"A New Class od Functionally Graded Cearamic-Metal Composites for Next Generation Very High Temperature Reactors"

Dr. Mohit Jain ; Dr. Ganesh Skandan ; Dr. Gordon E. Khose ; Mrs. Judith Maro, Nuclear Reactor Laboratory, MIT

关键词: CERAMICS;    COMPOSITE MATERIALS;    IRRADIATION;    NEUTRONS;    PERFORMANCE;    PROCESSING;    REACTORS;    TESTING;    THERMODYNAMIC PROPERTIES Generation IV nuclear reactors;    Functionally graded;    Composite;    Refractory metal alloy;    Oxide and Non Oxide ceramic;    Radiation Resistance;   

DOI  :  10.2172/927780
RP-ID  :  DOE/ER/84629-Z
PID  :  OSTI ID: 927780
Others  :  Other: NEI 43049
Others  :  TRN: US1003285

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来源: SciTech Connect

【 摘 要 】

Generation IV Very High Temperature power generating nuclear reactors will operate at temperatures greater than 900 oC. At these temperatures, the components operating in these reactors need to be fabricated from materials with excellent thermo-mechanical properties. Conventional pure or composite materials have fallen short in delivering the desired performance. New materials, or conventional materials with new microstructures, and associated processing technologies are needed to meet these materials challenges. Using the concept of functionally graded materials, we have fabricated a composite material which has taken advantages of the mechanical and thermal properties of ceramic and metals. Functionally-graded composite samples with various microstructures were fabricated. It was demonstrated that the composition and spatial variation in the composition of the composite can be controlled. Some of the samples were tested for irradiation resistance to neutrons. The samples did not degrade during initial neutron irradiation testing.