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Online since: March 2013
Authors: Yang Ju, Atsushi Hosoi, Lan Zhang
On the other hand, however, on the nanometer scale, the electrical properties of materials are affected not only by the structure and composition of these materials, but also by the mechanical factors of stress and strain due to lattice vibrations.
Thus, it is a great needing to research the electrical properties of materials on nanometer scale.
As the result, the M-AFM can be used to measure the electrical properties of materials with a high operating speed.
Such difference can be corrected by the calibration process with a zero setting, therefore it will not affect the evaluation of electrical properties of materials.
The M-AFM can be used to measure the electrical properties of materials with a high operating speed.
Online since: March 2017
Authors: Qing Jun Ding, Yue Li, Wang Peng, Zhong Zheng Guan
Ulm et al. [7-11], obtained key mechanical properties of C–S–H that should be helpful to identify the link between morphology and mechanical properties of C–S–H by novel grid-indentation technique.
It is seen that the mechanical properties of all samples are obviously decreased.
This indicates the mechanical properties decrease with the increase of the dry-wet cycle times.
This indicates that the water-cement ratio has little influence on mechanical properties of each phase, which approves the theory reported by literature [11] that the mechanical properties measured by nanoindentation are indeed intrinsic material properties.
(3) Water-cement ratio has little influence on mechanical properties of each phase.
Online since: October 2015
Authors: Muhammad Sarwar, Mohd Amin Abd Majid
PWHT at temperature of 760°C for 2 hours has good influence on mechanical properties as the hardness decreases and turns out to be uniformly distributed.
Introduction In any welding process, the input parameters have an influence on mechanical properties of the joints.
To determine these welding combinations that would lead to excellent mechanical properties, different methods and approaches have been used.
All the other factors and parameters were controlled and maintained as per Table 3.
The method also influence the mechanical properties of the welded pipes because the hardness decreases and is uniformly distributed.
Online since: August 2016
Authors: Tarinee Nampitch, Chanon Wiphanurat, Pran Hanthanon, Thiti Kaisone
Hydrogen bonding between the carboxylic group of PLA and the silica bonded group affected the increment in mechanical properties of composites.
PLA is a biodegradable polyester material with good mechanical and thermal properties.
However, both silica nanoparticles and coconut fibers could be affected in order to increase the mechanical properties of composites [9, 10] by hydrogen bonding between the carboxylic group of PLA and the silica bonded group [11].
Another factor that helped to increase the compressive properties was the ability of attachment with the PLA matrix of silica nanoparticles and coconut fibers.
Noori, Effect of nano SiO2 on some mechanical properties of biodegradable polylactic acid, Int.
Online since: May 2011
Authors: Hsi Hsin Chien, Kung Jeng Ma, Yun Peng Yeh, Choung Lii Chao
The measurement of mechanical properties was performed by universal testing machine.
The studies regarding their mechanical properties of polymer based PCF are still lacking.
The optical and mechanical properties of the air core PCFs are also investigated.
The measurement of mechanical properties was performed by universal testing machine.
Ashby: Cellular Solids: Structure and Properties, Cambridge University Press, 1999.
Online since: January 2015
Authors: Xue Feng Yu, Guo Rong Zhang, Chao Jia, Jun Chen, Shang Kun Zhang, Sheng Xian Du, Xiang Yu Luo, Zeng Qi Zhang
The main factors affecting the weathering divided into internal and external factors.
Internal factors refer to dinosaur fossils own composition, properties, structure, pore size and type of cement, etc.
According triaxial test results, dinosaur fossils have similar physical and mechanical properties with rocks.
Freeze-thaw cycle test Mechanical properties of dinosaur fossils and rock have close related with the protection of dinosaur fossils.
The effect of wet and dry cycles on the mechanical properties of dinosaur fossils is obvious.
Online since: November 2012
Authors: Konrad J. Waluś, Zbigniew Olszewski
Effects of Atmospheric Conditions on The Mechanical Properties of Tires Zbigniew Olszewski1, Konrad J.
External factors affect the area of wheel contact with the ground in two ways - by changing the surface properties and acting on the mechanical properties of the tire itself.
Rubber from which tires are produced is a material with viscoelastic properties so that they have the capacity to absorb vibration and strain, converting mechanical energy to heat in the processes related to internal friction.
The change in temperature of the material leads to changes in its mechanical properties such as hardness.
Its value depends on many factors associated with both the material properties of the friction pair components, as well as external factors such as temperature or presence of impurities on the surface.
Online since: December 2011
Authors: D.A. Chinakhov, D.P. Ilyaschenko
The given work considers the influence of the power supply type (diode rectifier DR-306 and upon new generation inverter Nebula-315) upon the chemical composition, microstructure, mechanical properties of the weld joints and health characteristics of the manual arc welding process.
We have carried out a number of experiments to estimate the influence of the power supply type upon the chemical composition, microstructure, mechanical properties of the weld joints and health characteristics of manual arc welding.
The weld joints completed with the use of different power supplies are also supposed to possess different properties.
The mechanical properties are given in table 3.
The mechanical properties of arc weld joints completed on Ø159×6 tube (09Mn2Si steel) with LB 52U electrodes Power supply Rupture strength time limit σB, MPа Outside, inside and edgewise bend angle, ° Impact resistance KCU, J/sm2 (cut along the weld joint centre) +20 °C 0 °C -20 °C -40 °C DR-306 541-543 542 120-120 120 201-220 210 212-223 216 200-233 219 143-230 182 Nebula-315 550-560 556 120-120 120 208-226 217 215-254 235 224-250 237 150-258 193 Work [5] states that the intensity of current is one of the factors determining the weld fumes chemical composition, so the power supply type influences the air health characteristics of the work area.
Online since: July 2015
Authors: Nurul Shuhada Mohd Makhtar, Nur Shahidah Ab Aziz, Miradatul Najwa Mohd Rodhi, Nur Farzana Abdul Ghafar
These polymers have great ability in terms of mechanical properties.
By utilizing Tacca leontopetaloides starch, the properties improvement of TPS with the addition of natural rubber and glycerol plasticizer are studied in terms of their mechanical properties.
Mechanical properties.
It proves the possibility to produce biopolymer with good mechanical properties.
This shows the in-situ compatibilization that makes the mechanical properties of GM samples was improved.
Online since: September 2014
Authors: Ming Zhang, Yang Wang, Wei Qiang Chen, Chao Jian Hou, Li Jun Yang
The results show that owing to CFRP has the characteristic of anisotropy, laser cutting direction is the most significant factor that affects the quality of kerf cut by UV laser.
For instance, CFRP can be applied in the satellite ontology structure like satellite shell and center bearing cylinder by fully utilized its characteristics of small density and good fatigue, also by means of using high temperature resistance and excellent mechanical properties can be devoted to the key components of carrier rocket like engine combustion chamber and the exhaust[2,3].
Conclusions 1) The notable factor that affects width of kerf and size of HAZ is laser cutting direction.
Study on microwave absorbing ability and mechanical properties of carbonous composiyes[D].Dong hua university,2008:27-28
Mechanical Design and Theory in Hebei University of Science and Technology,2012:1-5
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