| Autor: |
Yasuhiro Yamazaki, Keisuke Shinomiya, Tadaharu Okumura, Kenji Suzuki, Takahisa Shobu, Yuiga Nakamura |
| Jazyk: |
angličtina |
| Rok vydání: |
2023 |
| Předmět: |
|
| Zdroj: |
Quantum Beam Science, Vol 7, Iss 2, p 14 (2023) |
| Druh dokumentu: |
article |
| ISSN: |
2412-382X |
| DOI: |
10.3390/qubs7020014 |
| Popis: |
The suspension plasma spray (SPS) method is expected to become a novel coating method because it can achieve various microstructures using a suspension with submicron spray particles. Thermal barrier coatings (TBCs) with a columnar structure, which might achieve high strain tolerance, can be obtained using the SPS technique. This study evaluated the internal stress distribution of the suspension-plasma-sprayed thermal barrier coating (SPS-TBC) with different columnar structures using hybrid measurement using high-energy synchrotron X-ray diffraction analysis and laboratory low-energy X-rays. The relationship between the microstructure and the internal stress distribution of the SPS-TBC was discussed on the basis of the experimental results. In addition, the in-plane internal stress was decreased by decreasing the column diameter. The thin columnar microstructure of the SPS-TBC has superior strain tolerance. The internal stresses in the SPS-TBC are periodic decrements caused by stress relaxation in porous layers in its column. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
|
