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Development and Evaluation of Ceramic Components for a Gas Turbine

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Abstract:

An 8000 kW class Hybrid Gas Turbine (HGT) project, administered by the New Energy and Industrial Technology Development Organization (NEDO), was completed in March 2004. The targets of this project were improvement in thermal efficiency and output power by using ceramic components, and early commercialization of the gas turbine system. The ceramic components were used for stationary parts subjected to high temperature. It became clear that silicon nitride material showed significant recession under combustion gas. Kyocera and Central Research Institute of Electric Power Industry developed new EBCs to suppress this recession. These EBCs were evaluated by exposure test, heat cycle test and actual HGT engine test. One of the EBCs showed slight defects after the actual engine tests. However, all EBCs showed high corrosion resistance and good adhesion. It was confirmed that the all EBCs worked effectively.

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Periodical:

Key Engineering Materials (Volumes 317-318)

Pages:

481-486

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.317-318.481

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Online since:

August 2006

Authors:

Takero Fukudome, Sazo Tsuruzono, Tetsuo Tatsumi, Yoshihiro Ichikawa, Tohru Hisamatsu, Isao Yuri

Keywords:

Ceramic, Environmental Barrier Coating, Gas Turbine, Multilayer Coating, Recession, Ytterbium Silicate, Zirconium Oxide

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© 2006 Trans Tech Publications Ltd. All Rights Reserved

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