ArticleNature materials2021
Tension-compression asymmetry in amorphous silicon.
Article in Nature materials, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
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- Analyses of Stress-State-Dependent Ductile Damage and Fracture Behavior of Zirconium.Materials (Basel, Switzerland) · 2025Article
- Iterative sublattice amorphization facilitates exceptional processability in inorganic semiconductors.Nature materials · 2025Article
- Persistent homology elucidates hierarchical structures responsible for mechanical properties in covalent amorphous solids.Nature communications · 2025Article
- Identification of the glassy state in nanoparticles by transmission electron microscopy.Nature materials · 2025Article
- Reversible shuffle twinning yields anisotropic tensile superelasticity in ceramic GeSe.Nature nanotechnology · 2025Article
- Axial compression-induced post-buckling of nanotube films on copper nanopillars: a molecular dynamics study.Journal of molecular modeling · 2025Article
- Van der Waals semiconductor InSe plastifies by martensitic transformation.Science advances · 2024Article
- Modeling Strain Hardening of Metallic Materials with Sigmoidal Function Considering Temperature and Strain Rate Effects.Materials (Basel, Switzerland) · 2024Article
- Understanding Defects in Amorphous Silicon with Million-Atom Simulations and Machine Learning.Angewandte Chemie (International ed. in English) · 2024Article
- Microscopic mechanisms of pressure-induced amorphous-amorphous transitions and crystallisation in silicon.Nature communications · 2024Article
- How Amorphous Nanomaterials Enhanced Electrocatalytic, SERS, and Mechanical Properties.JACS Au · 2023Review
- A top-down strategy for amorphization of hydroxyl compounds for electrocatalytic oxygen evolution.Nature communications · 2022Article
- Gaussian Process Regression for Materials and Molecules.Chemical reviews · 2021Article
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10 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Hard and brittle materials usually exhibit a much lower strength when loaded in tension than in compression. However, this common-sense behaviour may not be intrinsic to these materials, but arises from their higher flaw sensitivity to tensile loading. Here, we demonstrate a reversed and unusually pronounced tension-compression asymmetry (tensile strength exceeds compressive strength by a large margin) in submicrometre-sized samples of isotropic amorphous silicon. The abnormal asymmetry in the yield strength and anelasticity originates from the reduction in shear modulus and the densification of the shear-activated configuration under compression, altering the magnitude of the activation energy barrier for elementary shear events in amorphous Si. In situ coupled electrical tests corroborate that compressive strains indeed cause increased atomic coordination (metallization) by transforming some local structures from sp
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