書誌事項
- タイトル別名
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- Non-destructive Evaluation of Thermal Barrier Coatings by Terahertz Wave Technology
- テラヘルツハ ニ ヨル タイネツ コーティングザイ ノ ヒハカイ ヒョウカ
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抄録
Terahertz (THz) wave propagation behavior for yttria partially stabilized zirconia (YSZ) thermal barrier coatings, which were fabricated by atmospheric plasma spray deposition, was investigated using terahertz time domain spectroscopy in the frequency range of 0.1 ~ 6.3 THz. YSZ coating showed good transmittance for the applied frequency range. The group refractive index was evaluated from the detected wave in the reflection measurement. It was found that the coating thickness can be easily measured by knowing the refractive index and that strong correlation between the porosity of the coatings and the refractive index exists. Also the THz wave measurement was performed for the delaminated portion of the YSZ coatings and the feasibility to detect the delamination was investigated. A clear difference was found between the waveforms detected on the delaminated and bonded areas. The results suggested that the THz technology may be a promising non-destructive evaluation (NDE) technique for the thick ceramic coatings such as thermal barrier coatings.
収録刊行物
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- 非破壊検査
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非破壊検査 59 (10), 526-532, 2010
一般社団法人 日本非破壊検査協会
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詳細情報 詳細情報について
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- CRID
- 1390282681470150400
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- NII論文ID
- 10026731331
- 130004458107
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- NII書誌ID
- AN00208370
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- NDL書誌ID
- 10853405
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- ISSN
- 03675866
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- 抄録ライセンスフラグ
- 使用不可