Abstract
This paper reports on the development of novel Ti-doped 3D carbon fibre composites (CFCs) and their performance when exposed to transient thermal loads (disruptions) in the electron beam facility JUDITH at different conditions. Depending on the applied load, the CFCs showed three steps of erosion: (i) breaking of PAN fibres with pull out from the surface; (ii) cracking and ablation of pitch fibres close to the interface of PAN/pitch fibre bundles; and (iii) finally, erosion of pitch fibres in the centre of the bundle. The addition of titanium carbide resulted in a significant improvement in thermal shock behaviour of these materials compared with undoped counterparts.
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