The formation of helium cavities in coarse-grained materials produces hardening
proportional to the number density and size of the cavities and due to the interaction of …

The unique ability of grain boundaries to act as effective sinks for radiation damage plays a
significant role in nanocrystalline materials due to their large interfacial area per unit volume …

The use of ultrafine and nanocrystalline materials is a proposed pathway to mitigate
irradiation damage in nuclear fusion components. Here, we examine the radiation tolerance …

Due to their low sputtering yield, low intrinsic tritium retention, high melting point, and high
thermal conductivity, W and W alloys are promising candidates for the divertor region in a …

Using synchrotron X-ray micro-diffraction and Eigenstrain analysis the distribution of lattice
swelling near grain boundaries in helium-implanted polycrystalline tungsten is quantified …

Helium implantation can cause the formation of a helium gas-bubble superlattice in
crystalline materials. Experimental studies of the mechanical response of a material hosting …

The effect of helium-implantation-induced defects on deformation behaviour is examined by
comparing spherical nano-indents in unimplanted and helium-implanted regions of a …

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 …

We have investigated the effects of helium ion irradiation energy and sample temperature on
the performance of grain boundaries as helium sinks in ultrafine grained and nanocrystalline …

A series of helium (He) implantations with varying energies and doses were used to
introduce bubbles into interfaces in Cu/Mo, Cu/V and Cu/Nb nanolayered composites. Micro …