Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

Y. Xu; H. B. Guo; H. Murakami; S. Kuroda; M. Yamazaki

Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

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

^*Corresponding author for this work

School of Materials Science and Engineering

National Institute for Materials Science Tsukuba

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

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.

Original language	English
Title of host publication	Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18
Pages	393-402
Number of pages	10
State	Published - 2010
Event	30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18 - Pittsburgh, PA, United States Duration: 29 Aug 2009 → 2 Sep 2009

Publication series

Name	Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18

Conference

Conference	30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18
Country/Territory	United States
City	Pittsburgh, PA
Period	29/08/09 → 2/09/09

Cite this

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

Xu, Y. ; Guo, H. B. ; Murakami, H. et al. / 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 (Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18).

@inproceedings{c92a3535ad4d47e5bb244a346a39ea24,

title = "Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings",

abstract = "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.",

author = "Y. Xu and Guo, \{H. B.\} and H. Murakami and S. Kuroda and M. Yamazaki",

year = "2010",

language = "英语",

isbn = "9781605950150",

series = "Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18",

pages = "393--402",

booktitle = "Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18",

note = "30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18 ; Conference date: 29-08-2009 Through 02-09-2009",

}

Xu, Y, Guo, HB, Murakami, H, Kuroda, S & Yamazaki, M 2010, Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. in Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18. 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, 29/08/09.

Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings. / Xu, Y.; Guo, H. B.; Murakami, H. et al.
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 (Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

AU - Xu, Y.

AU - Guo, H. B.

AU - Murakami, H.

AU - Kuroda, S.

AU - Yamazaki, M.

PY - 2010

Y1 - 2010

N2 - 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.

AB - 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.

UR - https://www.scopus.com/pages/publications/79952381006

M3 - 会议稿件

AN - SCOPUS:79952381006

SN - 9781605950150

T3 - Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18

SP - 393

EP - 402

BT - Proceedings of the 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18

T2 - 30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18

Y2 - 29 August 2009 through 2 September 2009

ER -

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

Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

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