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system was developed. The both aspects of surface reaction kinetics and transport phenomena on silicon deposition rate were taken into account in the TKM. The limiting conditions of transport rate...: transport-kinetic model; polysilicon; chemical vapor deposition; silicon deposition rate; transport phenomena 随着全球范围内传统能源的枯竭以及石油价格的不断攀升,太阳能作为环境友好能源受到全世界的广泛关注.尤其是如何生产高效率,低费用的太阳能电池成为科学家的研究重点.多晶硅是作为光伏转换器最好......
Trans. Nonferrous Met. Soc. China 22(2012) 901-906 Numerical simulation and physical analysis for dynamic behaviors of P/M TiAl alloy in hot-packed forging process ZHANG Wei1, LIU Yong1, WANG Li1... and physical simulation techniques. The temperature dependence on the thermal and mechanical properties of the billet was considered and the optimum hot working temperature of packed TiAl alloy was 1150......
Study of Physical Properties of SiCw/Al Composites During Unloaded Thermal Cycling TIAN Zhi-gang1,CHENG hua1,ZHU Xiao-gang1,ZHAO Xin-ming1,CHEN Wen-li1 (1.Armor Technique Institute of PLA, Changchun 130117, P. R. China) 摘要:The thermal expansion coefficient of SiCw/Al composites squeeze cast during unloaded thermal cycling was determined and analyzed. The study had shown that the thermal......
; 文献标志码:A 文章编号:1672-7207(2016)02-0394-07 Influence of COREX shaft furnace inner structure on solid flow by physical modelling... of the shaft furnace. Key words: COREX shaft furnace; solid flow; physical modelling; AGD beams; guiding cone COREX是奥钢联开发的一种用煤和球团(块矿)生产铁水的炼铁新工艺,具有无焦或少焦冶炼的特点[1-2].COREX上部竖炉及下部熔化气化炉均为典型的气固逆流反应器,离散颗粒的运动行......
RESEARCH ON CHEMICAL AND PHYSICAL ACTIVATION OF γ-C2S龙世宗,王影欣,冯修吉摘 要:<正>This paper reports the experiments of chemi-cal and physical activation of γ-C2S and their results.Chemi-cal activation is that the addition of active substances to γ-C2Scan promote its 3 days hydrated ratio to 20% and 7 days to26-31%.Physical activation,on the other hand......
Characteristics of the electrode melting phenomena in narrow gap MAG high-rotating-speed arc weldingZHAO Bo,FAN Chenglei,and YANG Chunli State Key Laboratory of Advanced Welding Production Technology,Harbin Institute of Technology,Harbin 150001,China摘 要:The influence of rotating speed on metal transfer and the wire metal speed was studied in the high......
Relationship between Retrographical and Physical Properties of Aggregates庞凌School of Sciences, Wuhan University of Technology摘 要:The relationship between petrographical and physical properties of limestone, basalt, granite and gneiss was investigated. Petrographical data were quantified from polished thin sections with a polarising microscope......
Analysis of cracking phenomena in continuous casting of 1Cr13 stainless steel billets with final electromagnetic stirringYu Xu1,Rong-jun Xu2,Zheng-jie Fan2,Cheng-bin Li2,An-yuan Deng1,En-gang Wang11. Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University2. Research Institute, Baoshan Iron & Steel Co., Ltd.摘 要:
Visible Light Photocatalytic Properties and Thermochromic Phenomena of Nanostructured BiOCl MicrospheresJiushan Cheng,Cong Wang,Yinfang Cui,Ying Sun,Ying ZuoCenter for Condensed Matter and Material... and the black flower-like Bi OCl. It can degrade the methyl orange dye to 20% within 70 min under visible light irradiation. The high activity of the Bi OCl ball-like sphere may own to its special morphology......
Electrokinetic phenomena of poly(vinyl butyral) hollow fiber membranes in different electrolyte solutionsQI Jing(漆静), WANG Yong-qian(王永前), QIU Yun-ren(邱运仁)(1. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;2. Key Laboratory of Resources Chemistry of Nonferrous of Ministry of Education(Central South University), Changsha 410083, China)Abstract......