Irradiation induced dimensional changes in bulk graphite: The theory
| Autor: | A.V. Subbotin, M.V. Arzhakov, S.V. Panyukov |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Condensed Matter - Materials Science
Nuclear and High Energy Physics Materials science Nuclear Theory Condensed Matter::Other Materials Science (cond-mat.mtrl-sci) FOS: Physical sciences Thermodynamics Nuclear Theory (nucl-th) Condensed Matter::Materials Science Crystallography Nuclear Energy and Engineering Physics::Atomic and Molecular Clusters General Materials Science Extrusion Irradiation Graphite Texture (crystalline) Physics::Chemical Physics Deformation (engineering) Nuclear theory |
| Zdroj: | Journal of Nuclear Materials. 439:72-83 |
| ISSN: | 0022-3115 |
| Popis: | Basing on experimental data on irradiation-induced deformation of graphite we introduced a concept of diffuse domain structure developed in reactor graphite produced by extrusion. Such domains are considered as random continuous deviations of local graphite texture from the global one. We elucidate the origin of domain structure and estimate the size and the degree of orientational ordering of its domains. Using this concept we explain the well known radiation-induced size effect observed in reactor graphite. We also propose a method for converting the experimental data on shape-change of finite-size samples to bulk graphite. This method gives a more accurate evaluation of corresponding data used in estimations of reactor graphite components lifetime under irradiation. 30 pages, 6 figures |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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