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    题名 作者 年代 出处 被引量
1Influence of Electrolytes on the Microstructure of Microarc Oxidation Coatings on Ti-6Al-4V Alloy显示文摘Dense ceramic oxide coatings of about 50 μm may be prepared on Ti-6AI-4V alloy surface by alternating-current microarc oxidation in aluminate and silicate solutions, respectively. Their phase constituent and microstructure were characterized using X-ray diffraction (XRD) and scanning electron microscopy (SEM). The results show that the electrolytic ions have incorporated into the interior of the coatings. The coating formed in aluminate solution is composed of the rutile TiO2 and TiAl2O5 phases rather than the rutile, anatase and amorphous SiO2 phases for the coating formed in silicate solution. However, TiAl2O5 content in the outer layer of the two coatings is much higher than in the inner layer. It is suggested that all these oxides may result from a rapid solidification of the molten coating in the microarc discharge zone.WenbinXUE ChaoWANG2002Journal of Materials Science & Technology2002,18,1:3
2Non-classical diffusion model for heat and mass transfer in laser drying显示文摘A numerical analysis of the laser drying process by employing a generalized, Maxwell-Cattaneo equation to treat both heat and mass transfer was presented. Calculations were performed to illustrate the non-classical transport of heat and moisture. The effect of the heat flux density and the initial moisture content on water removal was also investigated. The results indicate that the nonequilibrium mass diffusion plays an important role during the very early stages of moisture removal, especially at the surface of the medium. Away from the surface, the non-Fickian model shows a delay in the reduction of the moisture content. The calculation resuits also show that the initial moisture content of the medium has a considerable effect on water removal.XiulanHuai GuoxiangWang RenqiuJiang BinLi 2004Journal of University of Science and Technology Beijing2004,11,5:0
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