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Effect of Frequency and Duty Cycle on Growth, Structure and Corrosion Resistance of Micro Arc Oxidation Coating on RZ5 Magnesium Alloy Ram Kumar V.1,a, Muthupandi V.1,b*, Sivaprasad K.1,c, Bala Srinivasan P.2,d 1Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli, India 620015 2School of Mechanical Engineering, SASTRA Deemed University, Thanjavur 613 401, India aramkumarvel92@gmail.com, *bvmuthu@nitt.edu, cksp@nitt.edu, dbala.srinivasan@mech.sastra.edu Keywords: Micro arc oxidation, Magnesium alloy, Corrosion Abstract: Magnesium alloys inherently possess poor corrosion resistance.
RZ5 is used as gear box materials in various makes and models of helicopters, because of its castability and weldability combined with superior mechanical properties [5].
Conclusion In this study, two different frequencies and duty cycles were employed to produce ceramic coatings on the RZ5 magnesium alloy specimens, and the following are the key conclusions drawn: 1.

Improvement of Adhesion Strength of Electroless Nickel Coating on AZ91D by Anodized Oxide Interlayer Hsien-Ta Hsu and Tsong-Jen Yanga Department of Materials Science and Engineering, Feng Chia University, Taichung, Taiwan ayangtj@fcu.edu.tw (corresponding author) Keywords: Adhesion; Anodizing; Corrosion resistance; Electroless plating; Magnesium alloys Abstract.
Therefore, a good adhesion with pore (or crack) free and chemically inert deposition are the key points for the surface coating on Mg alloys.
Materials science and engineering an introduction, John Wiley & Sons, New York, 2003

Optimization of Technology of Emulsion Polymerization with High Solid Content and SAS Regression Procedure Chenyang Zhao1, a, Jujie Ren2,b, Shaoying LI1, c and Jinsong Ma1, d 1 College of Materials Science and Engineering , Hebei University of Science and Technology, Hebei Shijiazhuang 050018 2 College of Science , Hebei University of Science and Technology, Hebei Shijiazhuang 050018 aemail:zhaocf2005@yahoo.com.cn,bemail: renjji@yahoo.cn cemail: sendy209@gmail.com, demail: majinsong01@hebust.edu.cn Keywords: high solid content, random-design method, SAS, interaction Abstract.
Experimental Materials Styrene and butyl acrylate were purchased from Beijing Oriental Chemical Co., Acrylic acid (analytical grade) was obtained from Tianjing Institute of Chemical Reagent.
AES was acquired from Beijing Hongkai Yongsheng Refinery Chemical Engineering Ltd.
(3) The major influential factors to the apparent viscosity of emulsions are the solid content of emulsion, the interaction between the emulsifier content and solid content, the interaction between the initiator concentration and reaction temperature, the interaction between functional monomerand reaction temperature Acknowledgements The Project Supported by the key Basic Research Program of Applied Basic Research Plan in Hebei Province of China（Program No. 09965121D） References [1] M.

Thermal design of automotive headlamp with high power LED Jing Wang 1, a, Yi-xi Cai 1,a Chun Zhang1,a,Xin-jie Zhao1,a, Xiao-hua Li1,a, Jing Wang2,a 1 School of automotive and traffic engineering, Jiangsu University, Zhenjiang, Jiangsu Province, China 2 Vehicle Product Laboratory of Jiangsu University, Zhenjiang, Jiangsu Province, China ajackywang03@163.com Keywords: Automotive headlamp; High power LED; Heat pipe; Junction temperature Abstract.
The heat pipe used in the experiment is a copper and water unit, the working fluid in the loop is water and the porous wick structure material is copper mesh.
The heat pipe shell material is copper and the internal working medium is water with added additives.
Even in the 80℃ environment temperature, it can meet the working requirements of LED headlamp low beam system; it is a kind of feasible cooling scheme. 6 ACKNOWLEDGMENT This work is financially supported by ‘Graduate students’ scientific research innovation project of Jiangsu ordinary university (CXZZ12_0673)’ and ‘Jiangsu provincial key laboratory of automotive engineering (QK12001)’.
Thermal analysis of LED arrays for automotive headlamp with a novel cooling system, IEEE transactions on device and materials reliability, 8(3), 561-564

Chu School of Mechanical Engineering, Hangzhou Dianzi University, P.R.China 310018.
Kevin@hdu.edu.cn Key Words: Stamping; Progressive Die; Strip Layout; Operation Sequencing Abstract.
The distances between pairs of stamping features are compared with a pre-defined, practical, desirable minimum distance, which in turn is determined by the stamping material type and dimensions of standard dies and punches [5].
Proceedings of Institution of Mechanical Engineers, Part B, Journal of Engineering Manufacture, 210(1996), p. 367-376

Aluminium Extrusion Weld Formation and Metal Flow Analysis in Hollow Profile Extrusions of Different Section Thickness Yawar Abbas Khan1,a, Henry Sigvart Valberg1,b 1Norwegian University of Science and Technology, Department of Engineering Design and Materials, Richard Birkelands vei. 2B, 7491 Trondheim, Norway.
The billet material splits into metal streams by bridges holding the mandrel.
In partial extrusion the deformed billet material and the contrast material pins remain inside the cylinder, as they extend around the bridge and down through the welding chamber.
Plastic behaviour of the material in simulations was described after collecting flow stress data of the billet material alloy AA6005.
Werkhoven, “Towards predictive control of extrusion weld seams: an integrated approach” Key Eng.

Photocatalytic H2 evolution under visible-light irradiation on modified TiO2 catalysts Huirong Liang1,2,a, Liejin Guo2,b 1Xi’an Shiyou University, Xi’an, China 2State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an Jiaotong University, Xi’an, China ahrliang@mail.xjtu.edu.cn, blj-guo@mail.xjtu.edu.cn Keywords: hydrogen evolution, photocatalyst, titanium dioxide.
In addition, as a simple structure and excellent stability, TiO2 is also the best model material to study photochemical and photophysical properties of the catalysts.
The reference sample of TiO2 is prepared with butyl titanate, isopropyl alcohol and concentrated nitric acid as raw materials by the sol-gel method.
The identification and molecular structure of the materials are confirmed by the Raman spectra which are performed on the Jobin Yvon LabRAM HR Spectrometer using 514.5nm irradiation from an argon ion laser at 20 mW.
[26] Meng N, Leung MKH, Leung DYC, et al: Solar Energy Materials and Solar Cells Vol. 90 (2006), p. 2000

Structural Evolution and Microwave Dielectric Properties of Ba(Co1/3(Nb1-xW5x/6)2/3)O3 Ceramics Zhefei Wanga*, Chenyao Zhaib and Xuhong Wangc Department of Chemistry and Materials Engineering, Changshu Institute of Technology, Changshu 215500, China a*wangzhefei19880826@126.com, b1003607352@qq.com, cwangxuhongjp@cslg.edu.cn Keywords: complex perovskite; dielectric property; 1:2 ordered structure; W6+ substitution Abstract.
Introduction Microwave dielectric ceramics are the core materials for microwave resonators and filters which are the prime components in wireless telecommunication systems, such as mobile communications, satellite broadcasting.
Excellent microwave dielectric materials generlly meets the demands of high dielectric constant (εr), low dielectric loss (high Q×f) and near-zero temperature coefficient of resonant frequency (τf ) [1, 2].
Acknowledgements This work was supported by Technology Projects of the Scientific Innovation Research of College Graduate in Jiangsu province (project No.CXLX13_403), the Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure (project No.SKL201309SIC) and Science and Technology Projects of Guangdong Province (project No.2011A091103002), College Industrialization Project of Jiangsu Province (JHB2012-12), Scientific Research Project of Changshu Institute of Technology (XZ1522).
Low loss dielectric materials for LTCC applications: a review, Int Mater Rev 53 (2008) 57-90

Mechanism of precipitate removal of arsenic and bismuth impurities from copper electrolyte by antimony Faxin XIAO1,2,a, Dao CAO1,b,Jianwei MAO1,b,Xiaoni SHEN1,c 1School of materials science and engineering, Henan university of science and technology, Luoyang, Henan, 471003, China; 2Henan key laboratory of advanced nonferrous metal materials, Luoyang, Henan, 471003, China a: hkdxfx@163.com. b: hkdyejin@163.com. c:shen135@163.com Keywords: mechanism; removal; copper electrolyte; self-purification; arsenic; antimony; bismuth Abstract: This paper aims to discover the mechanism of removal of arsenic and bismuth from copper electrolyte under the function of antimony.
Introduction The production of copper from sulphide raw materials by pyrometallurgical processing leads to the production of impure copper anodes which can not meet the requirement for purity in the most applications fields, thus, copper must be electrorefined[1].
The conventional treatment has a number of disadvantages: (i) difficult materials handling, (ii) energy consumption, (iii) possibility of forming toxic arsine gas and (iv) loss of high value copper in a low value recycle product [3].

Adsorption Research of Tetracycline from Water by HCl-modified Zeolite Yan-li Zou1, Hong Huang1,2*, Ming Chu1, Jianwei Lin1, Da-qiang Yin2, Ya-nan Li1 1 College of Marine Science, Shanghai Ocean University, Shanghai 201306, China; 2 Key Laboratory of Yangtze Water Environment, Ministry of Education, School of Environmental Science & Technology, Tongji University, Shanghai 200092, China.
Materials and Methods: Materials.
Gessa, Alberto Alberti, Annalisa Martucci; Journal of Hazardous Materials,Vol.178 pp.218-225, ( 2010) [3] Wan-Ru C., Ching-Hua H, Chemosphere,Vol.79 779-785,( 2010) [4] Jin K., Hui-juan L., Yu-Ming Z., Jiu-hui Q., J.
Journal of Hazardous materials(2011) [8] B.H.
Ahmad, Chemical Engineering Journal,Vol.144 pp.235-244(2008) [9] R.