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| 1 | STRUCTURAL TRANSFORMATION AND ITS REVERSIBILITY IN LIQUID Al-13%Si ALLOY AT HIGH TEMPERATURES显示文摘STRUCTURALTRANSFORMATIONANDITSREVERSIBILITYINLIQUIDAl13%SiALLOYATHIGHTEMPERATURES①WangWeimin,BianXiufang,QinJingyuandYeYifuC... | Wang Weimin Bian Xiufang Qin Jingyu Ye Yifu S.I.Sljusarenko | 1998 | 中国有色金属学会会刊:英文版1998，8，2： | 3 |
| 2 | Electron theory analysis about the influence of Cr and Mn on the carbide spheroidization by heat treatment显示文摘It is found that the distribution of covalent electron pair number and covalent bond energy was nonuniform in carbides Fe 3C, (Fe,Cr) 3C and (Fe,Mn) 3C, in which the energy difference between the strongest and the weakest bonds is very great. A criterion of covalent bond breaking during the heat treatment of M 3C pattern carbide is presented as follows. If the heat energy \%E\-\%w from heat treatment is higher than the diffusion activation energy \%Q\% of carbon atom in γ_Fe, the less the covalent bond energy \%E\% α is, the earlier the covalent bond α will be broken. According to the criterion, why the breaking of (Fe,Mn) 3C network was easier than that of Fe 3C network and why the breaking of (Fe, Cr) 3C network was more difficult than that of Fe 3C network are explained. It is indicated that Mn promoted the carbide to be spheroidized and Cr hindered the carbide from spheroidization during the heat treatment of carbides spheroidization. | Yifu Ye Tongxiang Fan Yuxia Shang | 1998 | Chinese Science Bulletin1998，43，15： | 2 |
| 3 | A General Method for the Synthesis of Hybrid Nanostructures Using MoSe_(2) Nanosheet-Assembled Nanospheres as Templates显示文摘The layered transition metal dichalcogenides(TMDs)and transition metal phosphides are low-cost,earth-abundant,and robust electrocatalysts for hydrogen evolution reaction(HER).Integrating them into hybrid nanostructures is potentially promising to further boost the catalytic activity toward HER based on their synergistic effects.Herein,we report a general method for the synthesis of a series of MoSe_(2)-based hybrid nanostructures,including MoSe_(2)-Ni_(2)P,MoSe_(2)-Co_(2)P,MoSe_(2)-Ni,MoSe_(2)-Co,and MoSe_(2)-NiS,by postgrowth of Ni_(2)P,Co_(2)P,Ni,Co,and NiS nanostructures on the presynthesized MoSe_(2) nanosheet-assembled nanospheres,respectively,via a colloidal synthesis method.As a proof-of-concept application,the as-synthesized hybrid nanostructures are used as electrocatalysts for HER,exhibiting high activity and stability in acidic media.Among them,the MoSe_(2)-Co_(2)P composite shows the highest HER activity with an overpotential of 167 mV at 10 mA cm^(-2). | Shikui Han Kai Zhou Yifu Yu Chaoliang Tan Junze Chen Ying Huang Qinglang Ma Ye Chen Hongfei Cheng Weijia Zhou Hua Zhang | 2019 | Research2019，，1： | 1 |
| 4 | Atomic model of liquid pure Fe显示文摘Using a θ-θ X-ray diffractometer, the liquid structure of pure Fe was investigated and the diffraction intensity, structure factor, pair distribution function as well as the coordination number and atomic distance were obtained. The experimental results showed that there was also a pre-peak on the curve of the structure factor of liquid pure Fe. The pre-peak is a mark of medium-range order in melts. According to the characteristics of pre-peak, an atomic model of liquid pure Fe is constructed, namely, the structure of liquid pure Fe is a combination of clusters consisting of bcc cells with shared vertexes and other atoms with random dense atom distribution. | Huanrong Wang Yifu Ye Weimin Wang Jingyu Qin | 2001 | Chinese Science Bulletin2001，46，4： | 1 |
| 5 | Crystallization kinetics of an amorphous Zr-Cu-Ni alloy:calculation of the activation energy显示文摘 | Wang Huanrong Gao Yulai Ye Yifu | 2003 | Journal of Alloys and Compounds2003，353，： | 1 |
| 6 | Preparation of highly preferred orientation TiB_2 coatings显示文摘This paper focuses on the preparation of titanium diboride (TiB2) coatings on the graphite substrate by continuous current plating (CCP) and pulse current plating (PIC) electrochemical techniques in fluoride electrolytes (LiF-NaF-KF) containing K2TiF6 and KBF4 as the electrochemically-active components at 700°C. Thick leveled and uniform coatings were obtained and were composed of relatively pure TiB2. The effect of the experimental parameters on the microstructure of the coatings was studied. The results showed the electrodeposition with PIC produced coatings with better quality, when compared with those obtained by CCP, under the conditions of the current density i = 0.6 A/cm2, frequency = 100 Hz, and ton/toff = 4/1. XRD analysis indicated that the preferred orientation of coatings is (110) plane, which is in accordance with the prediction of the two-dimensional crystal nuclei theory. The effect of a ratio of ton/toff and frequency on the crystal size, tex- ture coefficient and microstress was also investigated. | LI Jun LI Bing JIANG Lushan DONG Zheng 'e YE Yifu | 2006 | Rare Metals2006，25，2： | 0 |
| 7 | Phase boundary sliding model controlled by diffusion-solution zone in superplastic deformation显示文摘With scanning electron microscope (SEM), the surface morphology of phase boundary sliding (PBS) in superplastic deformation (SPD) of Zn-Al alloy and the diffusion behavior of Zn, Al interfaces in their powers’ sintering have been investigated. The results show that Zn-Al eutec-toid microstructure can be achieved through their powders’ sintering, and the diffusion characteristic between Zn and Al is just a demonstration of Kirkendall effect, in which Zn can dissolve into Al whereas Al can hardly dissolve into Zn. During sintering, a diffusion-solution zone a’ has formed and subsequently transformed into a eutectoid microstructure in the cooling process. The superplastic deformation mechanism of Zn-Al eutectic alloy is phase boundary sliding which is controlled by the diffusion-solution zone α’. If the diffusion-solution zone α’ is unsaturated, it will have much more crystal defects and the combination between α’ and phase P is weak, thus the process of phase boundary sliding becomes easily; on the | SHI Zhiqiang YE Yifu LI Shichun TENG Xinying WANG Huanrong | 2002 | Chinese Science Bulletin2002，47，14： | 0 |
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