Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)

Microcracks with varied length and width are observed in nuclear grade graphite and highly oriented pyrolytic graphite (HOPG) by transmission electron microscopy. In situ observations show that these cracks tend to close up on heating the sample. The crystal dimensional change from in situ electron-...

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Main Authors: Wen, K, Marrow, J, Marsden, B
Format: Conference item
Published: 2008
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author Wen, K
Marrow, J
Marsden, B
author_facet Wen, K
Marrow, J
Marsden, B
author_sort Wen, K
collection OXFORD
description Microcracks with varied length and width are observed in nuclear grade graphite and highly oriented pyrolytic graphite (HOPG) by transmission electron microscopy. In situ observations show that these cracks tend to close up on heating the sample. The crystal dimensional change from in situ electron-irradiation also causes the closure of the cracks. Although some of the cracks may be identifiable as accommodation porosity (i.e. Mrozowski cracks), others appear to have already formed prior to carbonization and graphitization. © 2008 Elsevier B.V. All rights reserved.
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spelling oxford-uuid:5cf9adf1-8cb4-4196-ba9a-3029c2e729f72022-03-26T17:31:29ZMicrocracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)Conference itemhttp://purl.org/coar/resource_type/c_5794uuid:5cf9adf1-8cb4-4196-ba9a-3029c2e729f7Symplectic Elements at Oxford2008Wen, KMarrow, JMarsden, BMicrocracks with varied length and width are observed in nuclear grade graphite and highly oriented pyrolytic graphite (HOPG) by transmission electron microscopy. In situ observations show that these cracks tend to close up on heating the sample. The crystal dimensional change from in situ electron-irradiation also causes the closure of the cracks. Although some of the cracks may be identifiable as accommodation porosity (i.e. Mrozowski cracks), others appear to have already formed prior to carbonization and graphitization. © 2008 Elsevier B.V. All rights reserved.
spellingShingle Wen, K
Marrow, J
Marsden, B
Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title_full Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title_fullStr Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title_full_unstemmed Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title_short Microcracks in nuclear graphite and highly oriented pyrolytic graphite (HOPG)
title_sort microcracks in nuclear graphite and highly oriented pyrolytic graphite hopg
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AT marrowj microcracksinnucleargraphiteandhighlyorientedpyrolyticgraphitehopg
AT marsdenb microcracksinnucleargraphiteandhighlyorientedpyrolyticgraphitehopg