The interaction of proton irradiation with Zr textured microstructure
作者： Christopher Race , Alexandra Adrych-Brunning
DOI: 10.1016/J.JNUCMAT.2021.152808
关键词: Microstructure 、 Irradiation 、 Zone axis 、 Channelling 、 Materials science 、 Molecular physics 、 Crystal 、 Proton 、 Texture (crystalline) 、 Range (particle radiation)
摘要: Abstract Proton irradiation is commonly used as a surrogate for neutrons in experimental studies of structural materials thermal reactors, such Zr alloys. The proton beam unidirectional which requires choice to be made about the direction relative sample. will determine what lattice orientations protons predominantly interact with, particularly sample with strong texture. Since can channelled orientation crystal affect energy deposition and implantation range. We have therefore investigated degree high channelling found strongly textured Zr. find that near low-index directions like 〈 1 2 ¯ 0 〉 zone axis encourage higher compared other split-basal Channelling these change by 40%. Our results show care must taken when quantifying damage samples using single grain orientation. To compensate effects, from ion should quantified averaging across many different orientations, especially temperature bulk less than 300 K.
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