Precipitation Sequence of Middle Al Concentration Alloy Using the Inversion Algorithm and Microscopic Phase Field Model

Zhao, Yuhong; Tian, Xiaolin; Zhao, Baojun; Sun, Yuanyang; Guo, Huijun; Dong, Mengyao; Liu, Hu; Wang, Xiaojing; Guo, Zhanhu; Umar, Ahmad; Hou, Hua

doi:10.1166/sam.2018.3430

Cited by 73 publications

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“…Besides, the techniques and findings described in this study enable the production of biochemicals and bioenergy from the lignin. As compared with the metals, carbon, polymers and ceramics (32)(33)(34)(35)(36)(37)(38)(39)(40)(41)(42)(43)(44)(45)(46)(47)(48)(49)(50), the lightweight makes this obtained lignin to be used together with other functional fillers for making multifunctional polymer nanocomposites suitable for various applications including electromagnetic interface (EMI) shielding (51)(52)(53)(54)(55), adsorbents for heavy metal, dye and spilled oil removal (56)(57)(58)(59)(60)(61)(62)(63)(64) and sensors (65)(66)(67)(68), etc.…”

Section: Discussionmentioning

confidence: 99%

Structural characterization of lignin from D. sinicus by FTIR and NMR techniques

Shi

Deng

et al. 2019

Green Chemistry Letters and Reviews

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159

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Milled wood lignin (MWL) was isolated from Dendrocalamus sinicus, an abundant bamboo variety in the earth, using Bjorkman method. Elucidation and quantification of the chemical structures for the isolated MWL have been facilitated by employing FT-IR and NMR techniques. The obtained results showed that the MWL consists of syringyl (S), guaiacyl (G), and p-hydroxyphenyl (H) units, indicating it as grass type (HGS) lignin. There is no significant change in structure (i.e. cleavage at α-O-4 ′ and β-O-4 ′ linkage) was observed. NMR techniques indicated that the isolated lignin was rich in β-O-4 ′ aryl ether substructures and syringyl (S) units. Furthermore, the sufficient understanding of the chemical structure of the lignin benefits their effective utilization towards the production of renewable biomass and biofuels.

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Section: Discussionmentioning

confidence: 99%

Structural characterization of lignin from D. sinicus by FTIR and NMR techniques

Shi

Deng

et al. 2019

Green Chemistry Letters and Reviews

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159

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“…The initial state of the simulation is the same preset domain structure [ 22 ], i.e., the cubic phase, which has a higher energy state to ensure the comparability of calculation results. Considering that, the main purpose of this paper, the electric field dependence, hence the misfit strain, which is constrained by substrates, is set as zero to reduce the influence of the elastic field.…”

Section: Methodsmentioning

confidence: 99%

Alternating Current Field Effects in Atomically Ferroelectric Ultrathin Films

Cao

Liu

et al. 2022

Materials

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In this work, atomically K1−xNaxNbO3 thin films are taken as examples to investigate the reversible and irreversible effects in a horizon plane, i.e., the changes of domain structures, phase states, free energies, etc., under a z-axis alternating current field via a phase-field method. The simulation results show the driving forces during the charging and discharging process, where there is a variation for the angles of the domain walls from 180° to 90° (and then an increase to 135°), which are the external electric field and domain wall evolution, respectively. As for the phase states, there is a transformation between the orthorhombic and rhombohedral phases which can’t be explained by the traditional polarization switching theory. This work provides a reasonable understanding of the alternating current field effect, which is essential in information and energy storage.

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“…So far, the experimental study of the microstructure of materials has some limitations. Atomic simulation can supplement it, especially in the study of scale (Xin et al, 2021;Kuang et al, 2018;Zhao et al, 2018;Guo et al, 2019). With the rapid development of computer simulation, such as the phase-field method (PF) (Peng et al, 2021), molecular dynamics (MD) (Song et al, 2014), and phase-field crystal method (PFC) (Zhao et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Arrangement and Decomposition of Grain Boundary Dislocations: Two-Mode Phase-Field Crystal Simulation

Wang

Zhang

et al. 2022

Front. Mater.

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The grain-boundary dislocation arrangement and decomposition during constant-volume deformation of a nanoscale bi-crystal system in fcc-structured materials were studied by using the two-mode phase-field crystal (2PFC) method. The effects of different grain boundary misorientations (GBMs) and tensile deformation directions on the dislocation arrangement and decomposition are analyzed. In three different symmetrical tilt grain boundaries evaluated by PFC, the atomic density profile of grain boundaries changed periodically at equilibrium. The initial grain boundary dislocation arrangement of the three samples is almost the same when tensile deformation is applied to the samples in the x- or y- direction, and all are symmetrically arranged in a “bowknot ”structure. The stress at the grain boundary is concentrated with the increase of strain, and dislocation decomposition can effectively reduce the stress concentration. The time steps of dislocation decomposition at grain boundaries decreases with increasing strain rate. This work facilitates the application of PFC in the analysis of grain-boundary mechanics in an extended range of materials.

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Precipitation Sequence of Middle Al Concentration Alloy Using the Inversion Algorithm and Microscopic Phase Field Model

Cited by 73 publications

References 0 publications

Structural characterization of lignin from D. sinicus by FTIR and NMR techniques

Structural characterization of lignin from D. sinicus by FTIR and NMR techniques

Alternating Current Field Effects in Atomically Ferroelectric Ultrathin Films

Arrangement and Decomposition of Grain Boundary Dislocations: Two-Mode Phase-Field Crystal Simulation

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