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Can I read Aging of ErT2 thin films: ERD analysis and mechanical property changes on EtoBox?
Aging of ErT2 thin films: ERD analysis and mechanical property changes by J.A. Knapp; J.F. Browning; G.M. Bond is a Engineering article available to read on EtoBox.
What is Aging of ErT2 thin films: ERD analysis and mechanical property changes about?
Rare earth tritide films evolve as tritium decays into 3 He, which forms bubbles that influence long-term film stability in applications such as neutron generators. We followed the properties of model ErT 2 films as they aged using ERD analysis to monitor T and 3 He profiles, nanoindentation testing for mechanical properties and transmission electron microscopy to characterize bubble growth. The profiles of T and 3 He are separately measured in ERD using a DE À E detector, taking advantage of the differences in energy loss within the DE detector. The composition measured by ERD followed the expected build-up of 3 He up to near critical release, where 3 He begins to escape from the film as bubbles overlap. These measurements complement observations of the changing mechanical properties of these films, where the observed behavior divided into two regimes: a substantial increase in layer hardness but elasticity little changed over $18 months, followed by a decrease in elastic stiffness and a modest decrease in hardness over the final 24 months. The evolution of properties has been explained by a combination of dislocation pinning by the bubbles, elastic softening as the bubbles occupy
Who reads Aging of ErT2 thin films: ERD analysis and mechanical property changes?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- J.A. Knapp; J.F. Browning; G.M. Bond
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0168-583X)
- Published
- 2010
- Language
- EN
- Field
- Engineering (Physical Sciences)