Title of article :
Ti-doped isotropic graphite: A promising armour material for plasma-facing components
Author/Authors :
Garcيa-Rosales، نويسنده , , C. and Lَpez-Galilea، نويسنده , , I. and Ordلs، نويسنده , , N. and Adelhelm، نويسنده , , C. and Balden، نويسنده , , M. and Pintsuk، نويسنده , , G. and Grattarola، نويسنده , , M. and Gualco، نويسنده , , C.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
4
From page :
801
To page :
804
Abstract :
Finely dispersed Ti-doped isotropic graphites with 4 at.% Ti have been manufactured using synthetic mesophase pitch ‘AR’ as raw material. These new materials show a thermal conductivity at room temperature of ∼200 W/mK and flexural strength close to 100 MPa. Measurement of the total erosion yield by deuterium bombardment at ion energies and sample temperatures for which pure carbon shows maximum values, resulted in a reduction of at least a factor of 4, mainly due to dopant enrichment at the surface caused by preferential erosion of carbon. In addition, ITER relevant thermal shock loads were applied with an energetic electron beam at the JUDITH facility. The results demonstrated a significantly improved performance of Ti-doped graphite compared to pure graphite. Finally, Ti-doped graphite was successfully brazed to a CuCrZr block using a Mo interlayer. These results let assume that Ti-doped graphite can be a promising armour material for divertor plasma-facing components.
Journal title :
Journal of Nuclear Materials
Serial Year :
2009
Journal title :
Journal of Nuclear Materials
Record number :
1366365
Link To Document :
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