The In situ Compression of Annealed Molybdenum Nanopillars in the Transmission Electron Microscope

M Lowry - 2011 - escholarship.org
The In situ Compression of Annealed Molybdenum Nanopillars in the Transmission Electron
MicroscopebyMatthew LowryDoctor of Philosophy in Engineering-Materials Science and …

Mitigating Focused Ion Beam Damage in Molybdenum Nanopillars by In Situ Annealing

MB Lowry, D Kiener, MM LeBlanc… - Microscopy and …, 2010 - cambridge.org
The focused ion beam (FIB) allows for the machining of mechanical test specimens in a
variety of geometries from numerous different materials. Samples range in size from …

Size-dependent mechanical properties of molybdenum nanopillars

JY Kim, JR Greer - Applied Physics Letters, 2008 - pubs.aip.org
We report the deformation behavior of single crystalline molybdenum nanopillars in uniaxial
compression, which exhibits a strong size effect called the “smaller is stronger” …

Effect of pre-straining on the size effect in molybdenum pillars

AS Schneider, BG Clark, CP Frick… - Philosophical …, 2010 - Taylor & Francis
The effect of prior deformation on mechanical behavior as a function of size is investigated
for body-centered cubic (bcc) molybdenum (Mo) pillars. Experiments were performed using …

Achieving the ideal strength in annealed molybdenum nanopillars

MB Lowry, D Kiener, MM LeBlanc, C Chisholm… - Acta Materialia, 2010 - Elsevier
The theoretical strength of a material is the stress required to deform an infinite, defect-free
crystal. Achieving the theoretical strength of a material experimentally is hindered by the …

Dislocation avalanches in nanostructured molybdenum nanopillars

HW Hsiao, JH Huang, JM Zuo - … of Vacuum Science & Technology A, 2024 - pubs.aip.org
We investigate intermittent plasticity in nanopillars of nanocrystalline molybdenum based on
in situ transmission electron microscopy observations. By correlating electron imaging …

Direct electron imaging of dislocation activities in nanocrystalline molybdenum nanopillars

HW Hsiao, JM Zuo - Microscopy and Microanalysis, 2021 - cambridge.org
Nanocrystalline materials are widely used for their special properties, including structural
applications with high strength. The strength enhancement comes from the inhibited …

Influence of orientation on the size effect in BCC pillars with different critical temperatures.

E Arzt, PA Gruber, BG Clark, CP Frick… - Proposed for publication …, 2010 - osti.gov
The size effect in body-centered cubic metals is comprehensively investigated through
micro/nano-compression tests performed on focused ion beam machined tungsten (W) …

Comparing the strength of fcc and bcc sub-micrometer pillars: Compression experiments and dislocation dynamics simulations

JR Greer, CR Weinberger, W Cai - Materials Science and Engineering: A, 2008 - Elsevier
We compare mechanical strength of fcc gold and bcc molybdenum single crystal pillars of
sub-micrometer diameter in uniaxial compression tests. Both crystals show an increase of …

Crystallographic orientation and size dependence of tension–compression asymmetry in molybdenum nano-pillars

JY Kim, D Jang, JR Greer - International Journal of Plasticity, 2012 - Elsevier
Uniaxial tension and compression experiments on [001] and [011] oriented molybdenum
nano-pillars exhibit tension–compression asymmetry, a difference in attained stresses in …