Articles with "grain" as a keyword



Rock avalanche deposits store quantitative evidence on internal shear during runout

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Published in 2017 at "Geophysical Research Letters"

DOI: 10.1002/2017gl073774

Abstract: We investigated the quantitative effect of internal shear on grain breakage during rock-avalanche runout, by means of 38 ring-shear experiments on identical sand samples at different normal stresses, shear strains and shear-strain rates. We compared… read more here.

Keywords: internal shear; grain; rock avalanche; avalanche ... See more keywords

Grain‐ to multiple‐grain‐scale deformation processes during diffusion creep of forsterite + diopside aggregate: 2. Grain boundary sliding‐induced grain rotation and its role in crystallographic preferred orientation in rocks

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2017jb014255

Abstract: Polycrystalline samples composed of either tabular or equiaxed forsterite grains +diopside (5 and 20 vol %) were deformed with a grid etched onto the lateral surface. In Part 1 of this study, we identified grain boundary sliding… read more here.

Keywords: grain rotation; grain; diffusion creep; rotation ... See more keywords
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Mechanism of Dynamic Formation of Ultrafine Ferrite Grains during High Temperature Processing in Steel

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Published in 2017 at "Advanced Engineering Materials"

DOI: 10.1002/adem.201600778

Abstract: The grain refinement mechanism of ferrite dynamically transformed (DT) from austenite is investigated in a 10Ni–0.1C steel. For decades, it has been debated whether dynamic recrystallization (DRX) contributes to the grain refinement of DT ferrite.… read more here.

Keywords: ferrite; steel; ferrite grains; grain ... See more keywords

Relationships between Microstructural and Mechanical Performance on Example of an Air‐Hardening Steel

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Published in 2019 at "Advanced Engineering Materials"

DOI: 10.1002/adem.201900134

Abstract: Because of an excellent combination of strength and ductility, mono‐phase low‐alloyed steels with a bimodal grain size are an appropriate alternative to conventionally cold‐rolled and annealed steels as well as to steels with a dual‐phase… read more here.

Keywords: phase; air hardening; microstructure; steel ... See more keywords
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Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625

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Published in 2019 at "Advanced Engineering Materials"

DOI: 10.1002/adem.201900426

Abstract: Dynamic recrystallization (DRX) and grain growth behaviors of Inconel 625 alloy are investigated via hot compression test in the temperature range of 900-1200 degrees C and strain rate range of 0.01-10 s(-1). The electron backscatter… read more here.

Keywords: inconel 625; temperature; strain rate; grain growth ... See more keywords

Atomistic Modeling of Grain Boundary Migration in Nickel

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Published in 2020 at "Advanced Engineering Materials"

DOI: 10.1002/adem.202000115

Abstract: Herein, the molecular dynamics (MD) simulations of pure Ni crystallites are performed to show the influence of the grain boundary (GB) geometry on the values of the activation energy of GB migration. The considered systems… read more here.

Keywords: polycrystalline; atomistic modeling; modeling grain; migration ... See more keywords

Conjugated Polymer–Assisted Grain Boundary Passivation for Efficient Inverted Planar Perovskite Solar Cells

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Published in 2019 at "Advanced Functional Materials"

DOI: 10.1002/adfm.201808855

Abstract: Grain boundaries in lead halide perovskite films lead to increased recombination losses and decreased device stability under illumination due to defect-mediated ion migration. The effect of a conjugated polymer additive, poly(bithiophene imide) (PBTI), is investigated… read more here.

Keywords: inverted planar; perovskite solar; planar perovskite; conjugated polymer ... See more keywords

Direct Regeneration of Degraded High‐Nickel Layered Cathode with a Grain‐Growth Inhibitor by Epitaxial Boundaries

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202503261

Abstract: The direct regeneration of degraded cathode materials for lithium‐ion batteries holds significant promise for closed‐loop recycling. However, fully recovering the structure and performance of degraded LiNixCoyMnzO2 (NCM) cathodes remains a significant challenge, limiting its practical… read more here.

Keywords: cathode; grain growth; direct regeneration; grain ... See more keywords

Secondary Grain Growth of Perovskite Films Induced by a Phosphonate Derivative for High‐Performance Near‐Infrared Light–Emitting Diodes

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202504744

Abstract: Efficient charge injection and defect passivation remain pivotal challenges in developing high‐performance perovskite light–emitting diodes (PeLEDs). This study reports that [4‐(3,6‐Dimethyl‐9H‐carbazol‐9‐yl)butyl] phosphonic acid (Me‐4PACz) used as an interfacial modifier is capable of simultaneously reducing surface… read more here.

Keywords: perovskite films; emitting diodes; high performance; performance ... See more keywords

Micro‐Alloying Engineered Mg‐Gd‐Mn Negative Electrode With Synergistic Grain Refinement and Non‐Basal Texturing for Long‐Life and Dendrite‐Free Magnesium Batteries

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Published in 2025 at "Advanced Functional Materials"

DOI: 10.1002/adfm.202522185

Abstract: The inhomogeneous plating/stripping behavior and parasitic reactions of Mg metal negative electrode pose significant challenges to achieve the long‐term stability of rechargeable magnesium batteries, severely limiting their practical implementation in energy storage systems. In this… read more here.

Keywords: negative electrode; electrode; non basal; micro alloying ... See more keywords

A Polymerization-Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells.

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Published in 2020 at "Advanced materials"

DOI: 10.1002/adma.201907769

Abstract: Intrinsically, detrimental defects accumulating at the surface and grain boundaries limit both the performance and stability of perovskite solar cells. Small molecules and bulkier polymers with functional groups are utilized to passivate these ionic defects… read more here.

Keywords: polymerization; perovskite solar; assisted grain; grain ... See more keywords