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Online since: November 2017
Authors: Bryan B. Pajarito, Winna Faye F. Mangaccat, Maelyn Rose M. Tigue, Monica T. Tipton
The intercalation of rubber molecules in the clay galleries results in the collapse of the stacked layered structure, dispersion of exfoliated clay particles in the rubber matrix, and creation of nanocomposites with improved thermal and physical properties.
Other fatty acids of different chain lengths (palmitic, stearic, eicosanoic, and docosanoic acid) were tested by Rooj et al. [11] to swell organo-montmorillonite, with docosanoic acid showing the most favorable mechanical properties.
Previous studies have already shown that the inclusion of treated clay in rubber could enhance its mechanical properties [4,7,10,12] due to improved dispersion of fillers in the rubber matrix.
This also agrees with the observed increase in tensile and compressive properties of NR after clay addition from a previous study [26].
The factors can be ranked as follows according to magnitude of effect: ion exchange with HDA salt > sodium activation with NaCl > wet grinding time > modification with CDEA.
Online since: April 2020
Authors: Gorkem Muttalip Simsek, Guney Guven Yapici
Introduction Shape memory alloys (SMAs) reveal extraordinary properties including shape memory effect (SME) and superelasticity (SE) [1-4].
Due to their unique properties, SMAs are used in various industries ranging from bio-related applications to automotive and aerospace [5-9].
In another work, Huang and Liu demonstrated the effect of annealing temperature on the phase transformation temperatures and mechanical properties of NiTi [14].
Demonstrating the evolution of precipitates is an elegant approach to enlighten the correlation between heat treatment parameters and mechanical properties of NiTi shape memory alloys.
The potentiodynamic tests were utilized in order to investigate the corrosion properties of NiTi samples.
Online since: March 2013
Authors: Ying Ying Chen, Li Feng Wang, Wen Jie Feng
So many scholar at home and abroad study influence of technological parameters in laser-cutting, which include laser power, cutting speed, focus position and properties of material[2-7].
Material properties changed with temperature, which is the integral value in temperature interval
According to findings of F.P.Incropera and D.P.Dewitt[11], we get the fitting curve (as shown in Equation1 and 2) on the physical properties of stainless steel plate at different temperatures by the software of MATLAB.
Proceedings of the Institution of Mechanical Engineers.1997 [4]Joachim Berkmanns, Facts About Laser Technology.
Chinese Journal of mechanical engineering.2001.5:72-77 [6]William M.
Online since: August 2019
Authors: J.P. Misra, Pawan Kumar
Modelling of Tool Wear for Ti64 Turning Operation Pawan Kumara* and Joy Prakash Misrab Department of Mechanical Engineering, National Institute of Technology Kurukshetra, Kurukshetra 136119, India apawank76@gmail.com, bjoyprakash.misra@gmail.com Keywords: Tool Wear, Turning, Titanium Alloy, Response Surface Methodology, Modelling.
Their unique physical, chemical, and mechanical properties make them suitable for various engineering field applications.
The upper level of a factor is coded as +1, center level as 0, and the lower level as −1.
But other parameter interactions are not affecting the response parameter (tool nose wear) much.
This analysis revealed that cutting speed, feed, and their interaction significantly affecting the tool nose wear.
Online since: May 2023
Authors: Gerardo Terán-Mendez, Liliana Medina-Almazán, Ruben Cuamatzi-Melendez, Apolinar Albiter Hernández
In fixed platforms, the effect of water temperature and sea water flows affect the mechanical and microstructural properties of A36 plates steels employed in the welding connections as investigated by Surojo et al. [9].
Furthermore, Surojo et al. [11] investigated the effect on the mechanical properties of seawater flow rate on welded bead’s and A36 steel plates submerged in freshwater.
The findings revealed that the changes in water flow impact on the underwater weld defects, microstructure, and mechanical properties [12].
Prabowo, Mechanical and microstructural properties of A36 marine steel subjected to underwater wet welding, Metals 2021, Vol. 11, Page 999. 11 (2021) 999
Pratikno, Effect of underwater welding in marine environment and surface welding to mechanical properties of steel weld joint, Applied Mechanics and Materials, 862 (2017) 308–314
Online since: March 2004
Authors: Wen Ji Xu, Jian Jiang Zhou, X.B. Zhai, Gui Bing Pang, Han Yun Li
Zhou School of Mechanical Engineering, Dalian University of Technology, Dalian, 116023, China Keywords: Pulse electrochemical finishing, Flow-field, Flow rate, Interelectrode gap Abstract.
The interelectrode gap is a key factor influencing the surface quality in PECF.
It is clear that variant electrolyte supply extremely affects the surface topography.
It is clear that the working gap extremely affects the surface topography by PECF.
Conclusions 576 Advances in Grinding and Abrasive Processes From the above results, it’s evident that the flow-field and the interelectrode gap are the key factors that affecting the surface quality in PECF.
Online since: April 2018
Authors: Bo Chi, Ping Feng, Dong Yan, Man Man Liu, Jian Pu, Li Jian
Although SOFC single battery comprehensive performance indicators in our country are currently synchronized with the international advanced technology level, the new precious metal ceramic electrode has not been tested for long-term operation of the full battery.In order to analyze the practicality of the new noble metal ceramic electrode, especially whether the noble metal electrode is one of the factors that cause performance degradation, this paper studies whether the noble metal Pd electrode would diffuse into the YSZ electrolyte during the energization process.The composition and morphology of the electrolytes of 350h half-cell was analyzed by the battery polarization test, SEM, EDX and Electron etching depth analysis of XPS.The result shows that the noble metal Pd element has diffused more than 100 nm into the YSZ electrolyte after350h constant current.
It would change the electrochemical performance and mechanical properties of the electrolyte to result the degradation of batteries’ performance.
When the stack is in long time working condition, that is, imposing the polarization current through the interface under the working temperature, there might be having elemental diffusion and morphological changes in the electrode - electrolyte interface of the monolithic battery, which can adversely affect battery performance.
Evans, Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 220 (2006) 85-92
Online since: December 2011
Authors: Qing Wang, De Cai Wang, Yu Mei Li
In general, because of some factors such as the level of recycling facilities and recycling agent types, our road recycling technology research level is still fragmented (not systematic), the level of renewable technologies is still developing.
Cold in plant recycling with emulsified asphalts material properties is flexible.
In addition, the emulsifier is in the strength and adhesion will occur during the formation of the chemical factors that significantly affect the emulsifying properties of regeneration can be developed larger space.
Surface layer as Recycled asphalt pavement ,Semi-rigid material and asphalt cover type of flexible wrap material can not be used to compare the mechanical index system.
Similarly, to compare with the mechanical index semi-rigid and flexible renewable technology is not very meaningful.
Online since: July 2005
Authors: Seiji Miura, Taku Sakai, Hiromi Miura, Xu Yue Yang, Yoshimi Watanabe, H. Nogawa
The mass production and usage of the Mg alloys, however, are still very limited because of its principle property; lack of ductility.
During thermomechanical processing, control of microstructure evolved by dynamic recrytsllization (DRX) is one of the most important factors to improve the ductility of Mg alloys.
The occurrence of DRX affects much on the uniform deformability of metallic materials.
After mechanical and electrolytic polishing, they were tensile tested at temperatures between 373 K and 673 K at an initial strain rate of 4.2 x 10 -4 s -1 with an Instron-type mechanical testing machine.
For a crystallographic analysis of crystal rotation and the DRX behavior of the deformed samples, orientation-imaging microscopy (OIM (Hitachi S-3500/TexSEM Inc.)) was employed after mechanical and electrolytic polishing.
Online since: September 2011
Authors: Bao Rong Huo, Xiang Dong Zhang
The displacement ductility factor increases, but its increase rate becomes slow with increasing layers of fiber cloth, so the most economical layer number is 3.
Introduction RC reinforced by FRP has advantages of excellent mechanical properties, the consolidation obviously effect and easy construction, widely used home and abroad.
In the early pressure loads, the lateral deformation of concrete columns is too small for FRP to affect.
(3) -axial compression capacity of RC columns with FRP constraints,-factor of stability,,-additional reduction coefficient,0.9,-compression strength design value of RC columns with FRP constraints,-sectional area of core concrete,- design value of compression strength,-sectional area of bar.
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