A Study of SiC/SiC Fiber Composite Stability in Thermochemical Conditions Relevant to Fusion Technology
Fusion Science and Technology / Volume 26 / Number 3P2 / November 1994 / Pages 481-485
Fusion Material and Plasma-Facing Component / Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 / dx.doi.org/10.13182/FST94-A40202
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In this paper some results of a study on the compatibility of SiC/SiC fiber ceramic composite with Li2O in fusion-relevant conditions are presented. The compatibility experiments were carried out at 800°C in flowing helium (0.1 L/min) containing 0.1% hydrogen. In these conditions, specimens of composite were kept in contact with Li2O under a static pressure of 20000 Pa for 2232 h in a chamber made of Inconel 600. Both as-received and exposed SiC/SiC specimens have been characterized. The results obtained demonstrate that SiC/SiC ceramic composite is chemically corroded only on the surface in these conditions and that its main physicochemical characteristics are not appreciably affected.
