Geng Haoran
Jinan University
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Publication
Featured researches published by Geng Haoran.
Chinese Physics Letters | 2003
Geng Haoran; Xue Xianying; Yu Ke; Liu Jian-tong
The viscosity of Cu melt is obtained to be in the ranges from 2.418 to 3.039 mPas under vacuum atmosphere (2 Pa), from 2.907 to 3.425 mPas under nitrogen gas atmosphere and from 3.352 to 4.015 mPas under argon gas atmosphere. The activation energy is estimated to be 0.224, 0.162 and 0.150 eV for the vacuum atmosphere (2 Pa), nitrogen gas atmosphere and argon gas atmosphere, respectively. The results reflect the essential structural change in the Cu melt by using different atmospheres.
Chinese Science Bulletin | 2007
Geng Haoran; Sun Chun-Jing; Wang Rui; Qi Xiaogang; Zhang Ning
The densities of Sb and Bi melts were investigated by an improved Archimedean method. The results show that the density of the Sb melt decreases linearly with increasing temperature, but the density of the Bi melt firstly increases and then decreases as the temperature increases. There is a maximum density value of 10.002 g/cm3 at 310°C, about 39°C above the melting point. The temperature dependence of the Sb melt is well fitted with the expression ρ=6.8590−5.8105×10−4T, and that of the Bi melt is fitted with ρ=10.3312−1.18×10−3T. The results were discussed from a microstructure viewpoint.
Journal of Materials Engineering and Performance | 2006
Wang Shou-ren; Sun Bin; Geng Haoran; Wang Yingzi
One kind of three-dimensional network structure, reinforced aluminum magnesium matrix composites, has been prepared by pressure-assisted and vacuum-driven infiltration technology. The composites interpenetrated with ceramic have higher wear resistance than the metal matrix owing to their special topology structure. The reinforcement volume fraction has a large effect on abrasive wear. The wear rate decreases with the increase of the volume fraction of reinforcement and increases with the increase of sliding time and applied load. The wear mechanism of the composites (abrasive wear) differs greatly from the matrix alloy (adhesive wear).
Materials Letters | 2005
Liu Peng; Li Yajiang; Geng Haoran; Wang Juan
Vacuum | 2006
Liu Peng; Li Yajiang; Geng Haoran; Wang Juan
Applied Composite Materials | 2006
Wang Shouren; Geng Haoran; Zhang Jingchun; Wang Yingzi
Journal of Materials Science | 2006
Wang Shouren; Geng Haoran; Wang Yingzi
Archive | 2005
Geng Haoran; Wang Shouren; Cui Feng; Du Shuo
Archive | 2012
Wang Zhenqing; Meng Lingjuan; Yang Zhongxi; Geng Haoran
Archive | 2012
Wang Zhenqing; Yang Zhongxi; Geng Haoran