OS0402 遮熱コーティングのCMAS損傷挙動に及ぼすトップコート施工法の影響

• 林 勇貴

  長岡技術科学大学大学院

• 山岸 郷志

  長岡技術科学大学

• 岡崎 正和

  長岡技術科学大学

書誌事項

タイトル別名

• OS0402 Effect of top coat spraying process on CMAS damage in thermal barrier coatings

抄録

The use of thermal barrier coatings (TBCs) for turbine blades in gas turbine engines has allowed higher engine operating temperatures exceeding the order of 1200 ℃ at the surface of the TBC top coat. More recently, it has been recognized that at these high temperatures the TBCs can be damaged by calcium-magnesium-alumino-silicates (CMAS) resulting from the ingestion of siliceous minerals (dust, sand, ash) with the intake air and from unclean fuels such as a syngas and biomass gas. The damage can accelerate the cracking and delamination of the TBCs and dramatically decrease its lifetime. In the present study, the CMAS damage was simulated in laboratory employing a synthetic CMAS product on Air Plasma sprayed (APS) and Electron Beam Physical Vapour Deposition (EB-PVD) thermal barrier coatings. The changes in microstructure were characterized, and the effect of the top coat spraying process on CMAS damage was discussed.

収録刊行物

• M&M材料力学カンファレンス

  M&M材料力学カンファレンス 2014 (0), _OS0402-1_-_OS0402-3_, 2014

  一般社団法人 日本機械学会

キーワード

• Ceramics
• CMAS
• Thermal Barrier Coatings
• Corrosion
• Gas Turbine

詳細情報

• CRID: 1390282680852867840
• NII論文ID: 110009939472
• DOI: 10.1299/jsmemm.2014._os0402-1_
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2014/0/2014__OS0402-1_/_pdf
• 本文言語コード: ja
• データソース種別:
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  • Crossref
  • CiNii Articles
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