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Factors Affecting t...
Factors Affecting the Performance of Thermal Barrier Coatings in the Presence of V2O5 and Na2SO4
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- Jonnalagadda, Krisha Praveen (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Eriksson, Robert (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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- Peng, Ru (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Li, X. -H. (författare)
- Siemens Ind Turbomachinery AB, Sweden
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- Johansson, Sten (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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(creator_code:org_t)
- GOLLER VERLAG GMBH, 2016
- 2016
- Engelska.
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Ingår i: JOURNAL OF CERAMIC SCIENCE AND TECHNOLOGY. - : GOLLER VERLAG GMBH. - 2190-9385. ; 7:4, s. 409-415
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.4...
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Abstract
Ämnesord
Stäng
- This study investigates the influence of temperature, salt concentration and thickness on the corrosion resistance of seven YSZ thermal barrier coatings in the presence of V2O5 and Na2SO4. For this study, a thick, high-porosity APS coating (670 gm) using hollow spherical powder (HOSP) and a thin, low-porosity APS coating (300 pm) using agglomerated and sintered (Aamp;S) powder were fabricated. Corrosion tests were conducted at 750 degrees C and 900 degrees C with a mixture of Na2SO4 and V2O5 for four hours. At each temperature, salt concentrations of 4,10 and 20 mg/cm(2) were used. SEM and XRD investigations after the corrosion tests revealed that a combination of low temperature and high salt concentration resulted in higher corrosion-induced damage to the thin TBC coatings. With regard to the thick TBC coatings, all except one sample failed during the corrosion test. This suggests that thick TBC coatings with higher porosity may not be suitable in corrosive environments.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- HOSP; agglomerated and sintered YSZ; hot corrosion; TBC
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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