テラヘルツ波の反射測定による遮熱コーティングのトップコート屈折率・膜厚測定

カテゴリ: 論文誌(論文単位)

グループ名: 【A】基礎・材料・共通部門

発行日: 2012/09/01

タイトル(英語): Measurement of Refractive Index and Thickness of Topcoat of Thermal Barrier Coating by Reflection Measurement of Terahertz Waves

著者名: 福地　哲生（(財) 電力中央研究所），布施　則一（(財) 電力中央研究所），岡田　満利（(財) 電力中央研究所），藤井　智晴（(財) 電力中央研究所），水野　麻弥（(独) 情報通信研究機構），福永　香（(独) 情報通信研究機構）

著者名(英語): Tetsuo Fukuchi (Central Research Institute of Electric Power Industry), Norikazu Fuse (Central Research Institute of Electric Power Industry), Mitsutoshi Okada (Central Research Institute of Electric Power Industry), Tomoharu Fujii (Central Research Institute of Electric Power Industry), Maya Mizuno (National Institute of Information and Communications Technology), Kaori Fukunaga (National Institute of Information and Communications Technology)

キーワード: テラヘルツ波，イットリア安定化ジルコニア，屈折率，膜厚，遮熱コーティング，トップコート　　terahertz waves，yttria stabilized zirconia，refractive index，layer thickness，thermal barrier coating，topcoat

要約(英語): A method to determine the refractive index and thickness of topcoat of thermal barrier coating (TBC) from the reflected waveforms of terahertz waves was developed. The method was applied to specimens of yttria stabilized zirconia (YSZ), which is the topcoat material. The obtained refractive index was in agreement with that obtained by time-domain terahertz spectroscopy in a transmission configuration, and the obtained thickness was in agreement with measurement results using a contact thickness gauge. The method was also applied to a TBC specimen, and the planar distribution of the refractive index and thickness of the topcoat were obtained. The obtained thickness was in agreement with microscope observation of the cross section of the specimen. The results show that reflection measurement of terahertz waves is useful for nondestructive testing of TBC applied to gas turbine blades.

本誌: 電気学会論文誌A（基礎・材料・共通部門誌） Vol.132 No.9 （2012） 特集：テラヘルツ波

本誌掲載ページ: 702-708 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejfms/132/9/132_702/_article/-char/ja/