Innovative materials for fusion power plant structures: separating functions.
J PHYS-CONDENS MAT
S2597 - S2621.
Fusion reactors create extreme conditions for structures close to the plasma. it seems unlikely that materials currently being considered can meet all performance requirements under such conditions. We explore the possibility of separating functionality in composite structures to overcome this barrier. To this end, several suggestions of directions are made for the search for such materials. In particular, we note some of the new materials that have become available only in the last two decades. Those discussed include the use of diamondlike carbon coatings, nano-structured materials, layered structures, stacked structures, and viscous coatings, including more complex carbon composite materials. Materials modelling will be an important component in the search for viable materials. However, the extreme conditions and the nature of the radiation damage demand extensions both to molecular dynamics and to the much-used Norgett-Robinson-Torrens model. We identify some of the relevant condensed matter challenges for modelling and materials testing in the fusion context, including the relevance of spallation source neutron testing to fusion materials evaluation.
|Title:||Innovative materials for fusion power plant structures: separating functions|
|Open access status:||An open access version is available from UCL Discovery|
|Additional information:||Text made available to UCL Discovery by kind permission of IOP Publishing, 2012|
|Keywords:||RESEARCH-AND-DEVELOPMENT, MECHANICAL-PROPERTIES, AMORPHOUS-CARBON, COPPER-ALLOYS, ELECTRONIC EXCITATIONS, DISPLACEMENT CASCADES, MARTENSITIC STEELS, DAMAGE CREATION, FERRITIC STEELS, NEUTRON SOURCE|
|UCL classification:||UCL > School of BEAMS > Faculty of Maths and Physical Sciences
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
UCL > School of BEAMS > Faculty of Maths and Physical Sciences > Physics and Astronomy
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