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Online since: January 2013
Authors: Wen Ping Chen, Yong Su, Ping Hu, Yan Jiang
The mechanical properties and conductivity of this aluminum conductor both comply with the requirements of wire and cable conductor cores.
Therefore, it is quite urgent to have the aluminum with both high conductivity and better integrated mechanical properties.
At four factors in the range to choose three levels and add 0.008% boron in the aluminum alloy conductor.
Also, iron affects elongation at break more.
(4) Consider two factors that mechanical properties and conductivity of aluminum conductor as wire and cable, the best process parameters for annealing treatment are: annealing temperature of 310 ° C, and holding time for 30min, direct air cool.
Online since: July 2024
Authors: Thandi Patricia Gumede, Dolly Grace Ann Selikane, Thembinkosi Donald Malevu, Mbongeni Ngwenya, Katekani Shingange, Fisokuhle Kumalo
Concerning fracture mechanics, the same trend observed in the general mechanical properties is maintained.
Yu, L, Natural biopolymer alloys with superior mechanical properties, ACS Sustain.
Van Staden, J, Eucomis zambesiaca baker: Factors affecting in vitro bulblet induction, S.
Huang, Improved mechanical properties of carbon nanotubes-coated flax fiber reinforced composites, Mater.
Vittoria, New Nanohybrids of Poly(e-caprolactone) and a Modified Mg/Al Hydrotalcite: Mechanical and Thermal Properties, J.
Online since: October 2010
Authors: Carmen Galassi, Davide Gardini
Therefore, rheology control is needed to obtain materials with enhanced properties and to reduce energy consumption.
Protocols consider besides a precise description of the tests, all other factors that can affect the results, such as the thermo-mechanical history of the samples before testing.
The rheological properties of such complex colloidal systems affect the yield of the processes in which they are used.
Viscosity, as well as many other physical properties, is affected by the temperature.
Aging of suspensions affects their rheological properties, due to a range of chemical processes like particles dissolution, formation and precipitation of insoluble salts and degradation of organic additives.
Online since: June 2013
Authors: Jun Wang, Hong Guang Ji
Among the factors related to rock slope stability, structural factors such as joints proves to be the most unfavorable.
For this highly jointed rock slope of open pit, the joint has become one of the main factors affecting slope stability, thus it is necessary to conduct qualitative and quantitative analysis for the stepped slope stability which is under control of the joint.
From this point of view, this paper will use the safety factors obtained from generalized limit equilibrium method (GLE) and Morgenstern-Price method as the basis of safety analysis.
Under the strong vibration condition, rock mass sliding force increases with the rising of vibration acceleration, which is one of the extrinsic factors resulting in landslide.
(1) Blasting is a common way of exploitation in mining area, therefore the blasting vibration effect is a significant factor affecting slope stability.
Online since: March 2015
Authors: Li Bin Guo, Feng Long Yao, Yun Fei Duan, Meng Guo
Because a laser pulse is the basic unit of the laser micro machining and its specific physical surface structure is one factor of the formation of concave-convex structure, it is necessary to extract the surface of the single pulse to study.
The spot coincidence degree can influence the machined surface roughness and the mechanical properties, thus it is one of the important technical parameters of laser micro milling.
A contour line passing through the center as the research object, as shown in Fig 7, a single pit is composed of two parts, respectively the heat affected zone and the molten pool, where the line2 is the basic plane of the material.
Since the depth D and the height H are the main factors causing the physical and mechanical properties change of roughness and change the material, and the molten pool width W is the main parameter of the micro drilling, the three parameters and the corresponding symbols can be used to describe the single pit model.
The statistical probability of the melt part is 0.7296, which affects the structure of the roughness.
Online since: June 2017
Authors: Zhou Li, Wen Yong Xu, Liang Zheng, Yu Feng Liu, Na Liu
High level of gas contents, especially oxygen and nitrogen, would seriously affect the mechanical properties of TiAl products.
Maziasz, Microstructural control and mechanical properties of dual-phase TiAl alloys, J.
Tian, et al, Effect of Yttrium on Microstructure and Mechanical Properties of Ti-43Al-9V Alloy, J.
Influence of yttrium on microstructure, mechanical properties and deformability of Ti-43Al-9V alloy[J].
Wang, et al, Microstructures and mechanical properties of hot-pack rolled Ti-43Al-9V-Y alloy sheet, J.
Online since: September 2011
Authors: Hong Wei Ma, Juan Wei
It not only provide reliable information for effectively mine for emergency relief, to reduce casualties and property losses, but also for the scientific analysis of methane explosion during the fire disaster of the spread of mixed-gas law, under the conditions of a multi-hazard disaster coupled into the incident and expansion of the conditions and factors to provide the raw data of the study[1]. 2.The virtual prototype mode According to the working conditions of coal mine and the task requirements for the carrier robot, the carrier robot configuration is shown figure 1.
It contains the mechanical unit, autonomous navigation unit, tele-operation unit, control-drive unit, environmental detection etc.
Fig. 1 The carrier robot system 2.1The mechanical structure The carrier robot mechanical unit is made up of a set of travelling device, a set of brake rigging device, two sets of removing obstacle device, a set of join-buffer device, a car body and some equipment within the car body etc.
The track is not only a major factor of affecting the robot motion’s security and stability, but also an importance condition of affecting the robot normal working.
So the mechanical unit should have the reasonable geometry parameters.
Online since: August 2009
Authors: Hai Dong Zhao, Zhi Xin Kang, Yan Fei Bai, Yuan Yuan Li
The micropores will cause blister defects in solution treatment, which prevents from improvement of the casting mechanical properties with the treatment[1-3].
To avoid the micropores resulted from the gas entrapment and fabricate die castings with high mechanical properties using solution treatment, some new methods about die casting processes have been proposed and developed recently.
Lu[7] et al reported that the impact property of Al-Si gravity casting is practically affected upon dendrite cell size.
Furthermore, effect of microstructure factors on impact property was discussed as well.
Fig. 6 presents impact properties of samples as a function of SDAS.
Online since: November 2007
Authors: Graeme E. Murch, Nilindu Muthubandara, Andreas Öchsner, Irina V. Belova
Öchsner2, d 1 Diffusion in Solids, Group, School of Engineering, The University of Newcastle, Callaghan, NSW 2308, Australia 2 Centre for Mechanical Technology and Automation, Department of Mechanical Engineering University of Aveiro, Aveiro, Portugal a Irina.Belova@newcastle.edu.au, b Graeme.Murch@newcastle.edu.au, c Nilindu.Muthubandara@studentmail.newcastle.edu.au, d aoechsner@mec.ua.pt Keywords: Segregation, diffusion, Monte Carlo, interfaces, composites Abstract.
The presence of atomic oxygen at internal metal-ceramic oxide interfaces significantly affects the physical properties of the interfaces which in turn affects the bulk properties of the material.
It is known that the presence of solute atoms such as oxygen at internal metal-ceramic oxide interfaces has a profound effect on the physical properties of the interfaces and ultimately on the bulk properties of the composite material.
In fact, this condition can be used as a definition for the segregation factor.)
Thus if we, say, multiply both w12 and w21 by a factor of 6.25 x 10 2 then the segregation layer is seen then to have a new apparent width of 10 -8 m.
Online since: June 2016
Authors: Michał Landowski, Krystyna Imielińska
Effect of SiO2 nanoparticles on the mechanical and low velocity impact properties of epoxy/glass composites Landowski Michał 1,a, Imielińska Krystyna 1,b 1 Mechanical Faculty, Gdańsk University of Technology, Narutowicza Street 11/12, 80-233 Gdańsk, Poland.
Hence rigid, inorganic particles have also been used as these can increase the toughness without affecting the Tg of epoxy polymer.
It is evident that various nanoparticles have high potential as resin reinforcement due to very large surface of particle/matrix interaction, however the majority of the results show only moderate improvements of the mechanical properties of nanoparticle –modified epoxy/carbon or glass fibre reinforced composites.
Thus energy absorption mechanisms such as nanoparticle debonding and microvoid formation can contribute to the enhacement of the mechanical properties.
Hoa, Mechanical properties of carbon fiber reinforced epoxy/clay nanocomposites: Composites Science and Technology, 2008, vol. 68, 3-4
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