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Fibre and interfacial properties measured in situ for a 3D woven SiC/SiC-based composite with glass sealant

1999; Elsevier BV; Volume: 30; Issue: 4 Linguagem: Inglês

10.1016/s1359-835x(98)00154-7

1878-5840

Ian J. Davies, Takashi Ishikawa, Masaki Shibuya, T. Hirokawa, Jun Gotoh,

Mechanical Behavior of Composites

In situ fibre strength Weibull parameters and fibre pullout length distributions were investigated for a 3D woven SiC/SiC-based composite with glass sealant oxidation protection system after tensile testing at 1000°C and 1200°C in air. Results were similar to those previously observed for unsealed specimens tested in vacuum (1200–1380°C), but significantly different from the case of unsealed specimens tested in air (1100–1200°C). Overall, it was concluded that the glass sealant provided excellent oxidation protection for the composite at the test conditions employed, i.e. short-term exposure up to 1200°C in air.