Abstract
Finite element method was used to simulate thermal barrier coatings and calculate the stresses caused by the mismatching of the thermal expansion coefficient between the ceramic and metal materials, and also by the temperature gradient. According to this, the selection of the thermal expansion coefficient of the bond coating was concluded. We also modeled thermal barrier coatings with gradated a bond coating, and calculated the stress based on it. The stress in the graded thermal barrier coatings is obviously less than that in double layer thermal barrier coating system.
| Original language | English |
|---|---|
| Pages (from-to) | 638-639 |
| Number of pages | 2 |
| Journal | Xiyou Jinshu Cailiao Yu Gongcheng/Rare Metal Materials and Engineering |
| Volume | 34 |
| Issue number | SUPPL. 1 PART 2 |
| State | Published - Jun 2005 |
Keywords
- Stresses, finite element method
- Temperature gradient
- Thermal barrier coatings
- Thermal expansion coefficient
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