|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||Nanostructured Materials for Nuclear Applications
||Phase-field Modeling of Helium Precipitates at Solid-state Interfaces
||Dina Yuryev, Michael J Demkowicz
|On-Site Speaker (Planned)
While interfaces are often considered featureless dividing planes between neighboring solids, many in fact have an internal nanostructure that gives rise to non-uniform properties, such as position-dependent He precipitation. We describe a phase-field model for simulating the growth, coalescence, and subsequent stability of He precipitates on planar interfaces with non-uniform He precipitate distributions. Our work leads to interface design criteria that predict whether stable linear channels of He precipitates form for a given interface structure. Such channels may avert He-induced damage by providing routes for controlled He outgassing. These criteria are used to design and test nanoscale multilayered metallic composites with increased resistance to He damage for fusion reactor applications.
||Planned: A print-only volume