Comparison of thermal shock behavior of nano-7YSZ, 15YSZ and 5.5SYSZ thermal barrier coatings produced by APS method

H. Jamali; M. R. Loghman-Estarki; R. Shoja Razavi; R. Mozafarinia; H. Edris; S. R. Bakhshi

doi:10.13168/cs.2016.0032

Comparison of thermal shock behavior of nano-7YSZ, 15YSZ and 5.5SYSZ thermal barrier coatings produced by APS method

H. Jamali, M. R. Loghman-Estarki, R. Shoja Razavi, R. Mozafarinia, H. Edris, S. R. Bakhshi

Research output: Journal Publication › Article › peer-review

11 Citations (Scopus)

Abstract

Nanostructured scandia, yttria doped zirconia (SYSZ), 7 wt. % yttria stabilized zirconia (7YSZ) and 15YSZ thermal barrier coatings (TBCs) were produced by plasma spraying on nickel-based superalloy substrates with NiCrAlY as the bond coat. The thermal shock behavior of the three as-sprayed TBCs at 1000°C was investigated. The results indicated that the thermal cycling lifetime of SYSZ and 7YSZ TBCs was longer than the 15YSZ TBCs due to the lower thermal mismatch stress between the ceramic layer and the metallic layer at high temperature and higher amount of tetragonal phase.

Original language	English
Pages (from-to)	210-219
Number of pages	10
Journal	Ceramics - Silikaty
Volume	60
Issue number	3
DOIs	https://doi.org/10.13168/cs.2016.0032
Publication status	Published - 2016
Externally published	Yes

Keywords

Atmospheric plasma spraying
Nanostructured thermal barrier coatings
Thermal shock resistance

ASJC Scopus subject areas

Analytical Chemistry
Ceramics and Composites
General Chemical Engineering
Physical and Theoretical Chemistry
Materials Chemistry

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10.13168/cs.2016.0032

Cite this

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title = "Comparison of thermal shock behavior of nano-7YSZ, 15YSZ and 5.5SYSZ thermal barrier coatings produced by APS method",

abstract = "Nanostructured scandia, yttria doped zirconia (SYSZ), 7 wt. \% yttria stabilized zirconia (7YSZ) and 15YSZ thermal barrier coatings (TBCs) were produced by plasma spraying on nickel-based superalloy substrates with NiCrAlY as the bond coat. The thermal shock behavior of the three as-sprayed TBCs at 1000°C was investigated. The results indicated that the thermal cycling lifetime of SYSZ and 7YSZ TBCs was longer than the 15YSZ TBCs due to the lower thermal mismatch stress between the ceramic layer and the metallic layer at high temperature and higher amount of tetragonal phase.",

keywords = "Atmospheric plasma spraying, Nanostructured thermal barrier coatings, Thermal shock resistance",

author = "H. Jamali and Loghman-Estarki, \{M. R.\} and \{Shoja Razavi\}, R. and R. Mozafarinia and H. Edris and Bakhshi, \{S. R.\}",

year = "2016",

doi = "10.13168/cs.2016.0032",

language = "English",

volume = "60",

pages = "210--219",

journal = "Ceramics - Silikaty",

issn = "0862-5468",

publisher = "University of Chemistry and Technology, Faculty of Environmental Technology",

number = "3",

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TY - JOUR

T1 - Comparison of thermal shock behavior of nano-7YSZ, 15YSZ and 5.5SYSZ thermal barrier coatings produced by APS method

AU - Jamali, H.

AU - Loghman-Estarki, M. R.

AU - Shoja Razavi, R.

AU - Mozafarinia, R.

AU - Edris, H.

AU - Bakhshi, S. R.

PY - 2016

Y1 - 2016

N2 - Nanostructured scandia, yttria doped zirconia (SYSZ), 7 wt. % yttria stabilized zirconia (7YSZ) and 15YSZ thermal barrier coatings (TBCs) were produced by plasma spraying on nickel-based superalloy substrates with NiCrAlY as the bond coat. The thermal shock behavior of the three as-sprayed TBCs at 1000°C was investigated. The results indicated that the thermal cycling lifetime of SYSZ and 7YSZ TBCs was longer than the 15YSZ TBCs due to the lower thermal mismatch stress between the ceramic layer and the metallic layer at high temperature and higher amount of tetragonal phase.

AB - Nanostructured scandia, yttria doped zirconia (SYSZ), 7 wt. % yttria stabilized zirconia (7YSZ) and 15YSZ thermal barrier coatings (TBCs) were produced by plasma spraying on nickel-based superalloy substrates with NiCrAlY as the bond coat. The thermal shock behavior of the three as-sprayed TBCs at 1000°C was investigated. The results indicated that the thermal cycling lifetime of SYSZ and 7YSZ TBCs was longer than the 15YSZ TBCs due to the lower thermal mismatch stress between the ceramic layer and the metallic layer at high temperature and higher amount of tetragonal phase.

KW - Atmospheric plasma spraying

KW - Nanostructured thermal barrier coatings

KW - Thermal shock resistance

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DO - 10.13168/cs.2016.0032

M3 - Article

AN - SCOPUS:84983027849

SN - 0862-5468

VL - 60

SP - 210

EP - 219

JO - Ceramics - Silikaty

JF - Ceramics - Silikaty

IS - 3

ER -

Comparison of thermal shock behavior of nano-7YSZ, 15YSZ and 5.5SYSZ thermal barrier coatings produced by APS method

Abstract

Keywords

ASJC Scopus subject areas

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