Results 81 to 90 of about 3,253,810 (284)

Ultrathin Amphipathic Dual‐Polymer Networks: Unlocking Hyper‐Permeable CO2 Capture via Solvent‐Mediated Poly(Ethylene Oxide) Amorphization

Advanced Functional Materials, EarlyView.
Hydrophilic PEO‐copolymers and hydrophobic PDMS are physically integrated via a compatibilizing solvent into an amphipathic dual‐polymer network with versatile interfacial affinity and completely amorphized PEO segments for hyper‐permeable CO2 transport.
Ji Wu, Fan Feng, Baiwang Zhao, Jordan Yuan Zhe Ng, Kaiyu Wang, Can Zeng Liang, Guangtai Zheng, Boxuan Zhao, Tai‐Shung Chung, Sui Zhang   +9 more
wiley   +1 more source

Relationship between Formation of Geometrically Necessary Dislocations and Local Strain Hardening of Slip Systems in Symmetric type Bicrystalsunder Tensile Loading [PDF]

, 2005
Slip deformation in symmetric-type bicrystal models subjected to tensile load is investigated by a finite element crystal plasticity analysis code. Accumulation of geometrically necessary dislocations (GNDs) and statistically stored dislocations (SSDs ...
近藤, 了嗣, 大橋, 鉄也
core   +1 more source

Architecture‐Driven Functional Coupling in Vertically Aligned Nanocomposites

Advanced Functional Materials, EarlyView.
Vertically aligned nanocomposites define a growth‐engineered architecture in which vertical interfaces, strain fields, defect pathways, and phase connectivity are created simultaneously. This review shows how these architectural features couple ferroic, optical, ionic, electrochemical, and device responses, establishing design rules and open challenges
Md Shatil Islam‐Shanto, Javier Zamudio‐García, Abraham Sánchez‐Caballero, David Marrero‐López, Vincenzo Esposito   +4 more
wiley   +1 more source

FTMP-based simulations and evaluations of Geometrically-Necessary Boundaries (GNBs) of dislocation

The International Journal of Multiphysics, 2019
The present study targets four representative GNBs (Geometrically Necessary Boundaries) in terms of their unified and quantitative evaluations based on the field theory of multiscale plasticity (FTMP). Discrete dislocation dynamics simulations on GNBs 2, 3, 4 and 7, whose details about the consisting dislocations have been experimentally identified and
Ihara, S., Hasebe, T.
openaire   +4 more sources

The effect mechanism of microstructure and impact toughness on M50 bearing steel under electroshock treatment: Experiments and atomic simulation

Materials & Design
To enhance the mechanical properties of M50 bearing steel, particularly its impact toughness, a novel electroshock treatment (EST) process was proposed, and the changes in its microstructure were analyzed in detail in this study.
Long Chen, Yanli Song, Kai Wu, Junhao Hu, Lin Hua, Jue Lu   +5 more
doaj   +1 more source

Grain boundary inclination dependence of GN dislocation patterns and density in bicrystal model

Nihon Kikai Gakkai ronbunshu, 2015
Deformation behaviors of polycrystalline metals are quite complex, and we are not easy to directly investigate them; thus, analyses employing simple models such as bicrystals are required.
Yoshiki KAWANO, Naoya TAMARU, Satoru ISHII, Tsuyoshi MAYAMA, Ryouji KONDOU, Tetsuya OHASHI   +5 more
doaj   +1 more source

Accumulation of geometrically necessary dislocations near grain boundaries in deformed copper

, 2012
Cross-correlation-based analysis of electron backscatter diffraction patterns has been used to map the distribution of geometrically necessary dislocation (GND) density in deformed polycrystalline copper.
Jiang, J, Wilkinson, AJ, Britton, TB
core   +1 more source

Full‐Field Damage Monitoring in Architected Lattices Using In situ Electrical Impedance Tomography

Advanced Functional Materials, EarlyView.
In situ electrical impedance tomography (EIT) turns 3D‐printed, CNT‐infused architected lattices into full‐field damage‐imaging systems. Tunable Voronoi‐based geometries act as active sensing architectures, enabling conductivity maps to detect early‐stage damage and localise sequential ligament fracture before catastrophic failure.
Akash Deep, Andrea Samore, Alistair McEwan, Andrew McBride, Shanmugam Kumar   +4 more
wiley   +1 more source

Hardness-Depth Relationship with Temperature Effect for Single Crystals—A Theoretical Analysis

Crystals, 2020
In this paper, a mechanistic model is developed to address the effect of temperature on the hardness-depth relationship of single crystals. Two fundamental hardening mechanisms are considered in the hardness model, including the temperature dependent ...
Hao Liu, Long Yu, Xiazi Xiao
doaj   +1 more source

Physically based crystal plasticity FEM including geometrically necessary dislocations: Numerical implementation and applications in micro-forming

, 2015
Due to size effects, the conventional material constitutive models are no longer valid in the investigation of micro-forming processes. In this work, a nonlocal physically based crystal plasticity FEM is developed to investigate the size effects of micro-
Dong, X., Zhang, H.
core   +1 more source