Xiufang Bian

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We have performed ab initio molecular-dynamics simulation of liquid GaSb (l-GaSb) up to 20.0 GPa. The calculated structure factors are consistent with the recent experimental results, and the partial structure parameters show that the structure of l-GaSb under pressure contracts nonuniformly. In the whole calculated pressure region, the contraction of(More)
Through the high temperature X-ray diffraction, structural evolution of Ag<inf>70</inf>Au<inf>30</inf> alloy with varying temperatures has been investigated. The liquid alloy experiences a sudden structure change nearby 1150 &#x00B0;C, which has been further thermodynamically confirmed by Differential Scanning Calorimetry (DSC). Small pre-peaks have been(More)
In this work, we report an obvious low field-induced magnetic confinement effect on the diffusivity in binary metallic melts under a weak magnetic field. A quantitative description of this nontrivial dynamic behavior is given by a physical analytical model based on the Hall effect, which is in agreement with our experimental results. Meanwhile, a quadratic(More)
Great progress has been made in basic features of the potential energy landscape (PEL) theoretically. The present work, however, attempts to cast new light on it from experimental aspects. By a survey of experimental data related to thermodynamics or dynamics of metallic glass-forming liquids, it is found that the increased rate of excitation of vibrational(More)
The composite films of Phenolic Resin/Zn were prepared. Zn was used as the foaming agent. The mixtures of 4 wt% curing agent hexamethylenetramine (HMTA) and 1&#x2013;7 wt% Zn were added during the thermosetting phenolic resin curing process. Thus, the porous materials were produced. Meanwhile, the composite films of Phenolic Resin/Zn were obtained from(More)
Due to the inaccessibility of the supercooled region of marginal metallic glasses (MMGs) within the experimental time window, we study the cluster kinetics above the liquidus temperature, Tl, to acquire information on the fragility of the MMG systems. The thermodynamic basis for the stability of locally ordered structure in the MMG liquids is discussed in(More)
By applying ab initio molecular dynamics simulation to liquid Cu(6)Sn(5) alloy, the hetero-coordination tendency is discovered by Bathia-Thornton partial correlation functions and a chemical short-range parameter. However the local structural environment of Sn in l-Cu(6)Sn(5) alloy resembles that of liquid Sn by Voronoi analysis. A new feature, i.e. a(More)
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