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Barrier‐Type anodic films on aluminium in aqueous borate solutions: 1—Film density and stopping power of anodic alumina films for alpha particles
Author(s) -
Skeldon P.,
Shimizu K.,
Thompson G. E.,
Wood G. C.
Publication year - 1983
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.740050605
Subject(s) - stopping power , aluminium , aqueous solution , boron , anode , analytical chemistry (journal) , chemistry , materials science , ion , metallurgy , organic chemistry , electrode , chromatography
Stopping powers of an anodic film, formed on aluminium in aqueous ammonium pentaborate solution, have been measured experimentally for α particles, over the energy range 0.7–2.3 MeV. Comparison between the measured stopping powers and theoretically calculated values shows that Bragg's Rule may be applied, with reasonable accuracy (∼5%), to predict the stopping powers of anodic alumina. The density of the barrier‐type film was determined by Rutherford backscattering spectroscopy to be 3.10±0.15 × 10 3 kg m −3 .