Journal of Wuhan University of Technology-Mater. Sci. Ed.
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Heterogeneous Nature of Calcium Silicate Hydrate (C-S-H) Gel: A Molecular Dynamics Study
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 35 - Trang 435-440 - 2020
Structure and mechanical properties of Calcium silicate hydrate (C-S-H) at a molecular level act as “DNA” of cement-based construction materials. In order to understand loading resistance capability of C-S-H gel, research on molecular dynamics (MD) was carried out to simulate the uniaxial tension test on C-S-H model along x, y, and z directions. Due to the structure and dynamic differences of the ...... hiện toàn bộ
Crystallization kinetics of lithium aluminum germanium phosphate glass by DSC technique
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 27 - Trang 63-66 - 2012
The crystallization kinetics of Li2O-Al2O3-GeO2-P2O5 (LAGP) glass fabricated via the conventional melt-quenching method was studied by differential scanning calorimetry (DSC) under nonisothermal condition at different heating rates. The activation energy of glass transition Eg is 634.4 kJ/mol, indicating that LAGP glass is easy to crystallize at an elevated temperature. The activation energy of cr...... hiện toàn bộ
Electroless Ni-P deposition on magnesium alloy from a sulfate bath
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 23 - Trang 60-64 - 2008
A technology for electroless Ni-P deposition on AZ91D from a low cost plating bath containing sulfate nickel was proposed. The seal pretreatment was employed before the electroless Ni-P deposition for the sake of occluding the micro holes of the cast magnesium alloy and interdicting the bubble formation in the Ni-P coating during plating process. And pickling pretreatment can provide a better adhe...... hiện toàn bộ
Dynamic observation of bainite transformation in a Fe-C-Mn-Si superbainite steel
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 30 - Trang 818-821 - 2015
The dynamic observations of bainitic transformation in a Fe-C-Mn-Si superbainite steel were conducted on a high temperature laser scanning confocal microscope. It is indicated that the mutual intersection of bainite sheaves often occurs during growth of bainite ferrite, resulting in an interlocked bainite microstructure. Moreover, bainite transformation is promoted by higher austenization temperat...... hiện toàn bộ
Effect of annealing on structural, optical and electrical properties of CdS thin films grown by ILGAR
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 21 - Trang 88-91 - 2006
CdS thin films were deposited by ILGAR(ion lay gas reaction) method. The effect of annealing temperature under N2 atmosphere on the structural, chemical, topographical development and optical and electrical properties of CdS thin films was investigated by XRD, SEM, XPS, UV-VIS and two-probe technique. It is found that the cubicphase of as-deposited CdS film transforms to hexagonal phase with a per...... hiện toàn bộ
First Principle Calculation of NbC Precipitation Competition between TiC Particle and Ferrite Matrix
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 33 - Trang 1076-1081 - 2018
The electronic structure, cohesive energy and interfacial energy of ferrite (100)/NbC (100) and TiC (100)/NbC (100) interfaces have been investigated by the first-principles calculation. Moreover, the heterogeneous nuclei mechanism of NbC particle was also analyzed. The results showed that the stacking sequences have a great influence on the cohesive energy and equilibrium interfacial separation o...... hiện toàn bộ
Synthesis and characterization of a novel pH-sensitive complex for drug release
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 25 - Trang 24-27 - 2010
A novel pH-sensitive complex was prepared by using oxidized konjac glucomannan and 4-aminosalicylic acid (4-ASA) through glutaraldehyde as a cross-linking agent. The product was characterized by FTIR and 13C NMR spectra, and the thermogravimetric analysis was also studied. The drug release studies in vitro showed that the amount of 4-ASA released from the complex was about 4%, 56% and 17% after 12...... hiện toàn bộ
Segregation of molten salt on chromizing in thermal diffusion process
Journal of Wuhan University of Technology-Mater. Sci. Ed. - - 2011
The segregation of thermal diffusion salt bath chromizing process was analyzed. The experimental chromizing ingredients were prepared by the four groups A, B, C, and D. In order to study the segregation status of this case, the cooling molten salt in the crucible was removed by drilling from the heart core of molten salt. The core of molten salt was analyzed by X-ray fluorescence spectroscopy and ...... hiện toàn bộ
Synthesis, structural characterization and hydrogen storage of nickel-containing mesoporous MCM-48 by electroless plating
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 31 - Trang 64-67 - 2016
Hydrogen is a promising fuel for it is clean, highly abundant and non-toxic, but on-board storage of hydrogen is still a challenge. So it is imperative to have an efficient method of hydrogen storage. The mesoporous MCM-48 especially the nickel-containing MCM-48 has great potential in hydrogen storage. MCM- 48 was prepared by hydrothermal synthesis. Then electroless plating technology was used to ...... hiện toàn bộ
Effect of UV irradiation on PAN precursor fibers and stabilization process
Journal of Wuhan University of Technology-Mater. Sci. Ed. - Tập 26 - Trang 449-454 - 2011
A low-cost rout for modification the polyacrylontrile(PAN) precursor fibers was developed. The approach involved pretreatment PAN precursor fibers with UV irradiation for various periods of time before the fibers were stabilized. The effect of UV irradiation on the chemical structure, orientation factor, density, crystallite size and morphology of the fibers in the process of stabilization was cha...... hiện toàn bộ
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