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Online since: September 2007
Authors: Xun Cai, Zhen Guo Wang
Microstructure and Optical Properties of Ag/TiO2 Multilayers
Zhenguo Wang and Xun Caia
School of Materials Science and Engineering, Shanghai Jiao Tong University,
Shanghai 200030, China
a
xcai@sjtu.edu.cn
Keywords: Silver; Interface; Surface plasma resonance; Optical properties; Microstructure.
Compared with those semiconductor based transparent conductive materials, metallic based materials have higher transmittance in the visible light and lower electrical resistance.
The metal films, which are quite different from bulk materials, consist of metal particles and voids, hence, the optical constant changes with the film thickness.
Fernandez et al.: Journal of Electron spectroscopy and related phenomena Vol. 87 (1997), p. 61-71 [15] Y.
Tepper et al.: Materials letters Vol. 33 (1997), p. 181-184 [17] Rémi Larzzari, Jacques Jupille: Surf.
Compared with those semiconductor based transparent conductive materials, metallic based materials have higher transmittance in the visible light and lower electrical resistance.
The metal films, which are quite different from bulk materials, consist of metal particles and voids, hence, the optical constant changes with the film thickness.
Fernandez et al.: Journal of Electron spectroscopy and related phenomena Vol. 87 (1997), p. 61-71 [15] Y.
Tepper et al.: Materials letters Vol. 33 (1997), p. 181-184 [17] Rémi Larzzari, Jacques Jupille: Surf.
Online since: June 2011
Authors: Saeed Rastegari, A. Ghaderi Hamidi, H. Arabi
Rastegaric
School of Metallurgy and Materials Engineering, Iran University of Science and Technology, IUST, Narmak, Tehran, Iran
aghaderi@iust.ac.ir, barabi@iust.ac.ir, crastegari@iust.ac.ir
Keywords: Tungsten-Copper Composites, Powder Metallurgy, High Pressure Compression
Abstract.
The density starts to increase when the contact pressures exceed the material yield strength [13].
Arc erosion behavior of a nanocomposite W-Cu electrical contact material.
Smith, “Diffusion Mechanism for Tungsten Sintering Kinetics”, Journal of Applied Physics Volume 35(1965), 215
E., “Structural Defects in Infiltrated Tungsten Matrices”, paper presented at the AIME Conference on Applied Aspects of Refractory Materials, Los Angeles, California, December 9-10, 1963.
The density starts to increase when the contact pressures exceed the material yield strength [13].
Arc erosion behavior of a nanocomposite W-Cu electrical contact material.
Smith, “Diffusion Mechanism for Tungsten Sintering Kinetics”, Journal of Applied Physics Volume 35(1965), 215
E., “Structural Defects in Infiltrated Tungsten Matrices”, paper presented at the AIME Conference on Applied Aspects of Refractory Materials, Los Angeles, California, December 9-10, 1963.
Online since: October 2010
Authors: Lei Chen, Bao Shan Gao, Guo Ping Tang, Jun Rong Yu, Jing Zhu, Zu Ming Hu
The molecular formula of it is as follow:
Fibers made from it are important materials with excellent mechnical properties, thermal stability, flame resistance.
Acknowledgment This work is supported by State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, China, No.LZ0914.
Composites Science and Technology, 2007, 13(67): 2786-2794
Journal of Donghua University. 2005,22(4),79-82 [5] Wang Jin, Chen Lei, Yu Junrong,Hu Zuming.
Proceedings of 2009 International Conference on Advanced Fibers and Polymer Materials, Oct.21-24, Shanghai,China, pp:179-181
Acknowledgment This work is supported by State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, China, No.LZ0914.
Composites Science and Technology, 2007, 13(67): 2786-2794
Journal of Donghua University. 2005,22(4),79-82 [5] Wang Jin, Chen Lei, Yu Junrong,Hu Zuming.
Proceedings of 2009 International Conference on Advanced Fibers and Polymer Materials, Oct.21-24, Shanghai,China, pp:179-181
Online since: August 2013
Authors: Jia Sheng Chen, Jiu Yan Wang, Hong Fu
In the broad sense, ancient buildings form is recreated consisted with the traditional cultural characteristics, and the narrow sense is that ancient buildings form was restored by using of traditional building materials in a particular range[4].
They have distinctive regional features due to topography of cutoff basin, climate of small wind and rainy, main materials used in wood, low-impact of orthodox north architecture and so on.
Thirdly, it has both a set of traditional construction craft and scientific use of local materials such as bamboo, wood, soil and stone.
The design and construction depend on these local materials lead to low cost.
[8] ShuJuan Xu, JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY( Social Sciences)Vol. 6 No. 5(Sep. 2005)
They have distinctive regional features due to topography of cutoff basin, climate of small wind and rainy, main materials used in wood, low-impact of orthodox north architecture and so on.
Thirdly, it has both a set of traditional construction craft and scientific use of local materials such as bamboo, wood, soil and stone.
The design and construction depend on these local materials lead to low cost.
[8] ShuJuan Xu, JOURNAL OF SOUTHWEST JIAOTONG UNIVERSITY( Social Sciences)Vol. 6 No. 5(Sep. 2005)
Online since: January 2014
Authors: Yang Yu, Wen Cong Zhan, Yu Chen, Er De Wang
Nanocrystalline Ni-30wt%Fe supersaturated solid solution synthesized by mechanical alloying
Yu Chen1,a Yang Yu2 Wencong Zhan2, Erde Wang2
1 National Key Laboratory for Precision Hot Processing of Metals,Harbin Institute of Technology, Harbin, China
2School of Materials Science and Engineering, Harbin Institute of Technology at Weihai, No.2, West Wenhua Road, Weihai 264209, Shandong Province, PR China
achenyv@hit.edu.cn
Keywords: mechanical alloying; supersaturated Ni (Fe) solid solution; nanocrystallization; microstrain; melting behaviour.
Mechanical alloying, developed by Benjamin in 1970’s to produce oxide-dispersion-strengthened alloys for high temperature structural applications [7], has been widely used to synthesize various metastable materials including supersaturated solid solutions and submicron, nanocrystalline or amorphous alloys [8,9], due to its simplicity, the relatively inexpensive equipment, and the possibility to synthesize essentially all classes of materials.
Experimental Commercial elemental Ni and Fe powders, with a medium particle size of about -400 mesh, were used as the starting material.
Journal of Non-Crystalline Solids 2001; 287: 329 [3] C.
Research Progress in Nanocrystalline Materials by Mechanical Alloying .Powder Metallurgy Technology 2002; 20: 26 (in Chinese)
Mechanical alloying, developed by Benjamin in 1970’s to produce oxide-dispersion-strengthened alloys for high temperature structural applications [7], has been widely used to synthesize various metastable materials including supersaturated solid solutions and submicron, nanocrystalline or amorphous alloys [8,9], due to its simplicity, the relatively inexpensive equipment, and the possibility to synthesize essentially all classes of materials.
Experimental Commercial elemental Ni and Fe powders, with a medium particle size of about -400 mesh, were used as the starting material.
Journal of Non-Crystalline Solids 2001; 287: 329 [3] C.
Research Progress in Nanocrystalline Materials by Mechanical Alloying .Powder Metallurgy Technology 2002; 20: 26 (in Chinese)
Online since: May 2015
Authors: Yuan Yuan Liu, Yun Min Ma, Qing Xi Hu, Hai Ping Chen
This paper presents combining the electrospinning with 3D printing to prepare biological scaffold, making the scaffold have simultaneously macro, micro-structure characteristics, and effectively overcame the limitation of large aperture and small porosity existed in single 3D printing technology.
1 Materials and methods
1.1 Materials
Type B gelatin (American Biotechnology Co., Ltd) and Sodium alginate, Calcium chloride solution (cross-linking agent), polycaprolactone (PCL, average molecular weight is 73000).
The scaffold materials were removed into a small centrifuge, added 1ml of PBS solution, 1ul of Stainning A and 1ul of Stainning B and observed the liability of ADSCs with inverted fluorescence microscope. 2.3.3 Cell proliferation assay Cell proliferation was measured using MTS test.
According to the theory of interaction between cells and materials, wherein the adhesion of cells and material is a base [4], the suitable adhesion must occur before the migration, differentiation and proliferation [5].
Acknowledgements This study is partly supported by National Natural Science Foundation of China (No.51375292, NO.51475281), National Youth Foundation of China (No.51105239).
Chinese Journal of orthopaedic Trauma.12 (2010):471 -475.
The scaffold materials were removed into a small centrifuge, added 1ml of PBS solution, 1ul of Stainning A and 1ul of Stainning B and observed the liability of ADSCs with inverted fluorescence microscope. 2.3.3 Cell proliferation assay Cell proliferation was measured using MTS test.
According to the theory of interaction between cells and materials, wherein the adhesion of cells and material is a base [4], the suitable adhesion must occur before the migration, differentiation and proliferation [5].
Acknowledgements This study is partly supported by National Natural Science Foundation of China (No.51375292, NO.51475281), National Youth Foundation of China (No.51105239).
Chinese Journal of orthopaedic Trauma.12 (2010):471 -475.
Online since: July 2008
Authors: A. Kiet Tieu, Cheng Lu, Yuan Gao, Guillaume Michal
It was developed by Daw & Baskes [7,8] and
has become a powerful potential function for metallic materials.
Typically, a larger size can eliminate the local imperfections and become close to the nature of the material.
Beltz, Materials Sci. and Eng., A 387 (2004) 414-418
Spielmannova, Czechoslovak Journal of Physics, Vol. 55 (2005), No.10
Miyazaki, Computational Materials Science 31 (2004) 269-278
Typically, a larger size can eliminate the local imperfections and become close to the nature of the material.
Beltz, Materials Sci. and Eng., A 387 (2004) 414-418
Spielmannova, Czechoslovak Journal of Physics, Vol. 55 (2005), No.10
Miyazaki, Computational Materials Science 31 (2004) 269-278
Online since: January 2011
Authors: Tetsuyuki Hiroe, Kazuhito Fujiwara, Kiyotaka Tsutsumi, Takuya Igawa, Hidehiro Hata, Wataru Yamashita
Introduction
Explosive loading devices had been developed as simple experimental methods to supply impulsive loads for the study of dynamic responses of materials and structural components.
Fragment energy values (=) in the cylinder model were extensionally adopted for spheres and rings where : the density of materials, S: average circumferential width of fragments for cylinder and ring, average span of fragments for sphere, and: circumferential strain rate at estimated fracture time.
Fig. 5(b) shows that fragmentation energy values based on the model are dependent on materials, strain rates and specimen types or bi-axial ratios.
Takahashi: International Journal of Impact Engineering, Vol.35 (2008), p. 1578 [3] D.
Hightower, in: Shock-Wave and High-Strain-Rate Phenomena in Materials, edited by M.
Fragment energy values (=) in the cylinder model were extensionally adopted for spheres and rings where : the density of materials, S: average circumferential width of fragments for cylinder and ring, average span of fragments for sphere, and: circumferential strain rate at estimated fracture time.
Fig. 5(b) shows that fragmentation energy values based on the model are dependent on materials, strain rates and specimen types or bi-axial ratios.
Takahashi: International Journal of Impact Engineering, Vol.35 (2008), p. 1578 [3] D.
Hightower, in: Shock-Wave and High-Strain-Rate Phenomena in Materials, edited by M.
Online since: March 2006
Authors: T. Tang, Zhuo Zhuang, H.R. Fang, X.M. Zhang, Wei Yang, Ying Zhao
Based on the
test data, a hyperelastic stress-strain relation for the muscle material has been developed.
The integrated study is divided into three parts: building model, material constitution and numerical simulation.
The mechanical function of the heart depends crucially on its material properties.
HUNTER, Computational Mechanics of the Heart (From Tissue Structure to Ventricular Function), Journal of Elasticity 61: 113-141, 2000
Yang), 1998 [9] Feng Yuanzhen, "Biomechanics", Science Publishing Company, Inc, 1983
The integrated study is divided into three parts: building model, material constitution and numerical simulation.
The mechanical function of the heart depends crucially on its material properties.
HUNTER, Computational Mechanics of the Heart (From Tissue Structure to Ventricular Function), Journal of Elasticity 61: 113-141, 2000
Yang), 1998 [9] Feng Yuanzhen, "Biomechanics", Science Publishing Company, Inc, 1983
Online since: July 2013
Authors: Jing Xian Liu, Xiao Pei Liu, Si Si Bian, De Qiang Chang, Ning Mao, Xi Sun
Air purification materials, as the core of the filtering equipment, of which research and development has been widespread concern.
It is expected that filter materials with high efficiency and low resistance, can be applicable to various environment.
Most of the materials are used for air purification for one-time use.
Medium efficiency filtration medias without protecting materials is just through heat treatment and the thickness is small.
Journal of Allergy and Clinical Immunology, Volume 125, Issue 1(2010), pp 32–38
It is expected that filter materials with high efficiency and low resistance, can be applicable to various environment.
Most of the materials are used for air purification for one-time use.
Medium efficiency filtration medias without protecting materials is just through heat treatment and the thickness is small.
Journal of Allergy and Clinical Immunology, Volume 125, Issue 1(2010), pp 32–38