Lattice Deformation
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Related Articles from SNS
Crystal Shape and Lattice Deformation in Powder Diffraction
arXiv:2606.09319v1 Announce Type: cross Abstract: Accurate modelling of diffraction peak shapes is essential for extracting microstructural information from nanocrystalline materials. Common-volume functions are widely used to describe finite-size and shape broadening in powder diffraction, but analytical expressions are available only for a limited set of ideal geometries. Here, we introduce a generalized Fourier-based framework in which crystal-domain shape deformation, lattice...
Deformation Gradient Tensor Model of Roll-Spiral Transformation for Protein Assembly Refractile Body
Spiral geometries commonly occur in natural and engineered systems and are fundamentally described by curvature and torsion. In deformation-dominated systems, these variables evolve dynamically, requiring a continuum mechanical framework to link geometry and deformation. This study focused on refractile bodies (R-bodies), protein supramolecular assemblies that undergo reversible roll-spiral transformations in response to stimuli such as pH changes.
Hydrogen-induced lattice cohesion weakening favors atomic displacement
Announce Type: cross Abstract: Atomic displacement -- the fundamental process underlying diverse deformation and damage phenomena in metals, from irradiation defect production to stress-driven dislocation motion -- is governed by interatomic cohesion strength. Here, lattice-dissolved hydrogen (LDH) occurring in metals under direct hydrogen exposure is identified to effectively weaken lattice cohesion, and thereby facilitating atomic displacement and dislocation movement upon plastic...
Strain creates moiré 2D materials without twisting or stacking, opening more scalable route
Strain creates moiré 2D materials without twisting or stacking, opening more scalable route Lisa Lock Scientific Editor Robert Egan Associate Editor Cornell researchers have developed a new way to create moiré patterns—atomic-scale structures that can give materials unusual quantum behaviors—without relying on the traditionally used difficult-to-control twisting and stacking methods. The study is published in the Proceedings of the National Academy of Sciences. Why moiré materials matter...