The hardening effects of focused ion beam (FIB) induced damage produced during the
fabrication of micropillars are examined by introducing a surface layer of nanosized …

Micron-sized aluminum pillars, fabricated by focused-ion beam milling, were subjected to
compression in a nanoindenter using a flat-ended tip to examine their deformation behavior …

We present a computational study on the effects of sample size on the strength and plastic
flow characteristics of micropillars under compression loading. We conduct three …

Recent experiments have shown an unexpected strong size effect in uniaxial compression
tests of metallic micro-pillars, such as the flow stress increases with decreasing pillar …

Focused ion beam (FIB) milling is the typical method used to fabricate micropillars to study
small-scale plasticity and size effects in uniaxial compression. However, FIB milling can …

Recent micropillar experiments have shown strong size effects at small pillar diameters. This
“smaller is stronger” phenomenon is widely believed to involve dislocation motion, which …

Silicon is brittle at ambient temperature and pressure, but using micro-scale samples
fabricated by focused ion beam (FIB) plasticity has been observed. However, typical …

Understanding the plasticity and strength of crystalline materials in terms of the dynamics of
microscopic defects has been a goal of materials research in the last 70 years. The size …

We perform three-dimensional dislocation dynamics simulations of solid and annular pillars,
having both free-surface boundary conditions, or strong barriers at the outer and/or inner …

In-situ transmission electron microscopy (TEM) annealing of submicron Al pillars (∼ 300–
450 nm in diameter) fabricated by focused ion beam (FIB) shows that the dislocation loops …