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Online since: June 2015
Authors: Abdul Razak Daud, Muhammad Azmi Abd Hamid, Ibrahim Abu Talib, Dewi Suriyani Che Halin
Among them, the sol-gel process is a promising solution-based process for preparing almost all materials, especially for ceramics and oxides [11].
Acknowledgement The project was partially supported by Science Fund, MOSTI, No 03-01-02-SF0211.
The preparation of copper(II) oxide thin films and the study of their microstructures and optical properties, Materials Chemistry and Physics, 83, (2004), pp. 140-144
J., Galvanostatic deposition and characterization of cuprous oxide thin films, Journal of Crystal Growth, 216, (2000), pp. 304-310
J., Production of cuprous oxide, a solar cell material, by thermal oxidation and a study of its physical and electrical properties, Solar Energy Materials and Solar Cells, 51, (1998), pp. 305-316
Acknowledgement The project was partially supported by Science Fund, MOSTI, No 03-01-02-SF0211.
The preparation of copper(II) oxide thin films and the study of their microstructures and optical properties, Materials Chemistry and Physics, 83, (2004), pp. 140-144
J., Galvanostatic deposition and characterization of cuprous oxide thin films, Journal of Crystal Growth, 216, (2000), pp. 304-310
J., Production of cuprous oxide, a solar cell material, by thermal oxidation and a study of its physical and electrical properties, Solar Energy Materials and Solar Cells, 51, (1998), pp. 305-316
Online since: December 2014
Authors: Shen Jie Zhou, Xing Guang Dong
Introduction
Polyethylene terephthalate (PET) is one kind of semi-crystalline polymer material, which can be used as fibers, films, functional materials and bottles because of its excellent mechanics, solvent resistance, heat resistance, electrical insulation, stiffness and so on.
After modification, the crystalline material changes to amorphous material, which can easily be stretched up to 4-5 times elongation and sustain the large deformation without release them after cooling down, which will lead to high shrinkage performance after heating again.
COC/PETG Film manufacture COC/PETG=30/70 blending materials mixed before entering into twin-extruder, then cooled down by use of cooling roll and receive the base film with thickness about 200micron.
Yagfarov : Polymer science USSR, Vol. 23 (1981), p. 2830-2838 [2].
Xu: Journal of Materials Science, Vol. 24 (2007), p. 6197-6204 [3].
After modification, the crystalline material changes to amorphous material, which can easily be stretched up to 4-5 times elongation and sustain the large deformation without release them after cooling down, which will lead to high shrinkage performance after heating again.
COC/PETG Film manufacture COC/PETG=30/70 blending materials mixed before entering into twin-extruder, then cooled down by use of cooling roll and receive the base film with thickness about 200micron.
Yagfarov : Polymer science USSR, Vol. 23 (1981), p. 2830-2838 [2].
Xu: Journal of Materials Science, Vol. 24 (2007), p. 6197-6204 [3].
Online since: January 2014
Authors: Fa Qiu Hou, Ning Qing, Yong Jun Chen
Experimental
Materials.
Results And Discussion TGA and DSC of PAE and SPAE hybrid materials.
Thermal properties of PAE and SPAE hybri- d materials as illustrated in fig.1.
FT-IR of PAE and SPAE hybrid materials.
[2] Wenbo Liao, Jinqing Qu, et al: Chinese Journal of Chemical Engineering Vol.18 (2010), p.156-163
Results And Discussion TGA and DSC of PAE and SPAE hybrid materials.
Thermal properties of PAE and SPAE hybri- d materials as illustrated in fig.1.
FT-IR of PAE and SPAE hybrid materials.
[2] Wenbo Liao, Jinqing Qu, et al: Chinese Journal of Chemical Engineering Vol.18 (2010), p.156-163
Online since: March 2014
Authors: Xue Peng Liu, Huang Zhi
Introduction
Piezoelectric motor is the collection acoustics, mechanics, electronics, automatic control, tribological mechanism for the integration of the subject, compared with the traditional assolenoid style motor, piezoelectric motor has the following advantages :
1) Piezoelectric motor are more energy density;
2) Machinery with the output torque and low speed characteristics of the work;
3) According to the characteristics of piezoelectric materials, can output the micro displacement, can be used for precision positioning table driven;
4) Piezoelectric motor does not use the electromagnetic effect of the working principle; do not contain their magnetic elements.
In the design of motor parts in the process of piezoelectric, make full use of mathematical modeling and numerical simulation auxiliary optimization design, such as in computer to oscillator wave characteristics, frequency and speed relations, the power input the volume and speed simulation research, then determine the basic structure, motor piezoelectric materials, dimensions, such as design and production parameters.
Substrate materials choose 45 # steel, and the base board processing to ensure that the plane of the parallel degree and roughness.
Rely on piezoelectric equation and pre-tightening force equation analysis, incentive stress analysis for ceramic materials to meet the requirements of the low frequency drive the lower conditions, for ceramic material parameter selection to provide the reference.
References [1] YANG Shuchen , LIU Jianfan , WANG Rui,The Theory of the Low Frequency Piezoelectric Motor Drive Foundation Research and Analysis, Journal of Jilin Teachers Institute of Engineering and Technology, 2011,27(5): 70-73 [2] GAO Rui-rong LI Zhi-hua,etc,Ultrasonic Motor Driving Circuit of The Piezoelectric with Design, Science, 2011,29: 113-114 [3] MA Yuting, ZHAO Juan, etc.Actuator with Multiple Tube Structure and Its Application to Piezoelectric Motors, Piezoelectrics & Acoustooptics, 2010,32(4): 591-595 [4] QI Yong-yue, LIN Yu-chi,etc, Study on piezoelectric micro-motion stage at nanometer-scale, Transducer and Microsystem Technology, 2009,28(6): 53-55
In the design of motor parts in the process of piezoelectric, make full use of mathematical modeling and numerical simulation auxiliary optimization design, such as in computer to oscillator wave characteristics, frequency and speed relations, the power input the volume and speed simulation research, then determine the basic structure, motor piezoelectric materials, dimensions, such as design and production parameters.
Substrate materials choose 45 # steel, and the base board processing to ensure that the plane of the parallel degree and roughness.
Rely on piezoelectric equation and pre-tightening force equation analysis, incentive stress analysis for ceramic materials to meet the requirements of the low frequency drive the lower conditions, for ceramic material parameter selection to provide the reference.
References [1] YANG Shuchen , LIU Jianfan , WANG Rui,The Theory of the Low Frequency Piezoelectric Motor Drive Foundation Research and Analysis, Journal of Jilin Teachers Institute of Engineering and Technology, 2011,27(5): 70-73 [2] GAO Rui-rong LI Zhi-hua,etc,Ultrasonic Motor Driving Circuit of The Piezoelectric with Design, Science, 2011,29: 113-114 [3] MA Yuting, ZHAO Juan, etc.Actuator with Multiple Tube Structure and Its Application to Piezoelectric Motors, Piezoelectrics & Acoustooptics, 2010,32(4): 591-595 [4] QI Yong-yue, LIN Yu-chi,etc, Study on piezoelectric micro-motion stage at nanometer-scale, Transducer and Microsystem Technology, 2009,28(6): 53-55
Online since: March 2013
Authors: Mohamad Rusop, Mohamad Hafiz Mamat, S.Z. Muhamed
The result shows that all films exhibit high absorbance properties in the UV range (<400nm) which indicate the suitability of nanostructured Al doped ZnO as a materials for UV photoconductive sensor application.
[3] Tae-Hyoung Moon, Min-Chang Jeong, Woong Lee, Jae-Min Myoung, Applied Surface Science 240 (2005) 280
Vaidyan, Materials Chemistry and Physics 58 (1999) 71
[6] Zikun Li, Xintang Huang, Jinping Liu, Yuanyuan Li, Guangyun Li, Materials Letters 62 (2008) 1503
Katiyar, Journal of Crystal Growth 287 (2006) 39.
[3] Tae-Hyoung Moon, Min-Chang Jeong, Woong Lee, Jae-Min Myoung, Applied Surface Science 240 (2005) 280
Vaidyan, Materials Chemistry and Physics 58 (1999) 71
[6] Zikun Li, Xintang Huang, Jinping Liu, Yuanyuan Li, Guangyun Li, Materials Letters 62 (2008) 1503
Katiyar, Journal of Crystal Growth 287 (2006) 39.
Online since: December 2012
Authors: Ying Wang
Extended producer responsibility (EPR) is an important part of the concept of Industrial ecology aims at understanding and improving the metabolic pathways of materials in society.
Take-back programs promote OEM to create incentives for companies to redesign their products to minimize waste management costs, by designing their products to contain safer materials or designing products that are easier to recycle and reuse.
EPR urge producers must pay attention from the selection of raw materials to product design, manufacturing, distribution stage, consumption, waste collection and recycling.
Journal of Industrial Ecology, 2003 (7) : 3- 6
European Journal of Operating Research, 2010, 27( 3) : 1269-1279
Take-back programs promote OEM to create incentives for companies to redesign their products to minimize waste management costs, by designing their products to contain safer materials or designing products that are easier to recycle and reuse.
EPR urge producers must pay attention from the selection of raw materials to product design, manufacturing, distribution stage, consumption, waste collection and recycling.
Journal of Industrial Ecology, 2003 (7) : 3- 6
European Journal of Operating Research, 2010, 27( 3) : 1269-1279
Online since: April 2013
Authors: H. Ashrafi, H. Keshmiri, M.R. Bahadori, M. Shariyat
In such studies, the correspondence principle was used and however, the effect of the temperature on the characteristics of the viscoelastic materials was ignored [2-3].
Ashrafi et al. [15-17] proposed a boundary element formulation based on the viscoelastic differential constitutive equations of nonhomogeneous materials.
Jiang: Journal of Mathematical Analysis and Applications Vol. 217 (1998), pp. 423–458
Farid: International Journal of Engineering Vol. 23 (2010), pp. 149–163
Shariyat: Advanced Materials Research Vols. 463–464 (2012), pp. 499–504.
Ashrafi et al. [15-17] proposed a boundary element formulation based on the viscoelastic differential constitutive equations of nonhomogeneous materials.
Jiang: Journal of Mathematical Analysis and Applications Vol. 217 (1998), pp. 423–458
Farid: International Journal of Engineering Vol. 23 (2010), pp. 149–163
Shariyat: Advanced Materials Research Vols. 463–464 (2012), pp. 499–504.
Online since: March 2013
Authors: Subbaiyan Sugapriya, Rangarajalu Sriram, Sriram Lakshmi
The most widely used methods for generating silver nanowires are various chemical routes, such as the polyol process, wet chemical synthesis, the hydrothermal method and porous materials templates [7].
Hu, “A simple approach to the synthesis of silver nanowires by hydrothermal process in the presence of gemini surfactant,” Journal of Colloid and Interface Science, 298 (2006) 689–693
Sun, “Large-scale synthesis of uniform silver nanowires through a soft, self-seeding, polyol process,” Advanced Materials, 14 (2002) 833–837
Wei, “Construction of silver nanowires on DNA template by an electrochemical technique,” Materials and Design, 28 (2007) 722–725
Xia, “Rapid synthesis of silver nanowires through a CuCl- or CuCl 2-mediated polyol process,” Journal of Materials Chemistry, 18 (2008) 437–441
Hu, “A simple approach to the synthesis of silver nanowires by hydrothermal process in the presence of gemini surfactant,” Journal of Colloid and Interface Science, 298 (2006) 689–693
Sun, “Large-scale synthesis of uniform silver nanowires through a soft, self-seeding, polyol process,” Advanced Materials, 14 (2002) 833–837
Wei, “Construction of silver nanowires on DNA template by an electrochemical technique,” Materials and Design, 28 (2007) 722–725
Xia, “Rapid synthesis of silver nanowires through a CuCl- or CuCl 2-mediated polyol process,” Journal of Materials Chemistry, 18 (2008) 437–441
Online since: July 2007
Authors: Yu Ying Yang, Hong Sheng Liu, Chun Feng Li
Li
School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,
People's Republic of China
a
hs_liu_hit@163.com
Keywords: superplastic forming, meshless method, finite element method, large deformation.
The simulation of metal forming problems involves geometric, material, and contact non-linearities, and thus requires advanced numerical techniques.The finite element method (FEM), which has been used in these aforementioned applications, presents some limitations when the mesh becomes highly distorted.
A material kernel function that deforms with the material was introduced to assure the stability during large deformations.
International Journal for Numerical Methods in Engineering .Published online in Wiley InterScience 2005
Zhang, Q.Y.Zhao and C.W.Wangetc: Journal of Materials Processing Technology Vol. 55(1995), p.24
The simulation of metal forming problems involves geometric, material, and contact non-linearities, and thus requires advanced numerical techniques.The finite element method (FEM), which has been used in these aforementioned applications, presents some limitations when the mesh becomes highly distorted.
A material kernel function that deforms with the material was introduced to assure the stability during large deformations.
International Journal for Numerical Methods in Engineering .Published online in Wiley InterScience 2005
Zhang, Q.Y.Zhao and C.W.Wangetc: Journal of Materials Processing Technology Vol. 55(1995), p.24
Online since: May 2012
Authors: Yong Zhang, Ping Xu
Users focus on its inner spririt rather than its material fuction,which deeply prolongs its lifecycle.
Finally, material resources are wasted.
Facilitating disassembly means the parts and materials of products can be easily and economically separated.[6]The possibility of easy separation of the parts facilitates the repairs and updating of the products,even favours the reuse of the abandoned parts to change into a new product.
Jasper,B.Casper:International Journal of Sustainable Engineering Vol.1(2008) No 1,pp.9-20
NA: submitted to Packaging Journal(2010) [5] T.
Finally, material resources are wasted.
Facilitating disassembly means the parts and materials of products can be easily and economically separated.[6]The possibility of easy separation of the parts facilitates the repairs and updating of the products,even favours the reuse of the abandoned parts to change into a new product.
Jasper,B.Casper:International Journal of Sustainable Engineering Vol.1(2008) No 1,pp.9-20
NA: submitted to Packaging Journal(2010) [5] T.