Search results

Effect of RE on microstructure and interfacial reactions of SnAgCu solder Yaoli Wang1,a, Keke Zhang1,b, Guoji Zhao2,c, Lijuan Han3,d 1Material Science & Engineering College, Henan University of Science & Technology, Luoyang 471003, China 2Henan Key Laboratory of Advanced Non-ferrous Metals, Luoyang 471000, China 3Pinggao Group Co., Ltd., Henan, Pingdingshan 467001, China awangyaoli001@163.com, bzhkeke@mail.haust.edu.cn, cjgzjgz@sina.com, dhanlijuan.1201@163.com Keywords: SnAgCuRE solder alloy, microstructure, interfacial reaction, Cu6Sn5, surface pattern Abstract.
Experimental Material and Procedure The raw materials are Sn, Ag, Cu (purity 99.9wt%) and mixture RE(rich max Ce, La).
Fan, et al. rare metal materials engineering,Vol.36(2007), p.1473 [2] H.
Rare metal materials engineering, Vol.38(2009), p.107 [8] K.K.
Suganuma..Journal of Alloys and Compounds, Vol.352(2003), p.226 [10] P.

Automotive AAECH’s material is AlSi7Mg, and Fig 1 showed its 3D model in UG NX software, whose basic dimensions was 534mm × 184mm × 86mm and volume was about 3615235 mm3.
After the meshing step, the parameters, such as the materials, heat transfer coefficient, boundary conditions, the number of cycles and the filling and solidification parameters, should be defined.
Davami: Materials & Design Vol. 012 (2004), p. 655
Hopperstad: Computational Materials Science Vol. 64 (2009), p. 100
Bae: International Journal of Mechanical Sciences Vol. 50 (2008), p. 944

Most of the metal material is a non-magnetic material, μr is the main factor of the decision signal transmission velocity.
TDT technology can be used to estimate the equivalent dielectric constant of Ka, for the dielectric loss materials, Ka is equivalent to the dielectric constant εr.
Startup fund (School Kai B2010-10), and Department of education of Heilongjiang Province Science and technology research projects under Grant(12511354).
Journal of Harbin Institute of Technology, Vol.34(2) (2002), p. 245-247 [5] J.M.
Journal of hydrology, Vol.313(2005), p. 235-245 [6] Mark S.

Although the spatial resolution of PPP-BOTDA based technique is 10cm order, the sensing length should be longer than 0.16 m in order to obtain correct measurement with UV fiber due to its internal slippage between bare fiber and coating materials.
Conclusions (1)Based on the experimental result of bare fiber, PPP-BOTDA sensing technique has the ability of 10cm-order spatial resolution. (2) Despite possessing the 10cm order spatial resolution, if sensing length of FOS is less than critical effective sensing length, because of slippage between bare fiber and coating materials of optic fiber.
Acknowledgements This work was financially supported by the Heibei Natural Science Foundation (E2013120), Innovation Program of Hebei provincial office of human resources and social security (81000316).
[2] Zhishen Wu, Kentaro Iwashita, Songtao Xue and Hao Zhang: Experimental Study on Crack Monitoring of PC Structures with Pulse-prepump BOTDA-based Distributed Fiber Optic Sensors, Journal of concrete research and technology, Japan Concrete Institute, (2007) [3] Hao Zhang "Performance Evaluation of PPP-BOTDA-Based Distributed Optical Fiber Sensors," International Journal of Distributed Sensor Networks, vol. (2012), 414692

Materials and methods Experimental materials are garlic produced by Jinxiang which is China's "garlic village" (including white garlic and purple garlic).
Wu: Survey of Garlic Mechanized Planting and Harvesting in China, Jiangsu Agriculture Science, p. 460-461, 2010
Zhou: Evaluation Method for Appearance Quality of Wheat Grai Based on Image Processing and Artificial Neural Network, Journal of Agricultural Engineering, p. 158-161, 2007
Han: Rice Seed Selection Technology Based on Machine Vision,” Journal of Agricultural Machinery, p.168-180. 2010

Experimental Study on Photocatalytic pretreatment of Restaurant Wastewater with nano TiO2 JinYong Huang1,a, LiBin Peng1,b, Lin Peng1,c 1 College of Chemical and Materials Engineering, Beijing Institute of Technology University Zhuhai Champus, Zhuhai, China 519008 ahuangjinyong@163.com, b249704302@qq.com, cpl-egg@163.com Keywords: Photocatalytic oxidation technology, Titanium dioxide(TiO2), Restaurant wastewater Abstract.
Acknowledgements This work was financially supported by Science Development Fund of Beijing Institute of Technology University Zhuhai Champus(2011B05).
Vol. 32(2013) , P. 686 (In Chinese) [5] JIANG Haijun,ZHANG Jin,XI Lihe,ZHU Zhongqi: Journal of Materials.
El-Masry1, Ebtesam El-Bestawy: World Journal of Microbiology & Biotechnology.

The stress-strain relationship of materials The stress-strain relationship of steel.
The material parameters are shown in Table 1.
References [1] L.H.Han: Concrete-filled steel tube structure, theory and practice (Science Press, Beijing, 2007).
Vol. 7(1997), p.72 (In Chinese) [4] P.Y.Lu, Y.P.Song, Z.M.Wu: Journal of Dalian University of Technology, 2001, Vol.41, No.6 (In Chinese) [5] J.H.Shan: Experimental research and finite element analysis of concrete filled steel tubes under impact load (Hunan University, Hunan, 2005).
(In Chinese) [6] Z.Wang, G.Lin, J.Z.Lu: Journal of Dalian University of Technology, 2000, Vol.40, No.5 (In Chinese)

Acknowledgment This work was supported by natural science foundation of the education department of Henan province (No.2010B210009) and doctor foundation of Henan Polytechnic University (No.
Zhu:Advanced Materials Research.
Guo etal: Journal of System Simulation, Vol. 18 (2006) No.8 , pp. 2183
Zhu: Applied Mechanics and Materials Vol. 42 (2011) pp 303
[7] H.Porumamilla, A.G.Kelkar and J.M.Vogel: Journal of Dynamic Systems, Measurement and Control, Transactions of the ASME, Vol. 130 (2008) No.3, pp. 031001.

The property of the raw material Yarn.
Table 1: Viscosity of hemp pole cellulose ether size Name mass fraction content viscosity /( mPa·s) hemp pole cellulose ether 2% 100% 262.4 Experiment Materials.
References [1] Li Shen, Weiguang He: Textile Dyeing and Finishing Journal, 2009, (6)
[4] Fei Wang, Yingchao Ji, Ying Wang: Journal of Dalian Polytechnic University, 2013, (6)
[6] [6] Shen Yanqin, Deping Ben, Xian Qian.: Shanghai Textile Science & Technology, 2009, (8) [7] GB/T 12098-12098, Method for determination for viscosity of starch[S]

Burgers model works better in reflecting the property of viscoelastic materials [5].
Tab.3 shows the material parameters.
Surface layer:AC-13I SBR modified asphalt mixture (3cm) Lower layer:AC-16 base asphalt mixture (4cm) Base: Cement stabilized sand-gravel (34cm) Sub base: sand gravel (15cm) Soil base Fig.6 Pavement structure of Zhanghuan line Tab.3 Parameters of material features Parameters Asphalt surface Water stabilized gravel base Gravel subbase Soil base Thermal conductivity 4680 5616 5148 5616 Density 2400 2200 2100 1800 Heat capacity 924.9 891.7 900 1040.0 Solar radiation absorption rate 0.90 Pavement emissivity 0.81 Absolute zero value -273 Stefan-Boltzmann constant 2.041092×10-4 ABAQUS finite element is used to analyze the problem.
Journal of Tongji University (Natural Science), 2003, 31(2):150~155
China Journal of Highway and Transport, 2001, 14(3):1-5