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Advanced Radiation-Resistant Ceramic Composites



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Advances in Science and Technology Vol 45 2006 pp 1915 1924 online at http www scientific net 2006 Trans Tech Publications Switzerland Advanced Radiation Resistant Ceramic Composites Y Katoh1 a L L Snead1 b T Nozawa1 c N B Morley2 d W E Windes3 e 1 Oak Ridge National Laboratory P O Box 2008 Oak Ridge Tennessee 37831 6138 USA 2 University of California Los Angeles California USA 3 Idaho National Laboratory Idaho Falls Idaho USA a katohy ornl gov bsneadll ornl gov cnozawat ornl gov dmorley fusion ucla edu e william windes inl gov Keywords Ceramic matrix composite silicon carbide radiation effect fusion energy nuclear materials Abstract Ceramic matrix composites CMC s particularly silicon carbide SiC fiber reinforced SiC matrix SiC SiC composites have been studied for advanced nuclear energy applications for more than a decade The perceived potentials for advanced SiC SiC composites include the ability to operate at temperature regimes much higher than heat resistant alloys the inherent low inducedactivation nuclear properties and the tolerance against neutron irradiation at high temperatures This paper reviews the recent research and development of the advanced radiation resistant SiC SiC composites for nuclear applications Additionally remaining general and specific technical issues for SiC SiC composites for nuclear applications are discussed Introduction Among various refractory engineering materials silicon carbide SiC fiber reinforced SiCmatrix SiC SiC ceramic composites have been studied and developed for fusion and advanced fission energy applications due to the attractiveness based on the excellent irradiation tolerance and safety features such as the inherent low activation low decay heat properties and low tritium permeability in addition to the other well perceived thermo physical chemical properties 1 4 Benefiting from non nuclear programs that pursued issues such as manufacturing technology and testing development the research and development R D efforts



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