Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

Y. Xu, H. B. Guo, Hideyuki Murakami, S. Kuroda, M. Yamazaki

研究成果: Conference contribution

抄録

Pores included in plasma-sprayed zirconia coatings have been classified into four types: inter-splat cracks, globular pores, segment cracks and branch cracks, according to the dimension, geometry and formation mechanism of the pores. Thermal conductivities of three samples produced under different atmospheric plasma spraying conditions with similar total porosity but different volume fractions of each type of pores were measured. Different thermal conductivities were observed. Dependences of thermal conductivity on volume fraction of each type of pores and the geometry of the pores were simulated by a multi-stepped finite element method, which shows that effect of pores on thermal conductivity depends on the shape and dimension of the pores.

元の言語English
ホスト出版物のタイトルProceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18
ページ393-402
ページ数10
出版物ステータスPublished - 2010 12 1
外部発表Yes
イベント30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18 - Pittsburgh, PA, United States
継続期間: 2009 8 292009 9 2

Other

Other30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18
United States
Pittsburgh, PA
期間09/8/2909/9/2

Fingerprint

thermal conductivity
Zirconia
coating
Thermal conductivity
Plasmas
plasma
Coatings
crack
Cracks
Volume fraction
geometry
Plasma spraying
Geometry
formation mechanism
finite element method
Porosity
porosity
Finite element method

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

これを引用

Xu, Y., Guo, H. B., Murakami, H., Kuroda, S., & Yamazaki, M. (2010). Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. : Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18 (pp. 393-402)

Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. / Xu, Y.; Guo, H. B.; Murakami, Hideyuki; Kuroda, S.; Yamazaki, M.

Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18. 2010. p. 393-402.

研究成果: Conference contribution

Xu, Y, Guo, HB, Murakami, H, Kuroda, S & Yamazaki, M 2010, Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. : Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18. pp. 393-402, 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18, Pittsburgh, PA, United States, 09/8/29.
Xu Y, Guo HB, Murakami H, Kuroda S, Yamazaki M. Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. : Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18. 2010. p. 393-402
Xu, Y. ; Guo, H. B. ; Murakami, Hideyuki ; Kuroda, S. ; Yamazaki, M. / Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18. 2010. pp. 393-402
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