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Online since: June 2015
Authors: Wilson Acchar, Alan Christie Silva Dantas, Geciane A. Santos, Leticia M. Oliveira, Nelson C. Olivier, Andrea de Vasconcelos Ferraz
The aim of this study is to evaluate the effect of the infiltration of melted PHB on the mechanical properties of porose HA bodies.
For such application, critical factors for the success of the implant include an appropriate project, the correct selection of materials and its biocompatibility [1].
Its decomposition takes place gradually, keeping its mechanical properties for a longer time when compared to other polymers, for example, poly lactic acid (PLA) [3].
The presence of TCP does not adversely affect the biological properties of HA since TCP is a bioresorbable ceramic.
These properties improve the success probability of the implant and additionally improves the mechanical bonding with the bone [7].
Online since: February 2022
Authors: Anna Norman, Vladislav Smolentsev, Alexander Norman, Igor Starodubtsev
Difficulty in developing additive technology for forming small diameter channels (0.6... 3.0 mm) with galvanic-mechanical coatings consists in an integrated approach to the design of the process, which should take into account not only the requirements for the output characteristics of the formed layer (dimensional and geometric accuracy, high quality, corrosion resistance), but also multiple factors related to the process conditions, starting from the calculation of the design of the ET, GMC modes, and ending with physical and chemical processes occurring in the treatment zone.
If you choose the modes, it should be taken into consideration that the such coatings must be uniform and have a non-porous structure at a given thickness, have low roughness, and good adhesive properties.
This change is due to the fact that the purity of the hole treatment and the geometry of the leading edge determine the flow factor.
Analysis of the adhesion properties of the GMC layers showed that for the range of treatment modes under consideration, the adhesion strength of chromium to the substrate is higher than the strength of the coating itself.
Mechanical Engineering, Moscow, 2005, pp. 77-81
Online since: November 2012
Authors: Hai Tao Luo, Yu Wang Liu, Wei Jia Zhou, Yu Quan Leng
In this paper unique electro-mechanical system is presented to meet application requirements, as shown in Fig.1.
The mechanical structure of new transmission sensor system is composed of coupling joint, screw, slotted nut, pin, thin-walled shell and strain gauge.
Firstly, the functions of transmission factors and sensing factors are deduced which is the key of the sensing system research[4].
According to mechanical properties, the maximum stress and maximum deformation of shell can be shown as, (1) In equation, Rs means external diameter of shell, rs means inner diameter, Gs means modulus in shear, tR means shearing stress about surface of radius R and gR means shearing strain about surface of radius R.
The mainly affecting factors are the strength and stability of screw, strength at slotted area of nut and shear stress, shear stress of the pin, nut thread tooth strength, thread locking and shell torsional strength, etc.
Online since: March 2007
Authors: Fei Deng, Nobuo Takada, Toshio Ogasawara
Recently, it is believed that SWNTs, MWNTs and carbon nanofibers (CNFs) can be used as filler in polymer matrices leading to composites with many enhanced properties, especially in mechanical properties [9-12].
However, the effect of mechanical properties at different temperatures has not been reported in CNT/polymer composites.
PEEK is a high performance thermoplastic material that retains its good mechanical properties even at high temperatures.
By introducing CNTs to enhance the mechanical, electrical and thermal properties, the potential will be advanced.
In order to characterize the thermal mechanical properties, composites with different MWNTs concentrations were tested with a dynamic mechanical thermal analyzer (DMA).
Online since: December 2010
Authors: Zhi Yu Zhao, Guang Tao Zhou, Bi Bo Xia, Su Zhi Zhang
The influence of the current density, pulse frequency, duty cycle, and other factors on surface roughness were examined, and the optimal parameters was determined.
Introduction Stainless steel has been widely used in temperature, hot-spot indication, nuclear and chemical industries, transportation, construction and medicine in recent years due to its excellent corrosion resistance and mechanical property[1].
Many factors need to be controlled properly because they influence the polishing quality of electrochemical polishing.
Because of removing polarization and heat by power gap, this discontinuous process will help the physical, chemical properties to improve the quality of polishing.
Polishing experiment of stainless steel SUS201, SUS202 and SUS430 shows that the current density, pulse frequency and duty cycle are the important factors affecting polishing quality.
Online since: December 2013
Authors: Safian Sharif, Faiz Ahmad, Tze Keong Woo, Mohd Azuwan Maoinser
The delamination and damage factor exhibit during the drilling of GFRP cannot be ignored as it significant reduce the mechanical properties and further influence its reliability in application.
Due to the nature and properties of glass fiber, the use of coolant is not suitable.
High temperature generated by the friction between the tool bit and the work piece will change the mechanical properties of the GFRP [6].
The fabricated samples were tested for its mechanical properties.
It is very crucial to produce samples with constant fiber volume fraction, as different fraction will influence the mechanical properties of the GFRP [13].
Online since: May 2015
Authors: Veronika Păltânea, Horia Gavrila, Veronica Manescu Paltanea
The magnetic properties were measured with a single strip tester in the range of frequency from 10 ÷ 200 Hz at 1 T peak magnetic polarization.
The induced stresses that appear as a result of plastic deformation, will lead to a deterioration of the magnetic properties.
The values of the magnetic properties, used in the graphical representations, have been calculated by averaging the experimental sets of data.
Conclusions In order to find the best way to prepare the magnetic core of an electrical machine it should be also considered – excepting the magnetic properties of the NO FeSi and especially the values of the energy losses – the evolution of the material microstructure in the cut affected areas, which should impose recondition treatments, as well as the total economic cost of the machine.
The fully processed steel sheets are not annealed after being mechanical cut, so that local plastic strains and internal stresses alter their magnetic properties.
Online since: September 2013
Authors: Andrés Remacha Gete, Guillermo Riesco Muñoz
However, the alternative method of testing small defect-free specimens and implementing reduction factors to obtain mechanical properties has been reported to be of little use with oak wood [13,14].
Among the qualitative variables studied: presence of pith, presence of collapse (crushing or distortion of wood cells during drying), only presence/absence of collapse affects mechanical properties.
McDonald, Investigation of the mechanical properties of red oak 2 by 4´s.
Determination of some physical and mechanical properties.
Toratti, Probabilistic treatments of mechanical properties of wood, in: P.
Online since: December 2007
Authors: Bo Zhao, Guo Fu Gao, Qing Hua Kong, Chuan Shao Liu, Feng Jiao
Experimental Research on Temperature Field in Ultrasonic Assisted Grinding Engineering Ceramics Guofu Gao 1,2,a , Chuanshao Liu1,b, Bo Zhao 1,c , Feng Jiao 1 , and Qinghua Kong2 1 School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo, China 2 School of Mechanical Engineering, Tongji University, Shanghai, China a gaogf@hpu.edu.cn, blcs@hpu.edu.cn, czhaob@hpu.edu.cn Keywords: Temperature field, Ultrasonic grinding, Engineering ceramics Abstract.
As one of the key factors grinding heat has a significant effect on the ground surface quality in grinding engineering ceramics using diamond grinding wheel.
Differences between mechanical and physical performances of ceramic materials and grinding parameters have important influences on the surface temperature distribution.
According to the results of orthogonal experiments on grinding parameters, the grinding depth is the most important factor affecting the grinding temperature on the workpiece surface.
Both of the factors made the surface temperature of grinding zone change slightly.
Online since: March 2017
Authors: Mohd Halim Irwan Ibrahim, Mohd Hilmi Othman, Sulaiman Hasan, Siti Zubaidah Khamis
The highest value of S/N ratio indicates the best setting for the selected factors and biggest difference between the signal to noise ratio indicate the most influential factor that affecting shrinkage and warpage of the injected mould samples.
Since melt temperature was the most influential factor that affecting warpage, the finding was similar to previous research that melt temperature shall provide the optimum level [1].
Optimization of mechanical properties of recycled plastic products via optimal processing parameters using the Taguchi method.
Influence of injection parameters and mold materials on mechanical properties of ABS in plastic injection molding.
Optimization of injection parameters for mechanical properties of specimens with weld line of polypropylene using Taguchi method.
Showing 3271 to 3280 of 25869 items