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Online since: June 2013
Authors: Dong Yan Tang, Zai Qian Yu, En Ying Jiang
The hybrids of polymer/inorganic nanoparticle materials with temperature sensitivity, will make inorganic particle produce switching effect with change of temperature.
Nayak: Soft nanotechnology with soft nanoparticles, Chemistry of Materials, No. 16 (2004), p. 2623–2627
[10] Okamoto: Recent advances in polymer/layered silicate nanocomposites: an overview from science to technology, Materials Science and Technology, No. 22 (2006), p. 756–779
Lee: Characterization of organobentonite used for polymer nanocomposites, Materials Chemistry and Physics, No. 85 (2004), p. 410–415
[15] Ch.W.Wang: One-pot preparation of thermoresponsive silica-poly(N-isopropylacrylamide) nanocomposite particles in supercritical carbon dioxide, Journal of Colloid and Interface Science, No. 343 (2010), p. 141–148
Online since: April 2009
Authors: Wen Zhen Li, Fei Peng Gao, Qiong Yuan Zhang, Shi Ying Liu
Influence of Ultrasonic Processing on Nano-Sized Particle Dispersion in Magnesium Matrix Nanocomposites Liu Shiying1,2,a, Gao Feipeng1,2, Zhang Qiongyuan1,2 and Li Wenzhen1,2 1 Dept. of Mechanical Engineering, Tsinghua University, Beijing, 100084, China 2 Key Laboratory for Advanced Materials Processing Technology, Ministry of Education, Beijing, 100084, China a zqqlwz@tsinghua.edu.cn Keywords: magnesium matrix composite, nano-sized particle dispersion, ultrasonic processing Abstract The parameters of ultrasonic processing have important effects on the distribution and dispersion of nano-sized particles in magnesium matrix nanocomposite (MMNC) fabrication.
C. (2004) Microstructure and microhardness of SiC nanoparticles reinforced magnesium composites fabricated by ultrasonic method, Materials Science and Engineering A 386, 284-290 [2] Cao, G., Konishi, H. and Li, X. (2008)Mechanical properties and microstructure of SiCreinforced Mg-(2,4)Al-1Si nanocomposites fabricated by ultrasonic cavitation based solidification processing[J] Materials Science and Engineering A486, 357-362 [3] Eskin, G.I. and Eskin D.G. (2003) Production of natural and synthesized aluminum-based composite materials with the aid of ultrasonic (cavitation)treatment of the melt, Ultrasonics Sonochemistry 10, 297-301 [4] Matsunaga, T., Ogata, K. and Hatayama, T.(2007) Effect of acoustic cavitation on ease of infiltration of molten aluminum alloys into carbon fiber bundles using ultrasonic infiltration method, Composites A 38, 771-778 [5] Pan, L., Tao, J. and Liu, Z.
L. (2005) Zinc matrix composites prepared by ultrasonic assisted casting method, The Chinese Journal of Nonferrous Metals 15(3), 104-109 [6] Tao, J.(2007) An Introduction to New Technique of Fabricated Metal Matrix Composites, Chemical Industry Press, 82 (a)20kHz,4kW, 0.5% nSiC (b)20kHz, 1.4kW, 0.5% nSiC
Online since: February 2008
Authors: J. Lin, C.K. Lin, Xiu Mei Han, M. Yu, Xiao Qin Wang, Xi Wei Qi
Wang 1 1 Department of Materials Science and Engineering, Northeastern University at Qinhuangdao Branch, Qinhuangdao 066004, P.
Ca2R8(SiO4)6O2 (R = Y, Gd, La) is a kind of ternary rare-earth-metal silicate with the oxyapatite structure, which has been used as host materials for the luminescence of various rare earth and mercury-like ions [2-4].
The core-shell morphology can be used as a precursor form to produce hollow spheres [6] or to lower the cost of precious materials by coating them on inexpensive cores [7, 8].
Grabmaier: Luminescent Materials (Springer-Verlag, Berlin Heidelberg 1994) [2] J.
Lin: JOURNAL OF RARE EARTHS Vol. 22 (2004), p. 825
Online since: August 2012
Authors: Fa Feng Xia, Yi Fang Yin, Liang Miao, Chun Hua Ma
Current Opinion in Solid State & Materials Science.
Nanostructured Materials.
Materials Protection.
Journal of the Electrochemical Society.
Materials Research Society Symposium Proceedings.
Online since: April 2015
Authors: E.S. Parfenova, Anna G. Knyazeva
Knyazeva1,2,3,b 1National Research Tomsk Polytechnic University, Institute of High Technology Physics, Lenin Street, 2a, Building 11, Tomsk, 634050, Russia 2Institute of Strength Physics and Materials Science of the Siberian Branch of the Russian Academy of Sciences, 2/4 pr.
Introduction The most effective method of improving the performance properties of the material (e.g., such as corrosion resistance, wear resistance, fatigue strength, etc.) is an ion implantation method [1].
The first of them gives the relationships between the components of stress and strain tensors: , (1) ; , (2) where , , are Lame coefficients, is the elastic compression modulus; is the difference between the coefficients of concentration expansion for the implanted element and the basic material ; is the viscous pressure; are elastic stresses, is the difference between the coefficients of concentration expansion for vacancies and the base material .
Kozlov, Long-range effects in the ionimplanted metallic materials.
Ilina, Russian Physics Journal, no 5/2 (2012) 34-41
Online since: July 2011
Authors: Rui Zhang, Song Yang Zhang, Xing Zhang, Cheng Cheng Wang
Metal ceramic composite are adding ceramic particle powder to metal, also called powder dispersion reinforced materials, Its unique properties with extensive use value.
The Structure of The Device The Materials of The Device.Because this device with liquid aluminum contact at work, so the requirement parts to high temperature resistant.
For economic and can achieve purpose decided to adopt painted in parts adiabatic high temperature resistant materials.
The device should be in two gears, liquid aluminum runner wall and base runner wall coated RCC adiabatic high temperature resistant materials.
Base using iron materials, materials stability is out of shape not easily.
Online since: January 2014
Authors: Xing Ming Zhao, Chun Hong Li, Hai Tao Zhou, Shou Fan Rong, Bao Guo Yang
Validated by actual working condition, hammer handle can be replaced at least five times for this design of hammer, and each group has 24 hammer heads, every 5 sets of hammer heads can save 1200 kg metallic materials, 1800 KWh and CO2 emissions dropped by 1795 kg.
Introduction Hammer crusher [1] is a crushing machine which is widely used in many industries such as cement, metallurgy, mining, coal, building materials and transportation.
It is used for mining of ore crushing into suitable for grinding materials, but the workload is very heavy and working conditions are extremely harsh.
a b (a) ×100 (b) ×1000 Fig.4 The metallographic structure of high chromium cast iron after heat treatment Value on the mechanical properties of the two materials are shown in table 2.
Journal of Iron and Steel Research, International, 2011, 18(1): 546-549 [4] Shen Da-dong, Jin Bao-shi, Wang En-lu.
Online since: September 2013
Authors: Yan Liu, Jian Ming Wang, Yang Liu, Qian He Ma
Experiments Experimental Materials.
When the steel melted totally, the magnesium powders sintered body was added into the molten steel though the material feeder.
As experimental materials had highly active materials in the test, the argon was used to cut off the air to make sure that the experiment went smoothly.
Arakane: Quarterly Journal of the Japan Welding Society Vol. 21 (2003), p. 267-273 [3] X.Y.
Chen: Materials Science and Technology Vol. 13 (2005), p. 368-371
Online since: April 2011
Authors: Zai Chang Wang, Meng Zang, Xin Zhang, Xiao Zhe Liu
Design and Simulation of Emulsion Winch Based on Virtual Prototype Xin Zhanga, Meng Zangb, Xiaozhe Liuc and Zaichang Wangd College of Mechanical and Electronic Engineering, Shandong University of Science and Technology, Qingdao, 266510, P.
The allowable stress of drum material is 375MPa, the maximum stress is less than the allowable stress, so the strength can meets the design requirement and the design is reasonable.
Acknowledgment This research is supported by the national natural science foundation of China (No. 50875158), and scientific innovation team supporting project of SDUST.
Liu: Journal of Shandong University of Science and Technology (Natural Science) Vol. 24 (2005), p. 14-17 [5] E.
Kobayashi: Journal of Mechanical Science and Technology Vol. 23 (2009), p. 1083-1088
Online since: August 2014
Authors: Tao Li, Li Ming Zhou, Rong Yuan, Xiao Jin Fu, Hang Ye, Chun Lan Que
The Fruit-picking Robot Fu Xiaojin1, Yuan Rong2, Li Tao3, Zhou Liming4, 5Ye Hang, 6Que Chunlan 1,5,6 School of Mechanical Engineering,Shanghai Dianji University, Shanghai200245,China 2,3 Shanghai Institute of Spacecraft Equipment, Shanghai200240,China 4University of Shanghai for Science and Technology, Shanghai200093, China 616419461@qq.com Key words: fruit picking robot, hydraulic scissor lift, worm and gear, slider-crank mechanism Abstract: To reduce labor intensity and production cost, improve labor productivity and product quality; we design the fruit picking robot.
Depending on the difference of the size of the crawler or the grip tool, material, weight, shape or other physical and chemical state, the robot has different type of the end actuator, for example, clamp -type robot, robot adsorption, special class robot, multi-fingered robotic bionic.
Acknowledgement Project supported by the National Natural Science Foundation, China (No. 11202078), Educational Commission of Shanghai of China (13ZZ145), Foundation of Shanghai Dianji University (N0:10C102) Natural Sciences Foundation of Shanghai Committee of Science and Technology, China (11ZR1413800) Reference [1] Xie Zhen-li.Fruit-picking robot[J].South Agricultural Machinery 2007.5 [2] Lu Wei.
Citrus picking robot structure design and kinematics algorithm[J].Journal of Southeast University,2011.1 [3] Robotics Competition in the ascendant.Robot technology and application.2003,2 [4] Steve C,Andy R,Russ T,et a1.Efficient bipedal robots based on passive-dynamic walkers[J].Science,2005,307 [5] Lu Huai-min.Trees cones gathering robot design and test[J].Journal of agricultural machinery,2001,32(6):52-58 [6] Zhang Jie ,Li Yan-wen, The research status of harvesting robot, problems and countermeasures,Mechanical design[J],2010 [7] Shi Xiao-yu,Wang Xiao-feng,Cut the amount of deflection of fork lifts determination and quality indicators[J] ,2008