Search Options

Sort by:

Sort search results by

Publication Type:

Publication Type filter

Open access:

Publication Date:

Periodicals:

Periodicals filter

Search results

Online since: October 2007
Authors: Jin Cheng, Mao Fa Wang, Guang Zhu, Fei Li, Hong Dan Zhang, Peng Fei Ren, Xiao Ping Zou
However, morphology and microstructure of carbon nanofibers are affected by synthesis conditions, such as stability of flames and sampling time, sampling temperature etc.
Different Influence factors were depicted in detail.
Introduction Carbon nanofibers have been extensively studied recently because of their unique mechanical and physical properties, such as high mechanical strength, remarkable electronic structure [1, 2] and capillary properties [3].
The morphology and microstructure of carbon nanofibers are affected by synthesis conditions, such as stability of flames and sampling time, sampling temperature etc.
The morphology and microstructure of carbon nanofibers are affected by synthesis conditions, such as stability of flames and sampling time, sampling temperature etc.
Online since: July 2012
Authors: Meysam Rahmat, Pascal Hubert
Mechanical performance of nanocomposites is strongly dependent on the interaction properties between the matrix and the reinforcement.
For discontinuous reinforcement polymer composites, the superior mechanical properties of the reinforcement need to be efficiently transferred to the matrix.
Therefore, the mechanical performance of nanocomposites is significantly influenced by the interaction properties of the reinforcement and the matrix [2-4].
Velasco-Santos, et al., Improvement of Thermal and Mechanical Properties of Carbon Nanotube Composites through Chemical Functionalization, Chemistry of Materials, 15 (23) (2003) 4470
Coleman, et al., Improving the mechanical properties of single-walled carbon nanotube sheets by intercalation of polymeric adhesives, Applied Physics Letters, 82 (11) (2003) 1682
Online since: June 2012
Authors: Xiao Yan Lin, Xue Gang Luo, Jia Cheng Wei, Hong Ping Zhang
The impact of preparation parameters and the dosage of anti-fogging and anti-dropping masterbatch on the mechanical properties and non-dropping properties of the film has been investigated by versatile mechanical testing machine, atomic force microscope(AFM), contact angle tester, water bath acceleration method.
Results and Discussion The mechanical properties of greenhouse film is shown in table 1.
Mechanical properties of greenhouse film Group A B C D Tensile strength[Mpa] 23.346 22.011 21.600 24.501 Elongation at break[%] 901.58 901.01 882.41 1009.94 The results of mechanical properties testing shows that with the addition of anti-fogging and anti-dropping masterbatch, the mechanical properties of the film decreased, but the degree of the decrease is not big.
In consideration of the two factors, to add 10% of this masterbatch is the most appropriate.
In some occasions which demand less on the mechanical properties of the greenhouse film, the addition of anti-fogging and anti-dropping masterbatch can be increased properly.
Online since: December 2013
Authors: Andanastuti Muchtar, C.Y. Tan, Masfueh Razali, Chee Huan Leong
This phenomenon has become a major concern, because this process modifies the physical and chemical properties of HA in biomedical applications, thereby affecting the performance of HA as an implant material [11, 12].
This reaction is important in the resulting mechanical properties, chemical activity, and stability of HA within living organisms [12].
Hampshire, Mechanical properties of hydroxyapatite–zirconia compacts sintered by two different sintering methods, J.
Gibson, The effect of low levels of zirconia addition on the mechanical properties of hydroxyapatite, J. of Mater.
Sadrnezhaad, Effect of a novel sintering process on mechanical properties of hydroxyapatite ceramics, J. of Alloys and Compounds. 471(1–2) (2009) 180-184
Online since: May 2012
Authors: Li Zhen Yi, Liang Yi
Heat loss through solid boundaries is a key factor which determines the temperature of smoke layer at quasi-steady state and will be discussed in this paper.
Status of smoke layer might be affected by some points such as heat release rate of fire, exhaust rate, geometric and thermal conditions of the fire room and so on.
Heat loss of smoke layer through solid boundaries is a key factor which affects temperature of smoke layer at quasi-steady state of mechanical exhaust.
Model 2: Considering convective and radiative heat loss integratively A 2-layer zone model was proposed by YI[7] to calculate smoke layer properties with mechanical exhaust in an atrium.
In a fire room, The ratio of heat loss through solid boundaries to the convective part of fire power, χ, depends on the geometrical constraints, ventilation conditions, thermal properties of solid boundaries and others.
Online since: August 2016
Authors: Tan Cher Siang, Mohd Syahrul Hisyam Mohd Sani, Fadhluhartini Muftah
Reference [6] has reported the column end support condition, column geometry specifically cross-sectional dimensions and also the length, post-buckling behaviour and ultimate strength could be affected the instability phenomena.
A CFS section in compression action is classified a complex of failure mechanics and influenced by a many factors to achieve the ultimate load condition [7].
The section properties and dimensional ratio of the cold-formed steel channel Section Properties Symbols Value Symbols Value Web, D 75.00 mm Flange, B 34.00 mm Lipped, L 8.00 mm Thickness, t 1.00 mm Area, A 148.00 mm2 Direct Strength, γs 550.00 MPa Dimensional ratio B/t 34.00 D/t 75.00 D/B 2.21 D/L 9.38 B/L 4.25 L/t 8.00 Table 2.
The double intermediate stiffeners and lipped of the CFS channel was not affected the global buckling of the column, but they can cater the local buckling circumstances in the early stage of applied load.
The comparison is to determine the relationship with another factor such as yield strength, support condition and another dimension of CFS.
Online since: July 2015
Authors: Didik Aryanto, Nanang Sudrajat, Toto Sudiro, Nenen Rusnaeni Djauhari, Citra Wara Br Sinuraya, Syahrul Humaidi
Sintering temperature is the most important factor, which affects on the microstructure evolvement [8].
However, in this study, the phase composition predominantly affects the magnetic properties of NdFeB magnet.
The SPS fabrication temperature significantly affects the structure and magnetic properties of NdFeB magnets as the decomposition of the NdFeB phase was likely to occur at elevated temperature of 950oC and 1030oC.
Sha, Microstructure and mechanical properties of Nb–Si alloys fabricated by spark plasma sintering, Progress in Natural Science: Materials International. 23(1) (2013) 55–63
Zhong, Effects of sintering temperature on the mechanical properties of sintered NdFeB permanent magnets prepared by spark plasma sintering.
Online since: April 2012
Authors: Beatriz López, J.M. Rodriguez-Ibabe
The singularity of the coarse as cast initial austenite grain size, combined with the limited total applied strain during hot working, requires a tailored design of the composition and deformation schedules in order to achieve the required mechanical properties.
These two aspects bring more and more difficulties as higher mechanical properties (significant additions of microalloying elements) and thicker final gauges (less total reduction) are required.
Both factors have been included in Eq. 2 to determine the time t0.5 [[] A.I.
In consequence, from the point of view of industrial practice factors affecting the Nb(C,N) strain induced precipitation kinetics need to be considered.
In those cases more attention must be paid to the rest of variables affecting Nb(C,N) precipitation kinetics.
Online since: June 2018
Authors: Saboktakin Rizi Mohsen, Javadinejad Hamidreza, Ebrahim Aghababaie, Hosseini Sayed Ahmad
Getting suitable microstructures and properties are affected using the optimum conditions of the milling process [2].
One important metal carbide is aluminum carbide (Al4C3) that is widely used to improve the mechanical properties of Al based alloys and composites.
The aim of this work is to study, how the mechanical activation and thermal process affects the synthesis, properties, microstructure and characterizations of Al4C3 particles using the solid state method.
In fact, the figures of starting materials affecting diffusion kinetics are important here.
Velgosová, “Kinetics of Mechanical Alloying, Mechanical Properties of Micro and Nanostructural Al-C Systems,” High Temperature Materials and Processes, vol. 31, no. 4–5, Jan. 2012
Online since: September 2014
Authors: Yong Shin Lee, Sang Heon Yoon
Such superior mechanical properties could be obtained by rolling the multilayer plate composed of a mixture of Teflon-Cu powder and a SPCC steel.
Results and Discussion The finite element simulation needs mechanical properties of a Teflon-Cu powder mixture and a SPCC steel.
The mechanical properties of a Teflon-Cu powder mixture depend mostly on the Cu content in a mixture.
Lancaster, Dry bearings: a survey of materials and factors affecting their performance, Tribology 6 (1973) 219-251 [2] S.
Lee, S-Y Hahm, Mechanical Property Changes in Drawing/Extrusion of Hardening Viscoplastic Materials with Damage, Int.
Showing 4621 to 4630 of 26166 items