Articles with "grain boundary" as a keyword



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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
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Grain-Boundary "Patches" by In Situ Conversion to Enhance Perovskite Solar Cells Stability.

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Published in 2018 at "Advanced materials"

DOI: 10.1002/adma.201800544

Abstract: The power conversion efficiency of organic-inorganic hybrid perovskite solar cells has increased rapidly, but the device stability remains a big challenge. Previous studies show the grain boundary (GB) can facilitate ion migration and initiate device… read more here.

Keywords: grain boundary; perovskite solar; boundary patches; conversion ... See more keywords
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Grain-Boundary-Induced Drastic Sensing Performance Enhancement of Polycrystalline-Microwire Printed Gas Sensors.

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Published in 2019 at "Advanced materials"

DOI: 10.1002/adma.201804583

Abstract: The development of materials with high efficiency and stable signal output in a bent state is important for flexible electronics. Grain boundaries provide lasting inspiration and a promising avenue for designing advanced functionalities using nanomaterials.… read more here.

Keywords: grain boundary; boundary induced; induced drastic; sensing performance ... See more keywords
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Full‐Dimensional Grain Boundary Stress Release for Flexible Perovskite Indoor Photovoltaics

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202200320

Abstract: Perovskite photovoltaics are strong potential candidates to drive low‐power off‐grid electronics for indoor applications. Compared with rigid devices, flexible perovskite devices can provide a more suitable surface for indoor small electronic devices, enabling them have… read more here.

Keywords: flexible perovskite; indoor; grain boundary; stress release ... See more keywords
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Unraveling Thermodynamic and Kinetic Contributions to the Stability of Doped Nanocrystalline Alloys using Nanometallic Multilayers

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Published in 2022 at "Advanced Materials"

DOI: 10.1002/adma.202200354

Abstract: Targeted doping of grain boundaries is widely pursued as a pathway for combating thermal instabilities in nanocrystalline metals. However, certain dopants predicted to produce grain‐boundary‐segregated nanocrystalline configurations instead form small nanoprecipitates at elevated temperatures that… read more here.

Keywords: unraveling thermodynamic; thermodynamic kinetic; grain boundary; kinetic contributions ... See more keywords
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Flattening Grain‐Boundary Grooves for Perovskite Solar Cells with High Optomechanical Reliability

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Published in 2023 at "Advanced Materials"

DOI: 10.1002/adma.202211155

Abstract: Optomechanical reliability has emerged as an important criterion for evaluating the performance and commercialization potential of perovskite solar cells (PSCs) due to the mechanical‐property mismatch of metal halide perovskites with other device layer. In this… read more here.

Keywords: boundary grooves; solar cells; grain boundary; reliability ... See more keywords
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Interstitial Segregation has the Potential to Mitigate Liquid Metal Embrittlement in Iron.

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Published in 2022 at "Advanced materials"

DOI: 10.1002/adma.202211796

Abstract: The embrittlement of metallic alloys by liquid metals leads to catastrophic material failure and severely impacts their structural integrity. The weakening of grain boundaries by the ingress of liquid metal and preceding segregation in the… read more here.

Keywords: liquid metal; interstitial segregation; grain boundary; segregation ... See more keywords
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Grain Boundary‐Rich Copper Nanocatalysts Generated from Metal‐Organic Framework Nanoparticles for CO2‐to‐C2+ Electroconversion

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Published in 2023 at "Advanced Science"

DOI: 10.1002/advs.202207187

Abstract: Due to severe contemporary energy issues, generating C2+ products from electrochemical carbon dioxide reduction reactions (eCO2RRs) gains much interest. It is known that the catalyst morphology and active surface structures are critical for product distributions… read more here.

Keywords: rich copper; copper; grain boundary; metal organic ... See more keywords
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Local Multimodal Electro‐Chemical‐Structural Characterization of Solid‐Electrolyte Grain Boundaries

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Published in 2021 at "Advanced Energy Materials"

DOI: 10.1002/aenm.202003309

Abstract: Typical models of polycrystalline ionic materials treat the grain boundary properties as single valued, without consideration of the full range of values that define the macroscopically measured average. Here a unique experimental platform suitable for… read more here.

Keywords: grain boundaries; local multimodal; characterization; spectroscopy ... See more keywords
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An advantageous imaging perspective for quantitative evaluation of 7075 aluminum alloy grain boundary precipitates using scanning electron microscope

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Published in 2022 at "Microscopy Research and Technique"

DOI: 10.1002/jemt.24117

Abstract: 7075 Aluminum alloy (AA7075) samples undergone four aging sequences were examined using a scanning electron microscope (SEM) and a transmitted electron microscope (TEM). The measurements results validate the correlation between stress corrosion cracking (SCC) resistance… read more here.

Keywords: electron microscope; grain boundary; 7075 aluminum;
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Surface and grain boundary segregation in 16MND5 steel

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Published in 2017 at "Surface and Interface Analysis"

DOI: 10.1002/sia.6206

Abstract: An adequate model of quantification when there are many segregating elements is required for industry and research. Hence, for the first time, surface segregation kinetics on industrial 16MND5 steel was studied by XPS spectroscopy at… read more here.

Keywords: 16mnd5 steel; grain boundary; surface; spectroscopy ... See more keywords