2014 Fiscal Year Final Research Report
Development of the high temperature evaluation method for interfacial damage of a thermal barrier coating system by resonance ultrasound spectroscopy
| Project/Area Number |
24560084
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Iwate University |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
OGI Hirotsugu 大阪大学, 基礎工学研究科, 准教授 (90252626)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Keywords | 遮熱コーティング / 弾性係数 / 損傷評価 / 共鳴超音波スペクトロスコピー / 高温 / はく離 / き裂 |
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| Outline of Final Research Achievements |
A new nondestructive evaluation method of the damage in a thermal barrier coating (TBC) system was developed. The method used the apparent change in the elastic moduli of a TBC if damaged by resonance ultrasound spectroscopy. First, the changes in the apparent elastic moduli of various damages were calculate by FEM. It was found that the change in the in-plane elastic modulus if a surface crack occurred was significant, and the crack depth and length were able to be evaluated using the change. It was also confirmed experimentally.
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| Free Research Field |
高温強度学
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