Abstract
ZrO2-4mol% Y2O3 (YSZ) coatings were deposited by EB-PVD. The YSZ coatings consist of porous-columnar structure containing nano pores and intercolumnar gaps between columnar grains. The laser flash method and differential scanning calorimeter were used to measure the thermal diffusivity and specific heat of the coated samples. The thermal conductivity of EB-PVD coatings decreased with increasing measuring temperature as well as porosity. The thermal conductivity of the coating layer alone was also calculated based on thermal diffusion results for the double layers specimens consisting of the combined coatings and substrate. The response function method was employed to obtain an accurate value for the thermal conductivity of the coatings layer. The thermal conductivity of coatings layer showed increasing tendency with increasing the coatings thickness.
| Original language | English |
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| Title of host publication | Advanced Ceramic Coatings and Interfaces II - A Collection of Papers Presented at the 31st International Conference on Advanced Ceramics and Composites |
| Pages | 115-123 |
| Number of pages | 9 |
| Volume | 28 |
| Edition | 3 |
| Publication status | Published - 2008 Aug 21 |
| Event | 31st International Conference on Advanced Ceramics and Composites - Daytona Beach, FL, United States Duration: 2007 Jan 21 → 2007 Jan 26 |
Other
| Other | 31st International Conference on Advanced Ceramics and Composites |
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| Country/Territory | United States |
| City | Daytona Beach, FL |
| Period | 07/1/21 → 07/1/26 |
ASJC Scopus subject areas
- Ceramics and Composites