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Online since: September 2011
Authors: Hong Lin, Yu Yue Chen, Ting Ting Zhou
The FT-IR spectra, physical mechanical properties and antibacterial activities of nano silver antibacterial polyester fabrics had been tested and compared with common polyester fabrics.
Introduction Polyester, one of the most important raw materials in textile production, is widely used in clothing fields for its excellent properties such as high mechanical strength, good wearing resistance, easy to wash and fast drying [1].
It is discovered that the modification process had not weaken the mechanical properties of the polyester fabrics.
As one of the most important factors to consider for the antibacterial finish of modified fabrics is its durability against repeated washing cycles, the samples of nano silver antibacterial polyester fabrics after 0, 10, 20, and 50 washing cycles were subjected to antibacterial tests.
The antibacterial finish had little effect on the macromolecular structure and physical mechanical properties of the polyester fabrics.
Online since: November 2014
Authors: Mohd Zulkefli Selamat, X.H. Loh, M. Ahadlin M. Daud
Properties of composite were measured using hardness and density test.
Kord B. had mentioned increase amount of maleic anhydride will increase the mechanical properties of composite from his experiment involving tensile, flexural and impact test[8].
Coverage of polypropylene is affecting the result of density test where if polypropylene can cover fibre in larger area then water will less contact with fibre.
Hardness of composite is affected by two main factors, namely: adding of maleic anhydride and compact level inside composite due to fibre composition.
Combining both factors, author will select sample with lower density and higher hardness value.
Online since: October 2010
Authors: Bin Xia, Wei Qiang Wang, Ming Ming You, Ai Ju Li
Since the MCFs have excellent mechanical and electrical conductivity properties, they are suitable for filling resin/graphite matrix well.
As we can see from Fig.5, there is also a dividing point of the MCF content affecting the composite electrical conductivity.
The liquid-phase treatment effect of the MCFs was affected by a number of factors.
Based on the requirements of the tests, we determine the following three factors: the mole ratio of H2O2 to FeSO4·7H2O, pH values and UV irradiation time as the main experimental factors.
Study on the electrical and mechanical properties of phenol formaldehyde resin/graphite composite for bipolar plate.
Online since: March 2011
Authors: Cheng Hui Gao, Ning Li, Guang Ming Cheng
The eletrodeposition parameters and its effects have been investigated in forming Ni-Mo alloys in the present study by measuring the structure and properties of deposits.
Electrodeposition which is easy operated offers an opportunity to prepare alloys of various structural and chemical factors that are important for the deposits final catalytic properties.
In order to understand the effect of Mo content on the microstructure and mechanical properties of Ni-base alloys, it is important for its effect on phase equilibrium to be studied the Ni-Mo binary system.
The influences of various factors of the current efficiency, temperature, molybdenum content and the structure of the alloys have been investigated.
The molybdenum content is the main factors on the formation of Ni-Mo alloys.
Online since: February 2013
Authors: Zhao Yong Mao, Chao Wei, Yu Fan, Wei Chao Huang
Taking into account that there are much factors affect the performance of pressure hull, and these factors exists some coupling relationship between each other for pressure hull performance, so the orthogonal design method has been used in this paper, which can establish the representative test program.
Therefore, in addition to thickness of the shell, the rib size and distance between the ribs are the factors affecting the structure and properties of the pressure hull.
Analysis of the influence of the pressure hull structural performance Thickness of the shell and the ribs size also has an important influence on the structural performance because they decide the shape of the pressure shell in a great extent,in consideration of the many factors that affect the structural performance of the pressure hull and there is a certain degree of mutual coupling relations between the parameters.
We arrange the test by orthogonal table L9(34) in the analysis process, the factors and levels in the design of the experiments are shown in Table 1, the results and the design of the experiments are shown in Table 2.
The research in this paper can make the designers clearly understand the influence of the various factors on the performance of the pressure hull structure and provides some academic bases and references for the structural designers.
Online since: March 2023
Authors: Maciej Sulowski, Piotr Matusiewicz, Piotr Kij
The aim of the optimization was to determine the setting of the sintering process parameter levels that would allow to obtain the maximum values of the analyzed mechanical properties.
Description of the analyzed factors levels is presented in Table 2.
Rashed, ANOVA Modeling on Sintering Parameters and Frequencies, Affecting Microstructure and Dielectric Constant of Nb Doped BaTiO3, Procedia Engineering 90 (2014) 72-77
Khanduja, Analysis of powder metallurgy process parameters for mechanical properties of sintered Fe–Cr–Mo alloy steel, Materials and Manufacturing Processes, 32 (5) (2017) 537-541
Matusiewicz, Comparison of mechanical properties of Mn-Cr-Mo steels sintered in different conditions, Solid State Phenomena, 197 (2013) 33-40
Online since: July 2008
Authors: Annalisa Pola, Roberto Roberti, Lars Pape, Michael Modigell
The predicted thixotropic properties were verified by measuring the microstructural conventional parameters, such as globule size and shape factor, and the solidification range, by means of differential scanning calorimetry.
Furthermore, they need T4, T5, or T6 heat treatments to improve their mechanical properties, whose level remains nevertheless fairly modest compared with wrought alloys.
Two different amounts of Ag were considered to find out the best compromise between costs and mechanical properties.
It can be seen that an artificial ageing at 180°C offers, always, the highest properties.
The expected shear-thinning and thixotropic flow properties are clearly visible.
Online since: September 2014
Authors: Feng Xu
Study on the structure and properties of RCA concrete and its application properties.
Microstructure analysis of RCA Cement concrete is a multiphase heterogeneous materials composed of cement paste and aggregate, the interface between the different phase composition and nature has the important influence on the physical, mechanical properties[2].
At the same time, water and other scholars research results show that, significant effects of the surface state of the recycled aggregate on Microstructure and mechanical properties of RCA concrete.
properties and control of RCA aggregate RCA aggregates is an important part of RCA concrete, its nature has great influence on the properties of RCA concrete, so it is necessary to explore the related physical, mechanical properties.
Losangeles abrasion test and aggregate crushing test showed that the wear rate of RCA is higher than that of NA[10], this is due to the decrease of mechanical properties of all kinds of factors which influence the RCA coated RCA cement mortar and its use in the process.
Online since: January 2020
Authors: Ahmed A. Ayash, Raouf Mahmood Raouf, Khalid Mershed Eweed
These two factors have led to increasing the plastic waste, affecting, adversely, inhabitants and environment.
Recently, the authors explored the effect of PP on the asphalt physical properties.
Here, the current work builds on this study by exploring the mechanical properties of asphalt modified by the same PP grade.
The work is divided into two stages: (1) exploring the asphalt content that gives the best mix design in terms of the properties, and then (2) studying the effect of adding polypropylene waste on the mechanical properties of this optimum mix.
Sieve analysis was performed using mechanical shaker.
Online since: October 2024
Authors: Ákos Meilinger, Marcell Gáspár, Sahm Alden Abd Al Al
The cooling rate in RSW can vary widely depending on several factors, including material properties, thickness, welding parameters, and environmental conditions.
The temperature profile, and especially the cooling rate, will influence the microstructure evolution in the WN and the HAZ, ultimately affecting the weld's mechanical properties [14].
This period is vital because it significantly affects the microstructure and, therefore, the mechanical properties of the welded joint [13].
The mechanical properties of the Docol MS1400 steel [21].
Smaller and more refined grains generally yield better mechanical properties in steel.
Showing 3881 to 3890 of 25877 items