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An overview on nucleation theories and modelsMarcos Flavio de Campos,Jose Adilson de CastroDepartment of Mechanical Engineering, Federal Fluminense University摘 要:nucleation should occur at the surface of grains. Nucleation is interpreted as a two-step process, where......
An overview on nucleation theories and modelsMarcos Flavio de Campos,Jose Adilson de CastroDepartment of Mechanical Engineering, Federal Fluminense University摘 要:nucleation should occur at the surface of grains. Nucleation is interpreted as a two-step process, where......
with increasing the applied nucleation overpotential. Among the models for the nucleation and growth of crystals on the heterogeneous surface, a convenient method for identifying the nucleation mechanism... a diffusion-controlled three-dimensional instantaneous nucleation and growth. Scanning electron microscopy was used to observe that the deposit was dense and contained fine crystallites with average size......
无机杂化纳米晶最新研究进展 王洪礼1,韩学2,田飞2,孙景2 (1.天津大学机械学院,天津,300072;2.天津大学材料学院,天津,300072) 摘要:无机杂化纳米晶是2种或多种无机材料纳米晶通过界面外延而获得的纳米系统.综述了无机杂化纳米晶研究的国内外最新发展,重点讨论了现有各制备方法的关键控制因素以及组元间的作用机制对产物性能的影响,展望了该领域今后的研究方向. 关键词:杂化纳米晶; 组元; 非均匀形核; 功能; 表面活性剂; hybrid nanocrystals; component; heterogeneous nucleation; function; surfactant; [全文内容正在添加中] ......
Article ID: 1003-6326(2005)03-0479-06 Simulation of nucleation and coalescence of second phase droplets during earth-based solidification process of immiscible alloys Received... on the nucleation, diffusional growth, especially the coalescence of the second phase droplets in the miscibility gap. A numerical model based on the discrete multi-particle approach was developed......
Electrochemical Nucleation of Titanium on Platinum赵保东摘 要:ＥｌｅｃｔｒｏｃｈｅｍｉｃａｌＮｕｃｌｅａｔｉｏｎｏｆＴｉｔａｎｉｕｍｏｎＰｌａｔｉｎｕｍＺｈａｏＢａｏｄｏｎｇ(赵保东)ＢｒａｎｃｈＣａｍｐｕｓｏｆＢｅｉｊｉｎｇＵｎｉｖｅｒｓｉｔｙ,Ｂｅｉｊｉｎｇ１０００８３,ＣｈｉｎａＲｅｃｅｉｖｅｄ１７Ｆｅｂ...关键词:......
. [15] NOMURA T, ALONSO M, KOUSAKA Y, TANAKA K. A model for simultaneous homogeneous and heterogeneous nucleation [J]. J Colloid Interface Sci, 1998, 203: 170-176. [16] SHEN Xiang-qian, JING Mao...; Abstract: Fe/Si3N4 composite powder was synthesized by the heterogeneous precipitation-thermal reduction process......
文献标识码:A Effect of TiAl3 on distribution of TiC particles in aluminum matrix and nucleation of α(Al) grain XIA Tian-dong1, 2, DING Wan-wu1, 2, ZHAO Wen-jun1, 2, WANG... Alloys, Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China) Abstract: The effect of TiAl3 on the distribution of TiC particles in aluminum matrix and nucleation of α......
; high purity aluminum; heterogeneous nucleation; grain refinement heterogeneous nucleation phenomenon as well as effect calculation of impurities (or solute), further knowledge about the refining performance and rules of AlTiC master alloys came true. 2 Experimental......
as the heterogeneous core at early aging stage of Al-Zr-Y alloy, which accelerates the diffusion and precipitation of Zr, Y has the tendency to cluster in the precipitate and matrix interface after long-time... is 4 times lower than that of Al-0.30Zr-0.03Y. Al-0.30Zr-0.03Y shows higher nucleation density, smaller precipitate radius and slower coarsening rate. The recrystallization temperature......
