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Online since: July 2017
Authors: Volker Piotter, Metin Tueluemen, Thomas Hanemann, Michael J. Hoffmann, Rainer Oberacker
Flow paths in the machinery parts, rheological properties of binding system, fiber content and the fiber orientation have significant effect on the flow behavior of the feedstock, fiber -orientation, -distribution & -length, which are crucial to understand the properties of end-parts like mechanical reinforcement of the fibers.
Besides the material related issues, the type of shaping-process and the processing parameters required equivalent attention that affect directly the finished product properties.
Finally, sintering temperature & time have a determinant role on microstructure; hence, they influence the physical properties, like density, toughness, etc.
Above 2,2 mg/m² dispersant all the solid content would be covered at least once and the fiber breakage did not affect the measurement as much as at 1,1 mg/m² dispersant.
The future works will concentrate on diagnosing and improving the mechanical properties in association with the predictive factors of this study like fiber content, fiber orientation and temperature, but also alternatively sintering time and fiber length.
Online since: April 2012
Authors: Ahmad Kamal Ariffin, A.E. Ismail, D.A. Wahab, M.R. Jamli, I.A. Shah
As the experimental will be simulated by FEM, the accuracy of the inverse method is also affected by various computational factors.
Table 1 shows the mechanical properties of the material.
Table 1 Mechanical properties of DP600 sheet steel Material Young’s modulus[GPa] Poisson Ratio Yield Stress[MPa] Density[kg/m3] DP600 207 0.3 420 720 Displacement load BC: symmetry BC: Uy=Uz =0 BC: symmetry BC: ROTx =0 Fig. 3 Three point bending test FE-model By assuming the three-point cyclic bending test as a part of metal forming processes, quasi-static analysis has been considered to determine the reaction force at the loading point.
The loading rate shall be artificially increased to a factor of 1000.
This could be performed by artificially increase the mass to a factor of 1000000.
Online since: March 2006
Authors: Seong Hyok Kim, Tae Sam Kang, Jang Gyu Lee, Woon Tahk Sung
The proposed structure is designed to have good properties such as heavy proof mass, a large movement and high moving velocity of the proof mass at an operating frequency.
It has various desirable properties such as low power consumption, rigidity, and cheap fabrication by mass-producing process [1-6].
The resonant frequency is an important factor of the operation of the gyroscope.
But the case of feedback controlled system, such a change is not so an influencing factor.
From the figure, controlled system is hardly influenced by the frequency deviation of two modes, whereas the system without control is greatly affected.
Online since: August 2013
Authors: Hye Ran Kim, Seung Ju Han, Hyun Do Yun
The effect of a special SRA on the fresh properties, such as flow and air content, and hardened properties of SHCC materials was investigated.
Tensile properties of cement composites.
The mechanical properties of PVA fibers are shown in table. 2.
Mechanical Properties of PVA fiber Fiber Unit weight Length Diameter Aspect ratio Tensile strength Elastic modulus (kg/m3) (mm) (μm) (MPa) (GPa) PVA 1,300 12 39 307 1,600 40 Table 3.
Properties of SRA used in this study.
Online since: April 2019
Authors: Marek Tarraste, Vytenis Jankauskas, Maksim Antonov, Egidijus Katinas
Results help to identify and understand melting and solidification of grains affected at high temperature.
Unfortunately, there are other negative factors as well: deformation and structural changes, sinking of reinforced material in lower density matrix (could be visible in cross-section) [8,9].
SEM and EDS analysis of microstructure shows behaviour of particles affected by temperature.
In interdiffusion zone, Co was changed by Fe because of their similar properties.
This temperature and holding time are very good for connection between matrix and small hardening phase but results in reduction of mechanical properties of W2F2C or W6Fe6C [13] (Fig. 6b).
Online since: September 2021
Authors: L.A. Smirnova, E.V. Salomatina, Olga A. Ryabkova, Mariia Shirokova
From the point of view of solving environmental problems the development of intellectual adaptive self-cleaning coatings capable of reversibly switching mode and decompose pollution to harmless components under the influence of natural factors is the promising way [6].
Such composites exhibit photocatalytic properties and a switchable wetting mode [20].
Results of physical and mechanical tests of overlapped substrates.
Fujishima, Self-Cleaning Particle Coating with Antireflection Properties, J.
Watanabe et al., Transparent Superhydrophobic Thin Films with Self-Cleaning Properties, J.
Online since: May 2011
Authors: Zhao Hui Han, Pei Xian Zhu, Xiu Qin Yang, Jian Xu
The electrochemical properties of the composite electrode materials is also much better than pure Ti anode, and preparation conditions on electrochemical properties and the resistivity is consistent with law.
This also shows that the conductivity of metal matrix will directly affect the catalytic properties of electrode materials for electrochemical.
The conductivity of the base metal will directly affect the catalytic properties of the electrochemical electrode materials[2], but Ti the resistance rate is high in the coating of titanium anode substrates, resulting in high electrode potential, as uneven distribution of surface potential to further improve anode comprehensive performance of the main bottlenecks.
Therefore, the thickness of the brittle phase which impact on the resistivity of Ti-Al composite materials is the main factors. 3) The electrochemical properties of the composite electrode materials Excellent electrochemical performance has a vital role to the application of electrode material.
Therefore, the electrochemical properties of the composites were tested by the electrochemical analyze instrument.
Online since: June 2011
Authors: M.E. Aalami-Aleagha, S. Pirmoradi, M. Foroutan
Distribution of residual stresses in the welded pipes is affected by several factors, such as pipe geometry, input heat, welding sequence and joint groove geometry.
Several three dimensional models are presented in the last decay[4-6].In these models a simple mesh has been used and effects of factors such as pipe geometry, electrode speed and input heat power have been studied.
In these elasto-plastic analyses, elastic strain are modeled by isotropic Hook's law with temperature dependent mechanical properties, given in Table 2.
For the plastic part of deformation, Von Mises isotropic bilinear hardening model with temperature dependent material property was used.
Thermo-mechanical properties of tube are given in Table 2.
Online since: March 2016
Authors: Fakhrozi Che Ani, Koh Yunn Teng, Zamri Samsudin, Azman Jalar, Norinsan Kamil Othman
The rate of the dendrite growth was affected by the concentration of the medium used.
In conjunction with this, the solder material used has become a dominant factor that will affect the reliability of a product.
Referring to [4], the overall properties which include mechanical properties and reliability of lead-free solders as Sn-Pb solder replacements is undoubtedly very promising.
Yet, the properties of these lead-free solder alloys in corrosive environments have not been widely reported even though it is an important issue in automotive, aerospace, maritime and defense applications.
Tanaka, Factors leading to ionic migration in lead-free solder, ESPEC TECHNOLOGY REPORT No 14. 2002 [10] D.Q.
Online since: August 2021
Authors: Vasiliy Smirnov, Ekaterina Suraeva, Dmitry Svetlov, Victor Afonin, Irina Erofeeva, Tatyana F. Elchishcheva
The materials’ properties were investigated using physical, mechanical and biological research methods.
Variable factors Х1, Х2 and Х3 were selected taking into account the optimization criterion.
Effect of chrysotile on the cement-sand composite properties.
Influence of clinoptilolite on the cement-sand composite properties.
Matvievskiy, Physical and mechanical properties of the cement stone based on biocidal Portland cement with active mineral additive, Solid State Phenomena. (2016) 28-32. doi: 10.4028/www.scientific.net/MSF.871.28
Showing 13341 to 13350 of 26166 items