Results 71 to 80 of about 14,400,955 (339)
Biomimetic study on honeycomb energy absorption structure based on straw micro-porous structure
Frontiers in MaterialsIn this paper, sorghum and reed, light stem structures in nature, are selected as biomimetic prototypes. According to their mechanical stability characteristics-the porous structure at the node feature and the porous feature in the outer skin, the ...
Yangyang Zhang +7 more
doaj +1 more source
First-principles calculation on electronic properties of zinc oxide by zinc–air system
Journal of King Saud University: Engineering Sciences, 2017 First-principles calculations are performed to study the electronic properties of zinc oxide (ZnO) formed on an anode after discharging a Zn–air system.
Ahmad Azmin Mohamad +6 more
doaj +1 more source
Polarization-Insensitive Reflective Metasurfaces for Highly Efficient Generation of OAM Beams
Frontiers in Physics, 2020 The polarization-insensitive reflective metasurfaces constructed from hexagonal-ring units along with honeycomb lattice are proposed for the efficient generation of converged orbital angular momentum (OAM) waves.
Xudong Bai
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Numerical Exploration of Thermal Shock Resistance in MgO–C Refractories
Advanced Engineering Materials, EarlyView.A mesostructure‐resolved numerical framework is developed to evaluate the thermal shock resistance of MgO–C refractories. By modeling interface debonding under rapid temperature changes and introducing a modified thermal shock parameter that accounts for mesocracks, the study shows how graphite content and aggregate size influence thermal shock ...
Jishnu Vinayak Gopi +3 more
wiley +1 more source
Formation mechanism of nano-sized η and ω structures in β phase in ECP treated Cu-40Zn alloy
Materials & Design, 2022 Two nano-scaled hexagonal distortions in high temperature BCC phase during cooling is commonly observed in many alloys systems. Although efforts have been made on studying the lattice softening of the BCC structure during cooling, the distortion ...
Meishuai Liu +6 more
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Electronic structures of hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films
, 2007 We investigated the electronic structure of multiferroic hexagonal RMnO3 (R = Gd, Tb, Dy, and Ho) thin films using both optical spectroscopy and first-principles calculations.
C. Degenhardt +12 more
core +1 more source
Microstructure Design of Steel‐Spinel Composites via Spark Plasma Sintering Process
Advanced Engineering Materials, EarlyView.This study illustrates how spark plasma sintering at reduced oxygen partial pressure enables controlled formation of steel‐spinel composites through tailored redox reactions and cation exchange. Comparison of the MgO–Fe2O3, steel–(MgO+Cr2O3), and steel–(MgO+Fe2O3) systems shows how oxygen activity and interface chemistry govern spinel formation, phase ...
Mahnaz Mehdizadehlima +4 more
wiley +1 more source
Nukleonika, 2015 The hyperfine fields and atomic ordering in Ni1−xFexMnGe (x = 0.1, 0.2, 0.3) alloys were investigated using X-ray diffraction and Mössbauer spectroscopy at room temperature.
Satuła Dariusz +4 more
doaj +1 more source
Mechanic properties analysis of quasi-square honeycomb sandwich structure′s core
Journal of Hebei University of Science and Technology, 2017 In order to illustrate the relationship between the quasi-square-honeycomb structure and the hexagonal honeycomb structure, after decomposing the quasi-square honeycomb sandwich structure into unique T-shaped cell, the equivalent elastic constants ...
Guan TONG +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu +2 more
wiley +1 more source