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合具有一定的指导作用及工程应用价值. 关键词:复合材料;配比关系;颗粒增强;纳米粉体 中图分类号:TF 123.1; TB 333 文献标识码:A Mixture ratio of micro/nano-powders prepared by mechanical composite process WANG Hong-yu1, 2...; 2. School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China) Abstract: Based on the estimation method of mixture ratio of covered composite particles presented by ALONSO......
Effective Medium Approximation for Nonlinear Composite MediaK.W.Yu摘 要:<正> We build the perturbation expansion method for nonlinear composite media and extend the EMA fornonlinear effective conductivity. Using the solutions of boundary-value problems of a cylindrical in-clusion, we derive formulae for nonlinear effective conductivity.关键词:......
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J. Cent. South Univ. Technol. (2010) 17: 1403-1408 DOI: 10.1007/s11771-010-0649-3 Theoretical solution of transient heat conduction problem in one-dimensional double-layer composite medium ZHOU.... Then, a theoretical solution model of transient heat conduction problem in one-dimensional double-layer composite medium was built utilizing the natural eigenfunction expansion method. In order to verify......
基于两相流理论错齿式迷宫密封的数值研究周春平1,2,张雨21. 成都工业职业技术学院轨道交通工程系2. 西南交通大学牵引动力国家重点实验室摘 要:基于Mixture模型,以油雾-空气混合物为研究对象,运用Fluent软件数值分析错齿式迷宫密封的内部流场,研究错齿式迷宫密封的密封机理,分析油雾参数对迷宫密封性能的影响规律.研究结果表明:基于两相混合介质分析错齿式迷宫密封性能需要考虑涡流离心力.涡流离心力使油雾颗粒沿壁面运动,颗粒直径越大,浓度越高,壁面运动加强,油雾泄漏量越大,空气泄漏量越小.工程实践中可以运用油雾颗粒的沿壁运动,设置合适的回油孔结构实现回油,减小油雾泄漏.关键词:Mixture模型;错齿式迷宫密封;油雾参数;离心力;......
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J. Cent. South Univ. (2017) 24: 1040-1049 DOI: 10.1007/s11771-017-3507-8 Heat treatment and granule medium internal high-pressure forming of AA6061 tube BI Jiang(毕江)1, 2, ZHAO Chang-cai(赵长财)1, BI..., Qinhuangdao 066004, China Central South University Press and Springer-Verlag Berlin Heidelberg 2017 Abstract: The new forming process of AA6061 alloy tube, including solution treatment, granule medium......
J. Cent. South Univ. Technol. (2011) 18: 2192-2200 DOI: 10.1007/s11771-011-0962-5 Degradation behavior of aggregate skeleton in stone matrix asphalt mixture MA Tao(马涛), WANG Zhen(王真), ZHAO Yong-li(赵永... skeleton in stone matrix asphalt mixture was investigated based on theoretical analysis, laboratory test and field materials evaluation. A stress-transfer model was established to provide the fundamental......
Roast Reaction Kinetics of Bastnasite Concentrate with Sodium Carbonate Mixture柳召刚,张继荣摘 要:RoastReactionKineticsofBastnasiteConcentratewithSodiumCarbonateMixtureLiuZhaogang(柳召刚)BaotouResearchInstituteofRareEarth,Baot...关键词:......
; 文献标志码:A Synthesis of nano-sized SiC-ZrB2 ceramic powder mixture by boro-carbothermal reduction method ZHANG Zhao-fu, SHA Jian-jun, WANG Yong-chang, DAI Ji-xiang, LI Jian (State Key Laboratory of Structural Analyses for Industrial Equipment, Dalian University of Technology, Dalian 116024, China) Abstract: Nano-sized SiC-ZrB2 ceramic powder mixture was synthesized......