Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings

K. Takagi; D. Kudo; A. Kawasaki; Y. Harada; M. Okazaki

doi:10.1361/cp2009itsc0018

Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings

K. Takagi, D. Kudo, A. Kawasaki, Y. Harada, M. Okazaki

工学研究科・材料システム工学専攻

研究成果: Conference contribution

1 被引用数 (Scopus)

抄録

We aim at industrial standardization of a testing method for thermal expansion behavior of thermal barrier coatings (TBCs). A push-rod type thermomechanical analysis (TMA) was selected as a widely used method, and was examined whether to evaluate accurate thermal expansion behavior from a thin specimen with the thickness of practical TBCs. We first demonstrated that the TMA measurements with a specimen support and optimum conditions were able to provide accurate mean coefficients of thermal expansion (CTEs) of dense yettria- stabilized zirconia (YSZ) from the thin specimens with the thickness down to 0.3mm. In addition, it showed good reproducibility with small measurement error less than 5%. This modified TMA was also assured to be able to accurately evaluate CTEs and sintering behavior of plasma-sprayed YSZ from 0.3mm-thick specimens. Therefore, we actually used this method to explore the influence of annealing on thermal expansion behavior of the YSZ coating. As a result, the modified TMA measurements detected a slightly monotonie decrease in CTE with annealing.

本文言語	English
ホスト出版物のタイトル	Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009
ページ	18-22
ページ数	5
DOI	https://doi.org/10.1361/cp2009itsc0018
出版ステータス	Published - 2009
イベント	Expanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009 - Las Vegas, NV, United States 継続期間: 2009 5月 4 → 2009 5月 7

出版物シリーズ

名前	Proceedings of the International Thermal Spray Conference

Other

Other	Expanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009
国/地域	United States
City	Las Vegas, NV
Period	09/5/4 → 09/5/7

ASJC Scopus subject areas

表面および界面
表面、皮膜および薄膜
材料化学

文献へのアクセス

10.1361/cp2009itsc0018

他のファイルとリンク

引用スタイル

Takagi, K., Kudo, D., Kawasaki, A., Harada, Y., & Okazaki, M. (2009). Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings. In Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009 (pp. 18-22). (Proceedings of the International Thermal Spray Conference). https://doi.org/10.1361/cp2009itsc0018

Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings. / Takagi, K.; Kudo, D.; Kawasaki, A. その他.

Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009. 2009. p. 18-22 (Proceedings of the International Thermal Spray Conference).

研究成果: Conference contribution

Takagi, K, Kudo, D, Kawasaki, A, Harada, Y & Okazaki, M 2009, Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings. in Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009. Proceedings of the International Thermal Spray Conference, pp. 18-22, Expanding Thermal Spray Performance to New Markets and Applications - 2009 International Thermal Spray Conference, ITSC 2009, Las Vegas, NV, United States, 09/5/4. https://doi.org/10.1361/cp2009itsc0018

Takagi K, Kudo D, Kawasaki A, Harada Y, Okazaki M. Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings. In Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009. 2009. p. 18-22. (Proceedings of the International Thermal Spray Conference). doi: 10.1361/cp2009itsc0018

Takagi, K. ; Kudo, D. ; Kawasaki, A. その他. / Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings. Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009. 2009. pp. 18-22 (Proceedings of the International Thermal Spray Conference).

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title = "Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings",

abstract = "We aim at industrial standardization of a testing method for thermal expansion behavior of thermal barrier coatings (TBCs). A push-rod type thermomechanical analysis (TMA) was selected as a widely used method, and was examined whether to evaluate accurate thermal expansion behavior from a thin specimen with the thickness of practical TBCs. We first demonstrated that the TMA measurements with a specimen support and optimum conditions were able to provide accurate mean coefficients of thermal expansion (CTEs) of dense yettria- stabilized zirconia (YSZ) from the thin specimens with the thickness down to 0.3mm. In addition, it showed good reproducibility with small measurement error less than 5%. This modified TMA was also assured to be able to accurately evaluate CTEs and sintering behavior of plasma-sprayed YSZ from 0.3mm-thick specimens. Therefore, we actually used this method to explore the influence of annealing on thermal expansion behavior of the YSZ coating. As a result, the modified TMA measurements detected a slightly monotonie decrease in CTE with annealing.",

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AU - Takagi, K.

AU - Kudo, D.

AU - Kawasaki, A.

AU - Harada, Y.

AU - Okazaki, M.

PY - 2009

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N2 - We aim at industrial standardization of a testing method for thermal expansion behavior of thermal barrier coatings (TBCs). A push-rod type thermomechanical analysis (TMA) was selected as a widely used method, and was examined whether to evaluate accurate thermal expansion behavior from a thin specimen with the thickness of practical TBCs. We first demonstrated that the TMA measurements with a specimen support and optimum conditions were able to provide accurate mean coefficients of thermal expansion (CTEs) of dense yettria- stabilized zirconia (YSZ) from the thin specimens with the thickness down to 0.3mm. In addition, it showed good reproducibility with small measurement error less than 5%. This modified TMA was also assured to be able to accurately evaluate CTEs and sintering behavior of plasma-sprayed YSZ from 0.3mm-thick specimens. Therefore, we actually used this method to explore the influence of annealing on thermal expansion behavior of the YSZ coating. As a result, the modified TMA measurements detected a slightly monotonie decrease in CTE with annealing.

AB - We aim at industrial standardization of a testing method for thermal expansion behavior of thermal barrier coatings (TBCs). A push-rod type thermomechanical analysis (TMA) was selected as a widely used method, and was examined whether to evaluate accurate thermal expansion behavior from a thin specimen with the thickness of practical TBCs. We first demonstrated that the TMA measurements with a specimen support and optimum conditions were able to provide accurate mean coefficients of thermal expansion (CTEs) of dense yettria- stabilized zirconia (YSZ) from the thin specimens with the thickness down to 0.3mm. In addition, it showed good reproducibility with small measurement error less than 5%. This modified TMA was also assured to be able to accurately evaluate CTEs and sintering behavior of plasma-sprayed YSZ from 0.3mm-thick specimens. Therefore, we actually used this method to explore the influence of annealing on thermal expansion behavior of the YSZ coating. As a result, the modified TMA measurements detected a slightly monotonie decrease in CTE with annealing.

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BT - Expanding Thermal Spray Performance to New Markets and Applications - Proceedings of the 2009 International Thermal Spray Conference, ITSC 2009

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Y2 - 4 May 2009 through 7 May 2009

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Thermomechanical evaluation and thermal expansion behavior of plasma-sprayed thermal barrier coatings

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