Abstract
SiC fiber reinforced SiC ceramic matrix composite (SiC^F/SiC-CMC) is a candidate material for the hot section of the future gas turbine. We are developing and improving the SiC^F/SiC-CMC for the combustor liner of the industrial gas turbine which is required at least several thousands duration. Protecting the interface layer between fiber and matrix, such as carbon or BN for SiC^F/SiC-CMC, from oxidation is thought to be an effective to increase the lifetime of CMC in ambient atmosphere. We applied BaO-Al_2O_3-SiC_2 glass to the SiC^F/SiC-CMC as an oxidation inhibiter, which fills the pre-existing cracks in the CMC at elevated temperature, and evaluated the oxidation characteristics, and durability of the SiC^F/SiC-CMC compared with a composite with no glass added.
Published Version
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