Structure dependence of thermal conductivity of plasma-sprayed zirconia coatings

Y. Xu, H. B. Guo, H. 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.

本文言語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
出版ステータスPublished - 2010 12 1
外部発表はい
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

出版物シリーズ

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

Other

Other30th International Thermal Conductivity Conference and the 18th International Thermal Expansion Symposium, Thermal Conductivity 30/Thermal Expansion 18
CountryUnited States
CityPittsburgh, PA
Period09/8/2909/9/2

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

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