The relationship between microcracking and mechanical properties in neutron-irradiated beryllium oxide

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dc.contributor.authorHanna, GLen_AU
dc.contributor.authorStevens, GTen_AU
dc.contributor.authorHickman, BSen_AU
dc.date.accessioned2007-11-22T04:19:30Zen_AU
dc.date.accessioned2010-04-30T04:29:55Zen_AU
dc.date.available2007-11-22T04:19:30Zen_AU
dc.date.available2010-04-30T04:29:55Zen_AU
dc.date.issued1964-08en_AU
dc.description.abstractBeryllium oxide bend test specimens of two grain sizes, 1—2 microns and 8—35 microns, were irradiated to fast neutron doses of up to 5 .6 x 1020 nvt (above 1 MeV) at 75 — 100ºC. Specimens were examined by X—ray line breadth (30.0 reflection), modulus of rupture, elastic modulus, open porosity, and lattice parameter measurements. The results show that there is no significant change in mechanical properties up to the dose at which microcracking is first observed i.e. .5 x 1020 nvt in the case of the fine grain size material and 1.2 x 1020 nvt in the case of the coarse grain size material. Above these doses the modulus of rupture and the apparent elastic constants fall rapidly. Microcracking occurred at an earlier dose in both materials than would have been expected from earlier work.en_AU
dc.identifier.citationHanna, G. L., Stevens, G. T., & Hickman, B. S. (1964). The relationship between microcracking and mechanical properties in neutron-irradiated beryllium oxide. (AAEC/E127). Lucas Heights, NSW: Australian Atomic Energy Commission.en_AU
dc.identifier.govdoc191en_AU
dc.identifier.otherAAEC-E-127en_AU
dc.identifier.placeofpublicationLucas Heights, New South Walesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/333en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Atomic Energy Commissionen_AU
dc.subjectCrackingen_AU
dc.subjectMechanical propertiesen_AU
dc.subjectBeryllium oxidesen_AU
dc.subjectIrradiationen_AU
dc.subjectNeutronsen_AU
dc.subjectDosesen_AU
dc.titleThe relationship between microcracking and mechanical properties in neutron-irradiated beryllium oxideen_AU
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