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Online since: January 2013
Authors: Lu Fan Zhang, Zhi Li Long, Jian Dong Cai, Long Sheng Nian, Ji Wen Fang
FEM Design and Experiment of XY motion Platform in Flip Chip Machine Lufan Zhang1,3, a, Zhili Long2, b, Jiwen Fang1, c, Jiandong Cai4,d, Longsheng Nian1, e 1State Key Lab for Manufacturing Systems Engineering, Xi’an Jiaotong University, Xi’an, 710049, China 2 Shenzhen Key Lab for Advanced Motion Control and Modern Automation Equipments, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen, 518055,China 3Dongguan Huazhong University of Science and Technology Manufacturing Engineering Institute, Dongguan, Guangdong, 523808, China 4Department of Mechanical and Automation Engineering, The Chinese University of Hong Kong, Hong Kong, China azzzhanglufan@163.com, blongworking@163.com, cfjt_617@163.com, djdcai@mae.cuhk.edu.hk, enianlong1989@126.com Keywords: XY motion platform, Flip Chip, Laser Doppler vibrometer, FEM.
The material properties, element types are shown in Table 1.
Table 1 The material properties, the reference value of the unit type Component material Element type Elasticity [[E/ x1010Pa] Poisson ratio Equivalent density [ρ/ x103kg/m3] Guide rail base Stainless Steel SOLID92 7.65 0.3 7.93 Sliding block Stainless Steel SOLID92 7.65 0.3 7.93 others Al2O3 SOLID92 7.1 0.23 2.7 The maximum stress (a) (b) Fig. 3 Static analysis of XY motion platform.
Acknowledgements This work was supported by the following funds: (1) the Introduction of Innovative R&D Team Program of Guangdong Province (2009010051); (2) the Guangdong Key Project (2011A080801004); (3) the Key Joint Project of National Natural Science Foundation of China (U1134004); (4) the Innovation Fund of Harbin Industrial University (HIT.NSRIF. 2013099); (5) the Basic Research Plan of Shenzhen (JC201105160586A).
Chang, Cheng-Yi Liu, Cheng Yu Chen and Jen-Inn Chyi: IEEE Journal of quantum electronics.
Online since: June 2013
Authors: Guang Liang Gao, Ji Xing Lin, Li Yuan Niu, Yong Tian Liu, Zi Mu Shi, Yong Li
Heat Treatments of W6Mo5Cr4V2Si High Speed Steel Yong Li1,a, Liyuan Niu2,b, Jixing Lin3,c, Zimu Shi4,d, Guangliang Gao5,e, Yongtian Liu6,f 1Advanced Material Research and Development Center, Zhejiang Industry&Trade Vocational College, Wenzhou, Zhejiang 325003 China ahustliyong@163.com, bccnly@sina.com, clinjixing@163.com, dwinson531@qq.com, eggl@mail.zjitc.net, 1145580681@qq.com Keywords: W6Mo5Cr4V2Si steel, Heat treatment, Microstructure, Hardness Abstract.
Test method Material.
Xing, The impact wear properties of W6Mo5Cr4V2 cold stamping die steel in quenched state, Journal of HeFei University of Technology (Natural Science), 33 (2010) 1609-1611
Zhang, “The metal material and heat treatment [M]”, Shandong Science and Technology Press, (2008) 99.
Online since: August 2009
Authors: Ji Jie Ma, Jing Yang Sun, G.M. Cheng, B.D. Wu
Rectangle Piezoelectric bimorph Bone conduction auditory Device J.Y.Sun 1a ,G.M.Cheng 2b , B.D.Wu 3c, J.J.Ma 4d 1234 Institute of Mechanical Science and Technology, Jilin University , Changchun,P.R.China. 130025 a sjy2003413002@sina.com, b cgm@jlu.edu.cn,c Wubd@mail.jlu.edu.cn, d margegie@yahoo.com.cn Key words: bone conduction, piezoelectric vibrator, auditory device, signal Abstract.
Introduction Manufacturing technology and Application of many new materials have come a long way in recent years.
Accordingly, the BC research makes great breakthrough in multi-material and compound structure auditory devices which have a trend of miniaturization in outline and perfection in function.
[2] C.Liu, T.Cui and Z.Zhou: Microsystem Technologies Vol.9(6) (2003),p.474-479 [3] D.M.Han: Clinical audiology (People's Medical Publishing House, Chinese 2006) [4] F.X.Zhang, L.K.Wang: Modern piezoelectric Studies (Beijing Science Press, Chinese 2001) (in Chinese) [5] S.M.Hua, P.Zeng, H.W.Zhao, G.M.Cheng and Z.G.Yang: Journal of harbin instituteof tech nology Vol.40(5) (2008),p.788-791(in Chinese) [6] Sabine Reinfeldt, Stefan Stenfelt, Tobias Good and Bo Hakansson: Acoustical Society of America Vol 121(3) (2007),p.1586-1587
Online since: July 2007
Authors: Kazuhiko Ishihara, Tomohiro Konno, Madoka Takai, James Sibarani
Surface Modification by Grafting with Biocompatible 2-Methacryloyloxyethyl Phosphorylcholine for Microfluidic Devices James Sibarani, Tomohiro Konno, Madoka Takai a , and Kazuhiko Ishihara Department of Materials Engineering, School of Engineering, and Center for NanoBio Integration The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan a E-mail: takai@mpc.t.u-tokyo.ac.jp Keywords: Surface modification, nonspecific protein adsorption, poly(MPC) brush, microchannel, high S/N ratio Abstract.
Therefore, to create useful material for many biotechnology applications, interfaces are required that have both enhanced specific binding and reduced non specific bonding.
Water static contact angle was measured by using FACE Automatic Contact Angle Meter CA-W (Kyowa Interface Science.
Polymer Science: Part A; Polymer Chemistry 42 (2004) 2931 [8] R.
Latour, Journal of Biomed.
Online since: October 2007
Authors: M. Ziefle, U. Nackenhorst
When inelastic material behavior has to be considered, additional effort has to be spent onto tracking the history of the material particles within the spatially fixed finite element mesh.
The transport of the material points within the spatial mesh is modeled in a second step, where the advection of history dependent material variables is performed.
It only describes first order effects of the rather complex behavior of rubber like materials.
Tire Science & Technology, 20, 33-56, 1992
Vehicle Systems Dynamics Journal, Supplement 40, 175-194, 2003
Online since: February 2011
Authors: Wu Quan He, Ming Ke Cai, Yu Bao Wang, Shui Rong Zheng
In seasonal frozen soil area, the frost heaving damage of rigid material lined canal is serious.
The most common thermal insulation material is polystyrene foam plastics board.
Materials and methods Raw materials Main raw materials of compound Polyurethane foam plastic board filing with particles of cornstalks are particles of cornstalks, polyether polyol, isocyanate and catalyst, Foaming agent, Foam stabilizer, and antioxidant etc.
Table 2 Comparison of the properties between compound Polyurethane foam plastic board and other insulation materials.
Application of polystyrene foam plastic slabs in frost heaving prevention of canal.Journal of Water Resources and Architectural Engineering, 2003,6(2): 56-57.
Online since: June 2008
Authors: Pablo Hernández-Gómez, J. Íñiguez, V. Raposo
From the beginnings of this technique, Hughes 1879 [1], it was shown that such methods could be used to compare and to classify materials on the basis of conductivity and permeability differences.
The difficulty in knowing precisely µ in ferromagnetic materials, moreover its non-linearity, leads to that this technique have been fundamentally developed in non-magnetic materials.
Hughes, "Induction Balance and Experimental Researches Therewith," The London, Edinburgh and Dublin Philosophical Magazine and Journal of Science, Fifth Series, Vol. 8, No. 46, July 1879, pp. 50-57
Förster, "The First Picture: A Review of the Initial Steps in the Development of Eight Branches of Nondestructive Material Testing," Materials Evaluation, Vol. 41, No. 3, December 1983, pp. 1477-1488
[6] Metals and Materials for Research and Industry.
Online since: November 2012
Authors: Hajnalka Hargitai, Tamás Ibriksz, János Stifter, Endre Andersen
The positive effect of using nanostructured materials in polymer matrix is reported in many papers.
Maleic anhydride grafted polyethylene was used as coupling agent and the blends were reinforced by nanostructured clay materials.
Experiments Materials.
The raw materials were dried before the extrusion and the injection molding at least 16 hours on 80 °C.
B., Morphology and properties of nylon6 and high density polyethylene blends in absence and presence of nanoclay, Journal of Applied Polymer Science 121 (2011) 359-368.
Online since: September 2011
Authors: Jun Hong, Chang Liu Chu, Song Mei Bi
Introduction Natural fiber reinforced thermoplastic composite belongs to environment-friendly materials.
Experiment Materials.
[2] Yaliang Wang, Minge Wang, Junbo Wang: Materials Review, 22: 342-345 (2008).
[3] Yong Cao, Yi Qiang, Gongyi Hetian: Journal of Materials Research, 22 (1): 10-17 (2008).
[4] Zhihong Xiong, Xiaohong Liu, Junhe Zeng: Insulating Materials, 40(6): 7-9, (2007).
Online since: June 2011
Authors: M. Saremi, M. Abouie
Introduction Nano crystalline materials have received considerable interest for their improved physical, chemical and mechanical properties [1].
Many of these applications require a good understanding of corrosion behavior of the materials as a function of microstructure.
Some researchers have been shown that nanostructure materials have worse corrosion resistance [5,6] and some others have shown better resistance in comparison to coarse grained materials [7-9].
Li, “Oxidation behaviour of Cu thin films on Si wafer at 175–400ºC”, Materials Letters 51(2001), PP.78–84
Jiang, “Brief review of oxidation kinetics of copper at 350 °C to 1050 °C”, Metallurgical and Materials Transactions A, Vol. 37A,(2006), PP. 1231- 1237