耐環境コーティングの微視組織と機械的特性に及ぼす高温曝露の影響

中村 龍之介; 山崎 泰広; 山岸 郷志; 岡崎 正和; 小川 和洋; 佐藤 和人

doi:10.1299/jsmemm.2017.OS0810

2017

Session ID : OS0810

DOI https://doi.org/10.1299/jsmemm.2017.OS0810

Conference information

Host: The Japan Society of Mechanical Engineers

Name : [in Japanese]

Date : October 07, 2017 - October 09, 2017

Effect of High Temperature Aging on Microstructure and Mechanical Properties in an Environmental Barrier Coating

Ryunosuke NAKAMURA, *Yasuhiro YAMAZAKI, Satoshi YAMAGISHI, Masakazu OKAZAKI, Kazuhiro OGAWA, Kazuto SATOU

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Keywords: Envorinmental Barriar coatings, Pore strucuture, High tepmperature aging

CONFERENCE PROCEEDINGS FREE ACCESS

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Abstract

In order to develop the environmental barrier coating for ceramic matrix composite, effect of high temperature aging on the pore structure and the mechanical properties of an atmospheric plasma sprayed Mullite (3Al₂O₃-SiO₂) coating and BSAS (BaO-SrO-Al₂O₃-2SiO₂) coating was investigated. In this study, the free-standing Mullite and BSAS coating specimens were prepared and the cross-sectional SEM observation was carried out to analyze the pore structure of coating. The elastic modulus and the fracture strength of the coatings were evaluated by means of the micro-indentation test.

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