Publication
Cast aluminium single crystals cross the threshold from bulk to size-dependent stochastic plasticity
Publications associées (34)
Mapping orthorhombic domains with geometrical phase analysis in rare-earth nickelate heterostructures
Duncan Thomas Lindsay Alexander, Bernat Mundet, Jean-Marc Triscone
Most perovskite oxides belong to the Pbnm space group, composed of an anisotropic unit cell, A-site antipolar displacements, and oxygen octahedral tilts. Mapping the orientation of the orthorhombic unit cell in epitaxial heterostructures that consist of at ...
Melville2024Light emission properties of mechanical exfoliation induced extended defects in hexagonal boron nitride flakes
Anna Fontcuberta i Morral, Nicolas Tappy
Recently, hexagonal boron nitride (hBN) has become an interesting platform for quantum optics due to its peculiar defect-related luminescence properties. Concomitantly, hBN was established as the ideal insulating support for realizing 2D materials devices, ...
IOP Publishing Ltd2022Deformation twinning mechanism in magnesium at the microscale: strain rate, temperature and orientation effects
The project aims to validate some recent theoretical developments on the deformation twinning nucleation mechanism in HCP metals through small-scale mechanic experiments. To this end, a systematic investigation of the mechanical response of pure magnesium ...
EPFL2022Tailored deformation behavior of 304L stainless steel through control of the crystallographic texture with laser-powder bed fusion
Roland Logé, Christian Leinenbach, Efthymios Polatidis, Markus Strobl
Laser-powder bed fusion (L-PBF) has gained significant research interest, not only for its profound advantage of producing near-net shape complex geometries of metallic parts, but also for the possibility of producing tailored microstructures. Here we expl ...
ELSEVIER SCI LTD2022Hot rocks: Constraining the thermal conditions of the Mistastin Lake impact melt deposits using zircon grain microstructures
The production of superheated melt during hypervelocity impact events has been proposed to be a common occurrence on terrestrial planetary bodies. Recent direct evidence of superheated impact melt temperatures exceeding > 2370 degrees C from the Kamestasti ...
ELSEVIER2022Deformation-induced martensitic transformation under multiaxial loading
The deformation-induced martensitic transformation observed in specific materials can enhance their mechanical properties or result in functional properties. For example, the transformation induced plasticity (TRIP) effect results in a good combination of ...
EPFL2019Crystal Orientation and Grain Size: Do They Determine Optoelectronic Properties of MAPbI(3) Perovskite?
Sandy Sanchez Alonso, Ulf Anders Hagfeldt, Michael Saliba
Growing large, oriented grains of perovskite often leads to efficient devices, but it is unclear if properties of the grains are responsible for the efficiency. Domains observed in SEM are commonly misidentified with crystallographic grains, but SEM images ...
2019Competition between intragranular and intergranular deformation mechanisms in ODS ferritic steels during hot deformation at high strain rate
Oxide Dispersed Strengthened (ODS) ferritic stainless steels present well-known fine grains microstructures where dislocation movement is hindered by a dense precipitation of nano-oxides particles. Previous research, on the thermomechanical behavior at hig ...
Springer Verlag2017Structure of precipitates and orientation relationships in Al, Ge, Mo-doped higher manganese silicide crystals
Philippe Buffat, Marco Cantoni, Elena Suvorova Buffat
The structure of Al, Ge, Mo-doped Higher Manganese Silicide (HMS) crystals with the general formulas Mn(Si0.99Ge0.01)(1.75), Mn(Si0.995Ge0.005)(1.75) and (Mn0.98Mo0.02)(Si0.98Ge0.02)(1.75)Al-0.01 was investigated by scanning and transmission electr ...
Taylor & Francis Ltd2017Energetics and thermodynamics of α-iron from first-principles and machine-learning potentials
Iron is a material of fundamental importance in the industrial and economic processes of our society as it is the major constituent of steels. With advances in computational science, much progress has been made in the understanding of the microscopic mecha ...
EPFL2016