The Evaluation of Deformation and Fracture of Gilsocarbon Graphite Subject to Service Environments: Experimental and Modelling

B. Šavija; G.E. Smith; P.J. Heard; E. Sarakinou; J.E. Darnbrough; K.R. Hallam; E. Schlangen; P.E.J. Flewitt

doi:10.4028/www.scientific.net/KEM.754.91

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 754The Evaluation of Deformation and Fracture of...

The Evaluation of Deformation and Fracture of Gilsocarbon Graphite Subject to Service Environments: Experimental and Modelling

Abstract:

Commercial graphites are used for a wide range of applications. For example, Gilsocarbon graphite is used within the reactor core of Advanced Gas Cooled Reactors (UK) as a moderator. In service, the mechanical properties of the graphite are changed as a result of neutron irradiation induced defects and porosity arising from radiolytic oxidation. In this paper, we discuss measurements undertaken of mechanical properties at the micro-length-scale for virgin and irradiated material. These data provide the necessary inputs to an experimentally-informed model that predicts the deformation and fracture properties of Gilsocarbon graphite at the centimetrelength-scale. The results provide an improved understanding of how the mechanical properties and fracture characteristics of this type of graphite change as a result of exposure to the service environment.

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Periodical:

Key Engineering Materials (Volume 754)

Pages:

91-94

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.754.91

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Online since:

September 2017

Authors:

B. Šavija, G.E. Smith*, P.J. Heard, E. Sarakinou, J.E. Darnbrough, K.R. Hallam, E. Schlangen, P.E.J. Flewitt

Keywords:

Mechanical Properties, Multi-Scale Modelling, Neutron Irradiation, Nuclear Graphite

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References

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