OS1201-428 遮熱コーティングの機械的特性および皮膜はく離に及ぼす無機質燃焼生成物の侵入の影響

• 山岸 郷志

  長岡技術科学大学

• 林 勇貴

  長岡技術科学大学大学院

• 岡崎 正和

  長岡技術科学大学

• 深沼 博隆

  プラズマ技研工業株式会社

書誌事項

タイトル別名

• OS1201-428 Influence of molten CMAS (CaO-MgO-Al_2O_3-SiO_2) infiltration on the mechanical property of thermal barrier coatings and their delamination behavior

抄録

The importance of TBC (Thermal Barrier Coating) is increasing with development of high performance gas turbine system that can operate at higher temperature. The TBC, which consists of ceramic top coating layer and metallic bond coating layer, deteriorate by the high temperature loading condition. The CMAS (CaO-MgO-Al_2O_3-SiO_2) infiltration into the topcoat is also one of degradation mechanism of TBCs. Delamination of the topcoat with CMAS infiltrated layer was observed in this study. Increasing in elastic modulus of a CMAS infiltrated TBC topcoat was also observed. Thermal stress analysis was conducted in this study. The results indicate that the compressive stress state that can promote a buckling-mode coating delamination developed in the CMAS infiltrated topcoat.

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 2015 (0), _OS1201-42-_OS1201-42, 2015

  一般社団法人 日本機械学会

キーワード

• TBC
• CMAS
• Elastic modulus
• Thermal stress
• Delamination

詳細情報

• CRID: 1390282680852168448
• NII論文ID: 110010053559
• DOI: 10.1299/jsmemm.2015._os1201-42
• ISSN: 24242845
• Web Site: https://www.jstage.jst.go.jp/article/jsmemm/2015/0/2015__OS1201-42/_pdf
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可