Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10634106 | Scripta Materialia | 2012 | 4 Pages |
Abstract
We report on a study of nanoscale He bubble precipitation and growth at a twist grain boundary in two face-centered cubic materials. Experimentally, the twist boundary in Au captures all the He in the sample, forming equal-sized bubbles at the dislocation intersection junctions. Simulations in Cu reveal a complex structure of the interface and different He pressure in the interface bubbles compared to bulk, providing an explanation for the high efficiency of the boundary to capture all the He in the sample.
Related Topics
Physical Sciences and Engineering
Materials Science
Ceramics and Composites
Authors
J. Hetherly, E. Martinez, Z.F. Di, M. Nastasi, A. Caro,