Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: March 2013
Authors: Wen Xue Wang, Shijie Zhu, Jun Feng Hu, Yukiko Nakahara
Introduction Ceramic materials are considered to be suitable for structure parts applied at high temperatures and in extreme environment, for their outstanding performance in heat resistance, corrosion resistance, wear resistance, strength and rigidity.
On the other hand, the discovery of crack healing behavior of structure ceramic provided a new way to solve the problem of brittleness of ceramic materials[2].
Although the specimens were not heat treated at higher temperature, according to research about Si3N4/SiC particle composite, the strength of the material decreased obviously when the temperature went higher than 1300[4].
Matsuda: Pressureless Sintering of Silicon-Nitride Composites, Composites Science and Technology, Vol.51, No.12 (1994), p.265-269
Jing: Research about Crack Healing Kinetics of Toughening Al2O3 Structure Ceramic from Oxidation Reaction, Journal of Inorganic Materials, Vol.1 (2006), p.187-192.
Online since: July 2014
Authors: Yue Gang Tan, Li Cai, Li Fan, Yi Xie
First, we define the unit type, and select the structural “Shell Elastic 4 node 63” units(shell63) and structural “beam node 4 188”; Sencond,we specify the material performance parameters: the material elastic modulus is 202 GPa ,poisson coefficient is 0.3, and the material density is 7800 kg/m3.
Table1 Model parameters Category Length(a) Width(b) Thickness(m) Support Length(h) Support section (c*c) Values 500mm 500mm 2mm 3*300mm 4*4mm2 Table 2 Material parameters Category Modulus of elasticity Poisson”s ratio Material density Values 202 GPa 0.3 7900kg/ m3 P1 P2 P3 F1 F2 F3 a b c Figure 1 The steel plate model with three layers a -The model size ; b-Model shape; c- Distribution of load and the signal nodes Analysis solution.
Third, we solve the calculation by selecting Menu way :Main Menu > Solution > Solve > Current LS after defining the material properties, meshing, applying the constraints.
Acknowledgements This work was financially supported by the National Natural Science Foundation of China under Grant No.51375358 and supported by the Fundamental Research Funds for the Central Universities 2013-ZY-042.
Journal of Sound and Vibration, 307 (2007),p. 226-249
Online since: March 2004
Authors: Hubert W. King, S. Dost, Hee Dong Kim, In Soo Kim, Dong Young Sung, Min Gu Lee
King 2 1 School of Advanced Materials and Systems Engineering, Kum Oh National Institute of Technology, Kumi, Kyung Buk, Korea, 730-701 2 Department of Mechanical Engineering, University of Victoria, Victoria, BC, Canada, V8W 3P6 Keywords: TiN, Texture, Surface Roughness, Frictional Behavior, Erosion-Corrosion Resistance, Corrosion Resistance, Polarization Test Abstract.
But, to know the relationships between textures and longevity of TiN coated films is a very difficult and complicated problem, because it is related to the mixed characteristics of the TiN coated layers and substrate materials, etc..
The counterpart ball material was alumina, the size of the ball was 5mm diameter, the applied force was 200g and the sliding speed was 0.045m/sec.
In the same substrate materials, the i pass (passive currents) of (115) texture of TiN coated layer is lower than that of (111) texture.
R05-2002-01512-0) of the Korea Science & Engineering Foundation.
Online since: December 2012
Authors: Chun Yang Jiang, Sheng Guo Xia
Introduction During the past decades, pulse technology has been applied widely in the field of ozone generation, pollution control, material surface modification and so on [1].
Figure 2 shows the schematic diagram of single coaxial cable covered with magnetic material.
As a result, the saturation of the magnetic material must be avoided.
The magnetic material of cores is NiZn R250p with permeabilityof 250.
Pemen, Journal of Electrostatics 57 (2003) pp.29–33 [8] D.B.
Online since: January 2013
Authors: Guo Qiang Xu, Lei Cao, Yan Shi, Lin Gao
If mixing properly the plasticizer and the fly ash in clay brick recycled aggregate, there can improve the workability of recycled concrete; if mixing the super plasticizer and the active mineral raw material in clay brick recycled aggregate, there can make the strength of recycled concrete to reach 40-50MPa[3].
Experimental raw materials Cement: P.O32.5 Ordinary cement.
Acknowledgements This work was financially supported by the Tangshan Science and Technology Research and Development Project (12140208A-6).
References [1] Yanqing Zhang: Journal of Building Materials (2003).
(In chinese) [3] Changsheng Wang: Housing Materials and Application (2001).
Online since: October 2014
Authors: Jin Long Zhao, Jian Li, Shou Yin Lu, Jian Xiang Li, Lin Tan
Path planning method based on the geometry[J].Journal of Harbin institute of technology, 2005,37(7):947-949.
Hua Zhong University Of Science And Technology Press,1996.
Advanced Materials Research, 2011, 295: 2125-2128
Applied Mechanics and Materials, 2012, 232: 527-531
Applied Mechanics and Materials, 2011, 44: 1492-1495.
Online since: September 2011
Authors: Wei Min Kang, Jing Yan
Study on Hydrophilic Finish and Performance of Polypropylene Spun-bonded Nonwovens Jing YAN1,a, Weimin KANG*,1,b 1 State Key Laboratory of Hollow Fiber Membrane Materials and Processes, Tianjin Polytechnic University, Tianjin, 300160, China ayanjing_515@163.com, b kweimin@126.com * corresponding authors Keywords: Polypropylene, Spun-bonded Nonwovens, Hydrophilic Finish, Hydrophilic Performance Abstract.
JIN et al. [6] made partial hydrophilic finishing on the PP spun-bonded nonwovens materials considering Sanitary napkin and paper diaper need excellent characteristics of lateral infiltrate.
Studying on feasibility and effect factors of partial hydrophilic finishing using the single factor experiments and orthogonal experiments, the results of study display that hydrophilicity and softness of nonwovens materials are optimal when the concentration of hydrophilic additive is controlled at 1% ~1.5%.
Experiment Material and Equipment.
Mai: Journal of Textile Research, Vol. 11(2000), p.37.
Online since: October 2014
Authors: Corneliu Munteanu, Vasile Ionut Crismaru, Bogdan Istrate, Alexandru Barca, Eduard Sebastian Barca
One used various combinations of materials such as: basic material-basic material, deposited coating-deposited coating.
Fig. 3 Evolution of the friction value in the case of mixed lubrication working conditions of the roll with a NiAlSi coating – basic material drag This sample had the best contact fatigue behavior, a fact which is pointed out by the aspect of the rolling path of Fig. 4.
The transversal section aspect, after the contact fatigue, presents the distribution of the oxides inside the material and micro fissures emerged at the interface of the neighboring splats.
Hahn, Coating bores of light metal engine blocks with a nanocomposite material using the plasma transferred wire arc thermal spray process, Journal of Thermal Spray Technology 17 (3) (2008) 344–351
[3] Czichos, Tribology - a System Approach to the Science and Technology of Friction, Lubrication and Wear, Elsevier, 1978
Online since: August 2015
Authors: D.P. Girish, R. Keshavamurthy, K.V. Shivananda Murthy
It is known that hot plastic deformation processes such as extrusion, rolling and forging of the discontinuously reinforced metal matrix composites can enhance bond between matrix and reinforcement, break up of particle agglomerations, decrease or elimination defects of composites, all of which contribute to improve the mechanical properties of these materials [1-3].
Composites exhibited higher 0.2% proof stress and tensile strength values when compared with unreinforced materials in peak aged conditions.
An average of three results was taken as strength of each material.
Kang, Effects of hot extrusion through a curved die on the mechanical properties of SiCp/Al composites fabricated by melt-stirring, Composites Science and Technology, 59, (1999) 643-654
Dash, Effect of Hot Working on Structure and Tribological Properties of Aluminium Reinforced with Aluminium Oxide, Journal of Materials Engineering and Performance, 21, (2012) 1226-1231
Online since: February 2016
Authors: Alexey Lobanov, Andrey Yu. Fershalov, Olga Dyakonova, Gennady Alekseev
Smith, Controlling electromagnetic fields, Science. 312 (2006) 1780-1789
Schurig, One path to acoustic cloaking, New Journal of Physics. 9 (2007) 45
Mytareva, Invisible cloaking of material bodies using the wave flow method, Phys.
Alekseev, Optimization in problems of material-body cloaking using the wave-flow method, Dokl.
Alekseev, Stability estimates in the problem of cloaking material bodies for Maxwell’s equations, Comp.