Composite Fuel (cermet, cercer)*

Meyer, M. K.

doi:10.1016/b978-0-08-056033-5.00058-6

Cited by 4 publications

(2 citation statements)

References 81 publications

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“…Schematic representations of (a) composite fuel and (b) composite fuel using a multilayer coated fuel particle in which the coating acts as a buffer layer between the fuel particle and the matrix material. Reproduced from Meyer).…”

Section: Future Nuclear Applications Of Ceramicsmentioning

confidence: 99%

“…(C) Composite Fuels: Composite fuels consisting of a fissile phase dispersed in an inert, nonfuel matrix have been developed for high temperature and/or high power density applications such as for material test reactors, isotope producing reactors and reactors developed for both power generation and propulsion in space. 106 Composite fuels with inert matrices [so-called inert matrix fuels (IMFs)] under development for destruction of Pu and MA will be discussed in Section III(1)(D). The two main composite fuels are CERMETS consisting of ceramic fuel particles dispersed in a metal matrix and CERCERS consisting of ceramic fuel particles dispersed in a ceramic matrix.…”

Section: July 2013mentioning

confidence: 99%

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Opportunities for Advanced Ceramics and Composites in the Nuclear Sector

et al. 2013

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Ceramics have played a crucial role in the development of fission based nuclear power, in glass & glass composite high level wasteforms, in composite cements to encapsulate intermediate level wastes (ILW) and also for oxide nuclear fuels based on UO2 and PuO2/UO2 mixed oxides. They are also used as porous filters with the ability to absorb radionuclides (RN) from air and liquids and are playing a key role in the cleanup at Fukushima. Non‐oxides also find current fission applications including in graphite moderators and B4C control rods. Ceramics will continue to be significant in the near‐term expansion of nuclear power via next‐step developments of fuels with inert matrices or based on thoria and in wasteforms using alternative composite cements or single or multiphase ceramics that can host Pu & other difficult RN. Longer term advances for Generation IV reactors, which will operate at higher temperatures & with higher fuel burn‐up require innovative fuel developments potentially via carbides & nitrides or composite fuel systems. Novel non‐thermal (cement‐like) and thermal techniques are currently being developed to treat some of the difficult legacy wastes. Non‐thermally derived wasteforms developed from geopolymers, composite cements, hydroceramics, and phosphate‐bonded ceramics and thermally derived wasteforms made by Hot Isostatic Pressing and fluidized bed steam reforming (FBSR) as well as vitrification techniques based on cold crucible melting (CCM), Joule‐heater in‐container melting and plasma melting (PM) are described. Future developments in waste treatment will be based on separation technologies for partitioning individual RN along with design & construction of RN‐containing ceramic targets for inducing transmutation reactions. Near demonstration actinide‐hosting ceramic wasteforms including multiphase Synroc systems are described. Opportunities also exist for ceramics in structural applications in Generation IV reactors such as composite SiC/SiC and C/C for fuel cladding and control rods and MAX phases and ultrahigh‐temperature ceramics (UHTCs) may find near core fuel coating and cladding applications. Uses of ceramics in fusion reactor systems will be both functional (ceramic superconductors in magnet systems for plasma control and in Li silicate breeder blankets in tokamaks) and structural including as sapphire diagnostic windows, graphite diverters, and plasma facing C and UHTCs. In all these cases, performance is limited by poorly understood radiation damage and interface controlled processes, which demands a combined modeling/experimental approach.

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Section: Future Nuclear Applications Of Ceramicsmentioning

confidence: 99%

Section: July 2013mentioning

confidence: 99%