Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: January 2011
Authors: Ying Wu, Zhao Ying Zhou, Li Jun Sun, Jin Zhang, Xiao Yun Zhang
Introduction
Synthetic nanotubes are attracting much interest because of their interesting properties and possible applications [1-3].
The quality of CNTs was affected by many factors, including the carbon source for the synthesis of CNT, the preparation of catalyst, the grown atmosphere in the reaction chamber, the flow rate of air, and the applied electrical field etc [8].
Further study will focus on the synthesis of CNT on the desired area of microstructure to form the practical electrical and nano-electro-mechanical systems based on nanotubes.
Popov, Carbon nanotubes: properties and application, Materials Science and Engineering, R(43), 2004, p61-102 [2] CAO Z.
The quality of CNTs was affected by many factors, including the carbon source for the synthesis of CNT, the preparation of catalyst, the grown atmosphere in the reaction chamber, the flow rate of air, and the applied electrical field etc [8].
Further study will focus on the synthesis of CNT on the desired area of microstructure to form the practical electrical and nano-electro-mechanical systems based on nanotubes.
Popov, Carbon nanotubes: properties and application, Materials Science and Engineering, R(43), 2004, p61-102 [2] CAO Z.
Online since: May 2015
Authors: Devapriya Chitral Wijeyesekera, Mohd Amran, W. Azahar, W. Farhan, M. Azran, R. Izamshah, Abu Bakar Mohd Hadzley
Historically, large factors of safety and indiscriminate use of natural resources were adopted to ensure a design and build for life precept.
During the sintering of the product, an uneven heat transfer, shrinkage and excessive burn may affect the side surface of the product.
The predominance of these processes depends on the rotational blade speed, feed rate, friction mechanism between the blade and the product and the mechanical properties of the hollow structure mat.
Koshirai, Rheological properties for polypropylene modified by polytetrafluoroethylene, J.
During the sintering of the product, an uneven heat transfer, shrinkage and excessive burn may affect the side surface of the product.
The predominance of these processes depends on the rotational blade speed, feed rate, friction mechanism between the blade and the product and the mechanical properties of the hollow structure mat.
Koshirai, Rheological properties for polypropylene modified by polytetrafluoroethylene, J.
Online since: September 2007
Authors: Jaroslav Polák, Suzanne Degallaix, Ondřej Kotecký
Microstructure of the duplex steels combines the mechanical properties of both phases - high
strength, high ductility, and high work-hardening rate - with a very good corrosion resistance.
The small grain size contributes to the good mechanical properties.
Cyclic mechanical properties depend strongly on the plastic strain amplitude and on the nitrogen content [5].
The chemical composition is shown in Table 1; the main mechanical properties are shown in Table 2.
The growth of a crack is only slightly affected by the crack coalescence.
The small grain size contributes to the good mechanical properties.
Cyclic mechanical properties depend strongly on the plastic strain amplitude and on the nitrogen content [5].
The chemical composition is shown in Table 1; the main mechanical properties are shown in Table 2.
The growth of a crack is only slightly affected by the crack coalescence.
Online since: July 2013
Authors: Bo Gao, Gan Feng Tu, Shi Wei Li, Liang Hu, Shao Hua Yin, Shu Chen Sun
. % Si to the Zn-6Al-3Mg bath, and the addition of RE effectively decreased the thickness of coating by means of improving the flowing property of the zinc alloy bath.
Zinc bath composition/temperature, immersion velocity/time, substrate composition, air pressure from air knives and running speed of steel-belt are factors that can influence the thickness and corrosion resistance of the hot-dip coating [5-7].
Many researchers have concentrated on studying the corrosion resistance and mechanisms of corrosion resistance of it, but almost all of them did not study the affecting factors that on its thickness.
The decrease of the thickness of the ZAM-S5-R2 and ZAM-S5-R5 coatings could be attributed to the improvement of the flowing property of the zinc alloy bath caused by the addition of RE [14].
The thickness of ZAM-S5 coating could be further decreased by the addition of RE, and which could be attributed to the improvement of the flowing property of the Zn-6Al-3Mg-0.1Si alloy bath after RE was added.
Zinc bath composition/temperature, immersion velocity/time, substrate composition, air pressure from air knives and running speed of steel-belt are factors that can influence the thickness and corrosion resistance of the hot-dip coating [5-7].
Many researchers have concentrated on studying the corrosion resistance and mechanisms of corrosion resistance of it, but almost all of them did not study the affecting factors that on its thickness.
The decrease of the thickness of the ZAM-S5-R2 and ZAM-S5-R5 coatings could be attributed to the improvement of the flowing property of the zinc alloy bath caused by the addition of RE [14].
The thickness of ZAM-S5 coating could be further decreased by the addition of RE, and which could be attributed to the improvement of the flowing property of the Zn-6Al-3Mg-0.1Si alloy bath after RE was added.
Online since: December 2024
Authors: Insan Putri Rahmatin, Ida Ayu Oka Suwati Sideman, Made Mahendra, Buan Anshari, I. Dewa Made Alit Karyawan
This can be caused by several factors.
AMO has hard bitumen physical properties and less maltene content than AMI.
This can be caused by various factors such as aggregate gradation, the quality of the asphalt used, and the compaction process [15] Flow values increase at 25% AMI and 75% AMO variations.
The high MQ value can affect the workability of the mixture and the flexibility of the asphalt mixture.
Nesselhauf, “Sensitivity of the Flow Number to Mix Factors of Hot-Mix Asphalt,” no.
AMO has hard bitumen physical properties and less maltene content than AMI.
This can be caused by various factors such as aggregate gradation, the quality of the asphalt used, and the compaction process [15] Flow values increase at 25% AMI and 75% AMO variations.
The high MQ value can affect the workability of the mixture and the flexibility of the asphalt mixture.
Nesselhauf, “Sensitivity of the Flow Number to Mix Factors of Hot-Mix Asphalt,” no.
Online since: July 2014
Authors: Xue Feng Wu, Teng Fei Gao, Bo Wen Zhao, He Rong Cao
During the process, the temperature is a key factor.
However, the workpiece will be ablation due to excessive cutting area temperature, affecting surface quality of the workpiece.
The initial condition at time t = 0 is given by (2) GH4169 is used to carry out the experiment and simulation with size 50×5×30mm,which has stable structure property and excellent mechanical properties.
However, the workpiece will be ablation due to excessive cutting area temperature, affecting surface quality of the workpiece.
The initial condition at time t = 0 is given by (2) GH4169 is used to carry out the experiment and simulation with size 50×5×30mm,which has stable structure property and excellent mechanical properties.
Online since: August 2011
Authors: M.R.M. Aliha, Mahdi Rezaei
At each increment, the direction of fracture initiation for the tip of growing crack was determined using the fracture parameters (i.e. stress intensity factors and T-stress) based on the modified maximum tangential stress (MMTS) criterion.
KI, KIl, T) and rc are known. rc is assumed constant material property representing the size of damage zone ahead of the crack tip.
(4) where YI ,YII and T* are the geometry factors that are functions of specimen geometry and loading condition.
Table 1 presents the numerical values of geometry factors for pure mode II condition of the tested CCCD and DLSP specimens (extracted from [6,7] for a/R = 0.3 and a/w = 0.3).
Geometry factors and the fracture initiation angles of the tested CCCD and DLSP specimens subjected to pure mode II loading.
KI, KIl, T) and rc are known. rc is assumed constant material property representing the size of damage zone ahead of the crack tip.
(4) where YI ,YII and T* are the geometry factors that are functions of specimen geometry and loading condition.
Table 1 presents the numerical values of geometry factors for pure mode II condition of the tested CCCD and DLSP specimens (extracted from [6,7] for a/R = 0.3 and a/w = 0.3).
Geometry factors and the fracture initiation angles of the tested CCCD and DLSP specimens subjected to pure mode II loading.
Online since: February 2020
Authors: Xiau Yeen Lee, Hwee Wen Fan, Hui Jing Koh
While electrical conductivity is being introduced, the impact of these conducting polymer and filler on hydrogels’ properties can be very different.
The results indicating the mechanical properties of conducting hydrogels were enhanced by the incorporation of PANI into PAA hydrogel matrix.
However, graphene was shown to be able to improve the biocompatibility of PAA hydrogel[16], hence adding of graphene filler with proper dispersion and amount is crucial to obtain hydrogels with good conductivity and mechanical properties.
Kumar, “Influence of Dopant Ions on the Properties of Conducting Polyacrylamide/Polyaniline Hydrogels AU - Prabhakar, Reetu,” Polym.
Ko, “Structures and properties of chemically reduced polyanilines,” Polymer (Guildf)., vol. 39, no. 5, pp. 1187–1195, 1998
The results indicating the mechanical properties of conducting hydrogels were enhanced by the incorporation of PANI into PAA hydrogel matrix.
However, graphene was shown to be able to improve the biocompatibility of PAA hydrogel[16], hence adding of graphene filler with proper dispersion and amount is crucial to obtain hydrogels with good conductivity and mechanical properties.
Kumar, “Influence of Dopant Ions on the Properties of Conducting Polyacrylamide/Polyaniline Hydrogels AU - Prabhakar, Reetu,” Polym.
Ko, “Structures and properties of chemically reduced polyanilines,” Polymer (Guildf)., vol. 39, no. 5, pp. 1187–1195, 1998
Online since: July 2011
Authors: Qiu Xiang Liu, Tie Dong Cheng, Shu Juan Kuang, Nan Ding, Yan Ping Jiang, Xin Gui Tang
Ferroelectric, dielectric and pyroelectric properties of highly c-axis -oriented nanostructured (Pb,Sr)(Zr,Ti)O3 thin films
T.D.
Furthermore, an isovalent A-site doping can also affect those properties.
However, a few papers focused on their structure, ferroelectric, dielectric and pyroelectric properties.
The (001)-orientation characteristics of grains, dielectric properties, ferroelectric and pyroelectric properties of the (Pb0.92Sr0.08)(Zr0.65Ti0.35)O3 thin films on Pt/Ti/SiO2/Si substrates are also reported.
As we know, ferroelectric thin films with orientation always exhibit excellent properties because it could be polarized in one direction. e.g., PZT, higher values of remanent polarization and piezoelectric properties were found than those of polycrystalline one [13,14].
Furthermore, an isovalent A-site doping can also affect those properties.
However, a few papers focused on their structure, ferroelectric, dielectric and pyroelectric properties.
The (001)-orientation characteristics of grains, dielectric properties, ferroelectric and pyroelectric properties of the (Pb0.92Sr0.08)(Zr0.65Ti0.35)O3 thin films on Pt/Ti/SiO2/Si substrates are also reported.
As we know, ferroelectric thin films with orientation always exhibit excellent properties because it could be polarized in one direction. e.g., PZT, higher values of remanent polarization and piezoelectric properties were found than those of polycrystalline one [13,14].
Online since: April 2019
Authors: Vidhura Mahendra
Properties of Rosin
Methods for improving rosin production and its properties.
The morphology, structure, thermal, and mechanical properties of the RWPU/CNs nano-composites are investigated.
Flexural and dynamic mechanical properties of the cured resins are determined using three-point bending test and dynamic mechanical analysis (DMA).
Thermal stability, tensile and dynamic mechanical properties of the cured epoxies is investigated.
Some physical and mechanical properties of rosin–copper treated wood is examined.
The morphology, structure, thermal, and mechanical properties of the RWPU/CNs nano-composites are investigated.
Flexural and dynamic mechanical properties of the cured resins are determined using three-point bending test and dynamic mechanical analysis (DMA).
Thermal stability, tensile and dynamic mechanical properties of the cured epoxies is investigated.
Some physical and mechanical properties of rosin–copper treated wood is examined.