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Online since: October 2020
Authors: Nina V. Smirnova, Denis Tokarev, Nikita Faddeev, Victor Klushin
The conductivity of the composite are decreased with increasing resin content, but its mechanical properties are improve.
However, due to its molecular structure, it exhibits poor mechanical properties.
However, the higher filler loading in composites often results in weak mechanical properties and increase in porosity [19].
The composite exhibits good performance on mechanical properties and conductivity.
Conductivity of the composite decreases with increasing of resin content, but its mechanical properties changes inversely.
Online since: July 2020
Authors: Mirosław Bonek, Eva Tillová
Introduction The surface layer determines the functional properties of many machine parts and device elements.
A few percents of the volume of the material significantly affects the functional properties, such as abrasion, corrosion and fatigue resistance.
The technology of laser processing of materials (remelting, alloying) significantly affects the structure and properties of processed materials.
Therefore one can observe an ultra-fast phase changes/transformations affecting the structural mechanism (Fig. 6,7).
Labisz, The influence of laser alloying on the structure and mechanical properties of AlMg5Si2Mn surface layers.
Online since: December 2011
Authors: Gui Fu Ding, Hong Wang, Zhuo Qing Yang, Xiao Lin Zhao, Zheng Jie Zhang, Chun Yan Jiang
In addition, its basic mechanical properties will also be characterized by dynamic mechanical analysis (DMA).
Ltd.) was used as the electrophoretic polymer considering its chemical and physical stability, good corrosion resistance and dielectric properties.
When the properties of the electrophoretic polymer film are stable, how to precisely control its thickness is a key factor whether it could be widely used in MEMS or not.
Some basic mechanical properties of the polymer can be obtained, such as tensile strength (σb), strain (ε) and Young’s modulus (E).
Some of fabricated samples were respectively tested on several points to obtain an average value of each mechanical property.
Online since: October 2011
Authors: Saad A. Abo-Qudais, A. F. Khadrawi, Ahmad Al-Shyyab
The mechanical properties of asphalt mixtures used in highways construction depend to large extent on the type and quantity of the used asphalt [3].
Given the scarcity of experimental data on hot-mix asphalt thermal properties, constant pavement density and thermal properties are typically assumed.
Determining of these temperatures is not an easy process, since it is not only depending on the ambient air temperature, but it also affected by hot-mix asphalt properties and surrounding environmental conditions.
In reality, no object absorbs or emits radiation perfectly, so factors representing a materials absorptance () and emittance () must be included in radiation models.
These factors have values between 0 and unity, and represent the fraction of total radiative energy absorbed and emitted, respectively, by a surface.
Online since: August 2013
Authors: Ming Jie Guan, Dan Zeng, Xin Man Chang
Especially when restructured bamboo lumber is used outdoors, its properties are affected by humidity and temperature and other climate factors.
Bending properties were tested on universal mechanical machine, span 280mm, block diameter 30mm, and load speed 12mm/s.
Table2 showed that flexural properties decreased after aging in different degrees.
The retention rates of flexural properties were shown in Fig.1.
It illustrated that the flexural properties of control specimens were very well.
Online since: October 2008
Authors: Marcello Cabibbo, Stefano Spigarelli, A. Fabrizi, C. Paternoster, R. Cecchini, P.V. Kiryukhantsev-Korneev, A. Sheveyko, Marie Haidopoulo
Thin nanostructured Ti-B-N-based films are known for their excellent mechanical properties and their stability at high temperature in oxidizing atmosphere.
The mechanical properties, phase composition and micro-structure of as-deposited and annealed coatings were addressed.
The mechanical properties of the layers in the air annealed samples could not be measured.
One of the main factors that affects the Young's modulus is the nature of the atomic bonding, which is related to the atomic configuration of each component of the material.
The mechanical properties of the formed layers are different, and as a consequence, buckling of the coating in the cooling phase is reported.
Online since: November 2012
Authors: J. Grabis, Ints Šteins, Dz. Rašmane
Both factors determined difference of the crystallite size of the components.
Kang, Densification and mechanical properties of titanium diboride with silicon nitride as a sintering aid, J.
Kang, Sintering and mechanical properties of titanium diboride with aluminum nitride as a sintering aid, J.
Liu, Effect of (Ni, Mo) and TiN on the microstructure and mechanical properties of TiB2 ceramic tool materials, Mater.
Huang, Influence of titanium diboride on the microstructure and mechanical properties of silicon nitride ceramic, Mater.
Online since: January 2013
Authors: Min Yuan Huang, Zong Ren Zou
The in-depth study of external prestressing curved beam’s mechanical properties and construction techniques will effectively grip external prestressing curved beam’s mechanical properties and deformation laws.
In external prestressing curved beam’s corresponding mechanical properties analysis, the corresponding reasonable value of the structure key parameters is the realization of external prestressing curved beam optimization design of key factors, which is mainly concentrated in the following areas.
And the axial force data is also the monitoring factors of the strengthening construction.
Therefore, the mechanical properties of external prestressing curved beam and reasonable adjustments will be the effective means of structure stress and have significant economic benefit.
Too large or too small diameter will affect the mechanical performance of external prestressing curved beam.
Online since: October 2015
Authors: Wanlop Harnnarongchai, Kantima Chaochanchaikul
The sound absorbing efficiency of natural rubber (NR) foam is affected by the cell morphology of foam.
The cell characteristics in rubber foam depended on the various factors such as the type and content of blowing agents, the foaming temperature and formulation of rubber compound [3].
Labrincha, Mechanical and acoustical characteristics of bound rubber granulate, J.
Sipaut, Correlation between the acoustic and dynamic mechanical properties of natural rubber foam: Effect of foaming temperature, Mater.
Okieimen, Rheological mechanical properties of natural rubber reinforced with agricultural by product, J.
Online since: June 2019
Authors: Yuriy Vovk, Maria Sokil, Mykhaylo Levkovych, Oleg Tson, Dmytro Kondratyuk, Viktor Dmytrenko, Oleg Lyashuk
Thus, main characteristics of the mechanical system under investigation and the whole range of forces estimation, system parameters and boundary conditions affecting the dynamic process are shown on Fig. 1.
Elastic properties of an auger screw model under study are depicted by applying the quasi-linear law of elasticity , where - the normal tension in a cross-section of the system model, and - the relative strain and its rate; - a feature that indicates the deviation of elastic model material properties from the linear law; - a small parameter, which indicates a small deviation from the specified properties of the linear law.
Fig. 4 shows the response surfaces of value Q change caused by simultaneous change of two factors for the feed mix: (а) - ; (b) - ; (c) - ; (d) - ; (e) -; (f) - of geometrical and structural parameters whilst feed mix making by spring-actuated tool at the tool rotation frequency (10, 12, 15, 20 rev/с), depth of the tool screw hole within the limits m and with different steps of the tool m and crest width of elastic element m.
Response surfaces of dependencies: (а) - ; (b) - ; (c) - ; (d) - ; (e) -; (f) - We found out that the most important factors affecting the output are the tool rotation frequency, its step and width of the elastic element crest and less important is the depth of the tool screw hole .
New trends in mechanical engineering and materials, Book Series: Applied Mechanics and Materials. 251 (2013) 101-103
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