Effect of plasma pretreatment on thermal durability of thermal barrier coatings in cyclic thermal exposure

Sang Won Myoung, Zhe Lu, Yeon Gil Jung, Byung Koog Jang, Young Soo Yoo, Seong Moon Seo, Baig Gyu Choi, Chang Yong Jo

研究成果: ジャーナルへの寄稿記事

2 引用 (Scopus)

抄録

Plasma pretreatment on the top and bond coats was performed and its influence on the thermal durability of thermal barrier coating (TBC) system was investigated through cyclic thermal exposure. Two types of bond coat were prepared by different methods, namely, air plasma spray (APS) and high-velocity oxy-fuel (HVOF), and two kinds of feedstock powder were employed for preparing the top coat in APS process. The better thermal durability was achieved in the vertically cracked TBC with the surface modified bond coat or with the bond coat prepared by APS process. The hardness and fracture toughness values of TBCs increased because of densification of the top coat during cyclic thermal exposure, and the bond coat prepared by HVOF process showed higher values than that by APS process. The TBCs with the surface modified bond coat were more efficient in improving adhesive strength than those without plasma pretreatment on the bond coat. The relationship between microstructure evolution and thermomechanical characteristics of TBCs with plasma pretreatment was discussed in cyclic thermal exposure.

元の言語英語
記事番号593891
ジャーナルAdvances in Materials Science and Engineering
2014
DOI
出版物ステータス出版済み - 2014

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Thermal barrier coatings
Durability
Plasmas
Air
Hot Temperature
Densification
Powders
Feedstocks
Fracture toughness
Adhesives
Hardness
Microstructure

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Engineering(all)

これを引用

Effect of plasma pretreatment on thermal durability of thermal barrier coatings in cyclic thermal exposure. / Myoung, Sang Won; Lu, Zhe; Jung, Yeon Gil; Jang, Byung Koog; Yoo, Young Soo; Seo, Seong Moon; Choi, Baig Gyu; Jo, Chang Yong.

:: Advances in Materials Science and Engineering, 巻 2014, 593891, 2014.

研究成果: ジャーナルへの寄稿記事

Myoung, Sang Won ; Lu, Zhe ; Jung, Yeon Gil ; Jang, Byung Koog ; Yoo, Young Soo ; Seo, Seong Moon ; Choi, Baig Gyu ; Jo, Chang Yong. / Effect of plasma pretreatment on thermal durability of thermal barrier coatings in cyclic thermal exposure. :: Advances in Materials Science and Engineering. 2014 ; 巻 2014.
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abstract = "Plasma pretreatment on the top and bond coats was performed and its influence on the thermal durability of thermal barrier coating (TBC) system was investigated through cyclic thermal exposure. Two types of bond coat were prepared by different methods, namely, air plasma spray (APS) and high-velocity oxy-fuel (HVOF), and two kinds of feedstock powder were employed for preparing the top coat in APS process. The better thermal durability was achieved in the vertically cracked TBC with the surface modified bond coat or with the bond coat prepared by APS process. The hardness and fracture toughness values of TBCs increased because of densification of the top coat during cyclic thermal exposure, and the bond coat prepared by HVOF process showed higher values than that by APS process. The TBCs with the surface modified bond coat were more efficient in improving adhesive strength than those without plasma pretreatment on the bond coat. The relationship between microstructure evolution and thermomechanical characteristics of TBCs with plasma pretreatment was discussed in cyclic thermal exposure.",
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AU - Myoung, Sang Won

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AU - Jung, Yeon Gil

AU - Jang, Byung Koog

AU - Yoo, Young Soo

AU - Seo, Seong Moon

AU - Choi, Baig Gyu

AU - Jo, Chang Yong

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