Characterisation of the spatial variability of material properties of Gilsocarbon and NBG-18 using random fields

Abstract

☆ This manuscript has been authored by UT-Battelle, LLC, under contract DE-AC05-00OR22725 with the US Department of Energy (DOE). The US government retains and the publisher, by accepting the article for publication, acknowledges that the US government retains a nonexclusive, paid-up, irrevocable, worldwide license to publish or reproduce the published form of this manuscript, or allow others to do so, for US government purposes. DOE will provide public access to these results of federally sponsored research in accordance with the DOE Public Access Plan (http://energy.gov/downloads/doe-public-access-plan). Characterisation of the spatial variability of material properties of Gilsocarbon and NBG-18 using random fields ☆

Microstructural characterization data of as received IG-110, 2114 and ETU-10 nuclear graphite grades and oxidation characterization data of IG-110

“…These sources of variability in the graphite materials make each grade unique. Microstructural and property variations are also expected across large components of graphite [2 , 3] . Overall descriptions of the phases of graphite and micrographs in Fig.…”

SEM and TEM data of nuclear graphite and glassy carbon microstructures

“…The size and nature of filler particles can introduce significant variations to the mechanical properties of graphite. Previous research has shown that a graphite component can have different properties at different locations within the component [2 , 3] . Grain size or filler particle size can also influence graphite's fracture roughness with coarser grades yielding greater fracture roughness [4] .…”

Report on initial development of a database of nuclear graphite characteristics based on microstructural characterization

“…Manufacturing methods and raw materials can affect graphite's heterogeneity and microstructural characteristics. Even with similar production conditions and raw materials, material variability can be present within a billet, between billets, and between different batches of graphite [50,51]. This part of the project will assess batch-to-batch intervariability using PCEA graphite.…”