The creep of isostatically-pressed beryllium oxide.
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Date
1967-05
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Australian Atomic Energy Commission
Abstract
The creep in bending of polycrystalline isostatically-pres sed beryllium oxide has been studied in the temperature range 800°C to 1150°C for stresses up to 104 lb in the minimum creep rate was found to be linearly proportional to stress and the process was temperature — dependent with an activation energy of 100 kcal mole-1. Thus results were consistent with the Nabarro - Herring creep mechanism, the rate constant being 10-8 to 10-9 lb-1 in2 h-1. Probably the creep rate is controlled by an impurity and would be enhanced by neutron irradiation.
Description
Keywords
Beryllium oxides, Creep, Neutrons, Irradiation
Citation
Kelly. J. W. (1967). The creep of isostatically-pressed beryllium oxide (AAEC/E176). Lucas Heights, NSW: Australian Atomic Energy Commission.