatures between 20 and 1100°C.

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KW - Samarium zirconates

KW - Thermal barrier coatings

KW - Thermal properties

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