Improvement of thermal shock resistance of isotropic graphite by Ti-doping

Ti-doped isotropic graphite is a promising candidate material for the strike point area of the ITER divertor due to its reduced chemical erosion by hydrogen bombardment and its high thermal shock resistance, mainly due the catalytic effect of TiC on the graphitization leading to an increase of therm...

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Bibliographic Details
Published in:Journal of nuclear materials 2009-04, Vol.386, p.805-808
Main Authors: López-Galilea, I., Ordás, N., García-Rosales, C., Lindig, S.
Format: Article
Language:English
Subjects:
Applied sciences
Bombardment
Carbonization
Controled nuclear fusion plants
Dwell time
Energy
Energy. Thermal use of fuels
Exact sciences and technology
Fission nuclear power plants
Fuels
Graphite
Graphitization
Installations for energy generation and conversion: thermal and electrical energy
Nuclear fuels
Shock resistance
Stabilization
Strikes
Titanium
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Summary:Ti-doped isotropic graphite is a promising candidate material for the strike point area of the ITER divertor due to its reduced chemical erosion by hydrogen bombardment and its high thermal shock resistance, mainly due the catalytic effect of TiC on the graphitization leading to an increase of thermal conductivity and to higher mechanical strength. Several manufacturing parameters such as oxidative stabilization treatment, carbonization cycle, graphitization temperature and dwell time during graphitization have been investigated in order to establish a relationship between these parameters and the final properties.
ISSN:0022-3115
1873-4820
DOI:10.1016/j.jnucmat.2008.12.227