Rock avalanche deposits store quantitative evidence on internal shear during runout
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Mechanism of Dynamic Formation of Ultrafine Ferrite Grains during High Temperature Processing in Steel
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Evolution of Twin Boundaries and Contribution to Dynamic Recrystallization and Grain Growth of Inconel 625
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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
A Polymerization-Assisted Grain Growth Strategy for Efficient and Stable Perovskite Solar Cells.
Sign Up to like & getrecommendations! 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
High-Performance and Reliable Lead-Free Layered-Perovskite Transistors.
Sign Up to like & getrecommendations! Published in 2020 at "Advanced materials"
DOI: 10.1002/adma.202002717
Abstract: Perovskites have been intensively investigated for their use in solar cells and light-emitting diodes. However, research on their applications in thin-film transistors (TFTs) has drawn less attention despite their high intrinsic charge carrier mobility. In… read more here.
Keywords: performance reliable; lead free; reliable lead; performance ... See more keywords
Interpretation of Rubidium‐Based Perovskite Recipes toward Electronic Passivation and Ion‐Diffusion Mitigation
Sign Up to like & getrecommendations! Published in 2022 at "Advanced Materials"
DOI: 10.1002/adma.202109998
Abstract: Rubidium cation (Rb+) addition is witnessed to play a pivotal role in boosting the comprehensive performance of organic–inorganic hybrid perovskite solar cells. However, the origin of such success derived from irreplaceable superiorities brought by Rb+… read more here.
Keywords: diffusion; electronic passivation; rubidium; ion ... See more keywords
Unraveling Thermodynamic and Kinetic Contributions to the Stability of Doped Nanocrystalline Alloys using Nanometallic Multilayers
Sign Up to like & getrecommendations! 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