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Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size

Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG

Frontiers in Energy 2018, Volume 12, Issue 1,   Pages 143-157 doi: 10.1007/s11708-018-0520-z

Abstract: We highlight that this new theory can be used for not only metals, but also nonmetals, even for amorphousFrom the thermal reffusivity against temperature curves, the Debye temperature of the material and theresidual thermal reffusivity at the 0 K limit, the structural thermal domain (STD) size of crystalline and amorphousUltimately, the future application of thermal reffusivity theory in studying 2D materials and amorphous

Keywords： thermal reffusivity theory     phonon behavior     structure defects     structural thermal domain (STD) size     2D material     amorphous material    

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Advances in chemical synthesis and application of metal-metalloid amorphous alloy nanoparticulate catalysts

WU Zhijie, LI Wei, ZHANG Minghui, TAO Keyi

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 1,   Pages 87-95 doi: 10.1007/s11705-007-0018-4

Abstract: This paper reviews the advances in the chemical synthesis and application of metal-metalloid amorphousAfter a brief introduction on the history of amorphous alloy catalysts, the paper focuses on the propertiesof amorphous alloy nanoparticles.This paper further outlines the applications of amorphous alloys, with special emphasis on the problemsand strategies for the application of amorphous alloy nanoparticles in catalytic reactions.
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Influence of using amorphous silicon stack as front heterojunction structure on performance of interdigitated

Rui JIA,Ke TAO,Qiang LI,Xiaowan DAI,Hengchao SUN,Yun SUN,Zhi JIN,Xinyu LIU

Frontiers in Energy 2017, Volume 11, Issue 1,   Pages 96-104 doi: 10.1007/s11708-016-0434-6

Abstract: investigate the potential of front surface field (FSF) offered by stack of n-type doped and intrinsic amorphousThe n-type doped amorphous silicon (n-a-Si) layer has been optimized in terms of doping level and thicknessThe optimized intrinsic amorphous silicon (i-a-Si) layer should be as thin as possible with an energy

Keywords： amorphous silicon     front surface field     simulations     interdigitated back contact-heterojunction solar cells    

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Thermodynamic study on dynamic water and organic vapor sorption on amorphous valnemulin hydrochloride

Jinbo OUYANG, Jingkang WANG, Yongli WANG, Qiuxiang YIN, Hongxun HAO

Frontiers of Chemical Science and Engineering 2015, Volume 9, Issue 1,   Pages 94-104 doi: 10.1007/s11705-015-1460-3

Abstract: The sorption of water and organic vapors on valnemulin hydrochloride was determined by dynamic vapor sorption at 25 °C. The adsorption-desorption behavior of water vapor and a series of organic vapors was investigated to probe the structural changes in valnemulin hydrochloride before and after sorption. The isothermal adsorption equilibrium data was evaluated using Guggenheim-Anderson-deBoer (GAB) and Brunauer-Emmett-Teller (BET) models. The BET model is applicable only at low relative pressures (0.1≤RP≤0.4) while the GAB model is applicable in the whole range of RPs (0.1≤RP≤0.9). The sorption kinetics at high RPs was determined by fitting the sorption data to the Avrami equation and the sorption content time relationship could be predicted by the Avrami equation. Finally, the possible sorption mechanism of valnemulin hydrochloride was also discussed.

Keywords： valnemulin hydrochloride     water vapor     organic vapors     sorption     kinetics    

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Hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol on NiB/SiO2 amorphous alloy catalyst

SONG Yun, LI Wei, ZHANG Minghui, TAO Keyi

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 2,   Pages 151-154 doi: 10.1007/s11705-007-0028-2

Abstract: NiB/SiO amorphous alloy catalyst was prepared by power electroless plating method and characterized by

Keywords： following     Brunauer     electroless     temperature     transmission    

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>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 10,   Pages 1430-1439 doi: 10.1007/s11705-023-2320-1

Abstract: , we report an in situ phosphorization of zeolitic imidazole frameworks (ZIF-67) to generate amorphous

Keywords： CoP/Cu2O@CF     electrocatalyst     phosphorization     HER     DFT    

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Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

Frontiers in Energy 2013, Volume 7, Issue 3,   Pages 317-332 doi: 10.1007/s11708-013-0271-9

Abstract: With many superior physical properties over conventional fluids, the low melting point liquid metal materialInspired by the Material Genome Initiative as issued in 2011 by the United States of America, a morespecific and focused project initiative was proposed in this paper—the liquid metal material genome aimedThe theoretical strategies and experimental methods in the research and development of liquid metal materialParticularly, the calculation of phase diagram (CALPHAD) approach as a highly effective way for material

Keywords： liquid metal material genome     energy material     material discovery     advanced material     room-temperature liquid    

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Robust topology optimization of multi-material lattice structures under material and load uncertainties

Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 2,   Pages 141-152 doi: 10.1007/s11465-019-0531-4

Abstract: Enabled by advancements in multi-material additive manufacturing, lightweight lattice structures consistingThis work proposes a density-based robust topology optimization method for meso- or macro-scale multi-materiallattice structures under any combination of material and load uncertainties.The method utilizes a new generalized material interpolation scheme for an arbitrary number of materialsExamples of a cantilever beam lattice structure under various material and load uncertainty cases exhibit

Keywords： robust topology optimization     lattice structures     multi-material     material uncertainty     load uncertainty    

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Thoughts on Scientific Issues in Engineering Material Research

yuqiao

Strategic Study of CAE 1999, Volume 1, Issue 3,   Pages 1-4

Abstract: Although some achievements have been accumulated in material research at home and abroad, deeper investigationsare still needed on a more precise model and state equation corresponding to the damage of a specific materialand the erosion of the space articles as well as the increase of the retreat value of the protection materialbelong to the response of materials to high speed collision.Electromagnetic materials such as radome material, infrared stealth material and EM shielding material are all EM functioning materials with EM wave of

Keywords： material for radome     wave absorbing material     infrared stealth material     EMC material    

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Research of the Preparation Technology for Zr66Al9Cu16Ni9 Bulk Amorphous

Ruan Xuping,Ruan Hongwei

Strategic Study of CAE 2004, Volume 6, Issue 5,   Pages 76-78

Abstract:

The paper introduced the preparation technology for bulk amorphous alloys.sub>66Al9Ni9Cu16 alloy, hence hindering the formation of the amorphousof the raw and processed materials were the important factors for to promoting the melt to form the amorphous

Keywords： bulk amorphous alloy     preparation technology     glass     fused salt     vacuum degree    

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Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0677-3

Abstract: beta-phase gallium oxide (β-Ga2O3) is a promising ultrawide bandgap semiconductor materialthe rough and fine grinding processes, cracks were also observed in the rough grinding process, and amorphousThe formation of nanocrystals and amorphous phase was related to the grinding conditions and material

Keywords： monocrystalline beta-phase gallium oxide     grinding process     subsurface damage     nanocrystals     amorphous    

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A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 3, doi: 10.1007/s11465-023-0757-z

Abstract: However, the traditional method involves material waste by trial and error and dramatically decreasesstudy presented a new approach to planning the wheel path for regrinding worn end mills to minimize materialResults showed that the proposed approach could save 25% of cutter material compared with the traditionalThis work effectively provides a general regrinding solution for the worn flank with maximum material-saving

Keywords： flank-regrinding     worn end mill     wheel position and orientation     material loss     over-cut    

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A MATLAB code for the material-field series-expansion topology optimization method

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 607-622 doi: 10.1007/s11465-021-0637-3

Abstract: This paper presents a MATLAB implementation of the material-field series-expansion (MFSE) topo-logy optimizationThe MFSE method uses a bounded material field with specified spatial correlation to represent the structuralWith the series-expansion method for bounded fields, this material field is described with the characteristic

Keywords： MATLAB implementation     topology optimization     material-field series-expansion method     bounded material    

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A multiscale material model for heterogeneous liquid droplets in solid soft composites

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 5,   Pages 1292-1299 doi: 10.1007/s11709-021-0771-3

Abstract: In contrary with conventional composites, which are made of solid elastic inclusions, available materialcomposites including liquid droplets are for highly idealized configurations and do not include all materialavailable models for liquid droplets in solid soft composites and presents a multiscale computational materialDifferent micromechanical material models are incorporated into the presented computational framework

Keywords： liquid in solid     soft composite     computational modeling     multiscale model     heterogeneity    

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Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Frontiers of Structural and Civil Engineering 2011, Volume 5, Issue 1,   Pages 63-70 doi: 10.1007/s11709-010-0016-3

Abstract: This paper demonstrates the difficulties in determining the relevant material parameters for a valuationLaboratory as well as field tests on solid rock-fill material were performed before the beginning of

Keywords： embankment dam     bituminous concrete membrane     rock-fill material properties     deformation behavior    

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Title Author Date Type Operation

Thermal reffusivity: uncovering phonon behavior, structural defects, and domain size

Yangsu XIE, Bowen ZHU, Jing LIU, Zaoli XU, Xinwei WANG

Journal Article

Advances in chemical synthesis and application of metal-metalloid amorphous alloy nanoparticulate catalysts

WU Zhijie, LI Wei, ZHANG Minghui, TAO Keyi

Journal Article

Influence of using amorphous silicon stack as front heterojunction structure on performance of interdigitated

Rui JIA,Ke TAO,Qiang LI,Xiaowan DAI,Hengchao SUN,Yun SUN,Zhi JIN,Xinyu LIU

Journal Article

Thermodynamic study on dynamic water and organic vapor sorption on amorphous valnemulin hydrochloride

Jinbo OUYANG, Jingkang WANG, Yongli WANG, Qiuxiang YIN, Hongxun HAO

Journal Article

Hydrogenation of furfuryl alcohol to tetrahydrofurfuryl alcohol on NiB/SiO2 amorphous alloy catalyst

SONG Yun, LI Wei, ZHANG Minghui, TAO Keyi

Journal Article

>In situ growth of phosphorized ZIF-67-derived amorphous CoP/Cu2O@CF electrocatalyst

Journal Article

Liquid metal material genome: Initiation of a new research track towards discovery of advanced energy

Lei WANG, Jing LIU

Journal Article

Robust topology optimization of multi-material lattice structures under material and load uncertainties

Yu-Chin CHAN, Kohei SHINTANI, Wei CHEN

Journal Article

Thoughts on Scientific Issues in Engineering Material Research

yuqiao

Journal Article

Research of the Preparation Technology for Zr66Al9Cu16Ni9 Bulk Amorphous

Ruan Xuping,Ruan Hongwei

Journal Article

Subsurface damage pattern and formation mechanism of monocrystalline -GaO in grinding process

Journal Article

A novel approach to minimizing material loss for computer numerical control flank-regrinding of worn

Journal Article

A MATLAB code for the material-field series-expansion topology optimization method

Journal Article

A multiscale material model for heterogeneous liquid droplets in solid soft composites

Journal Article

Influence of soft rock-fill material as dam embankment with central bituminous concrete membrane

Peter TSCHERNUTTER

Journal Article