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Online since: April 2021
Authors: Darminto Darminto, Retno Asih, Malik Anjelh Baqiya, Mohammad Syaiful Anwar, Kharisma Noor Afifah Supoyo, Prae Chirawatkul
An experimental study to determine the effect of Cu doping on structural properties of ZnO nanoparticle has been conducted.
Cu can change the microstructure and optical properties of the ZnO system [5].
It shows that the presence of dopant atoms with different concentrations causes stretching bonds between Cu-O, affecting the electrical properties and magnetic properties of CZO nanoparticles.
Amornpitoksuk, Preparation of Mg-doped ZnO nanoparticles by mechanical milling and their optical properties, Procedia Engineering, 32 (2012) 821–826
Asih et al., Effects of Mn Substitution on Magnetic Properties of ZnO Nanoparticles, KEM, 855 (2020) 166–171
Online since: November 2022
Authors: Bin Gang Xu, Jun Xian Huang
The main influential factors (e.g., immersion time, RH, and temperature) of the iBF are also systematically investigated.
The main experimental factors (e.g., immersion time, RH, and temperature) were systematically investigated.
The obtained PMMA@HPMs showed controllable surface micro-morphologies through changing the influential factors.
Moreover, the introduced nanomaterials have also enhanced the mechanical properties of fiber substrates, as shown in Fig. 5c and d.
The as-fabricated PMMA@HPMs that were incorporated with nanomaterials showed enhanced mechanical properties meanwhile possessing the customized functions of the added nano-additives.
Online since: April 2015
Authors: Ahmad Fauzi Ismail, Norhaniza Binti Yusof, Ieqmal Emeer Affandi, Norfadhilatuladha Abdullah, Juhana Jaafar
This paper reported the production of precursor PAN/MnO2 nanofibers via electrospinning method and studying its microstructural properties.
The factors considered in this study were polymer PAN/ MnO2 concentration which will significantly affect the specific surface area, nanofibers morphology, micro-pore volume and diameter of the nanofibers.
However, the electro-spun PAN fiber diameters can be exaggerated by many factors such applied voltage, flow rate and needle tip-collector distance.
Edie, The effect of processing on the structure and properties of carbon fibers, Carbon, 36 (1998) 345-362
Gang, Evolution of structure and properties of PAN precursors during their conversion to carbon fibers, Carbon. 41 (2003) 2805-2812
Online since: April 2019
Authors: Salahuddin Junus, Sumarji Sumarji, Robertus Sidartawan, Denni Riyanto
An increase in magnesium content will increase mechanical properties value of ADC 12 alloy.
Al-Si Alloy has good mechanical properties is high tensile strength and toughness.
The purpose of adding magnesium to the Al-Si alloy is to improve the mechanical properties of Al-Si.
Similarly, the mean shape factors for as-cast Al2Ca-added ADC12 with 0.6% Mg alloy (3.91).
Thus the mechanical properties of both tensile strength and hardness is increased.
Online since: September 2011
Authors: Zhao Wang Xia, Xiao Min Qi, Hua Bing Wen
The parameters which affect the performance of the vibration isolation are adjusted appropriately; the effects of the parameter are quantitatively or qualitatively analyzed.The proposed model utilizes a method that can be employed in a variety of dynamic systems.
Moreover, the model parameters have direct physical significance to the MRF damper properties.
The Bingham plastic model is often used to characterize MR fluid properties [6].
The factors include the excitation force , the yield force of the MRF , the viscous damping of the MRF , and the zero force , among which the last three factors are related to the compressibility of the MRF.
ASME Journal of Mechanical Design, Vol. 117 (1995) No.3, p.177 [2] A.H.
Online since: December 2011
Authors: Lu Hai Li, Xu Wei Hu, Li Xin Mo, Sheng Min Zhao, Xian Leng, Wei Wei Li, Wen Bo Li, Hua Fang, Shu Kun Li
Flake silver powder has attracted tremendous interesting due to its specially electrical and optical properties.
Currently, mechanical milling is the main method to industrially produce flake silver powder.
Any changes in reaction conditions would affect the shape of silver particles.
Factors influencing the generation mechanism of flake silver particles The shape of the silver particles is decided by internal and external factors.
Conclusions The shape of silver particles is mainly influenced by external factors.
Online since: October 2014
Authors: Guo Jian Cao, Wan Jiao Xu, Yi Cheng Feng, Wan Yong Tang
In addition, a nanoindentation was employed to characterize the mechanical properties at different radius.
On the other side, the dense inner prevents the decline of strength and provide better mechanical properties.
And the pore structure, as well as mechanical properties, of the material was also characterized.
Owing to the surface roughness made by inevitable external factors, the inner edge is partly empty.
The microstructure and the mechanical properties of the GPT were characterized.
Online since: December 2011
Authors: Zhi Ming Yu, Yang Zhang
And the static bending strength is closely related to qualification factors of VDP.
As a most important structure characteristic parameter, VDP has a great influence on physical and mechanical properties of fiberboard[1].
High pressure and high time of two segments hot-press curve are the main factors affecting VDP of fiberboard under the condition that the range of wood fiber, adhesive, moisture content and mat were the same.
Reference [1] Ee Ding Wong.1999.Formation of the density profile and its effects on the properties of particleboard.Wood Science and Technology 33:327–340
GB/T 17657—1999 Test methods of evaluating the properties of wood-based panels and surface decorated wood-based panels, Standards Press of China, Beijing, pp23–35
Online since: April 2013
Authors: Mohd Zulkefli Selamat, Mohd Shakir Ahmad, Indera Kasuma Mohamad Yunus, Mohd Syafiq Azman, Mohd Ahadlin bin Daud
The materials used in producing bipolar plate are greatly affecting its final properties.
Through this study, the properties of bipolar plate composite will be observed.
One of the key factors limiting fuel cell commercialization is the development of bipolar plates, which are one of PEMFC’s main components.
The addition of CB not only improves the electrical conductivity but also improves the mechanical properties.
Muchtar, The Effects of Thickness Reduction and Particle Sizes on The Properties Graphite – Polypropylene Composite, International Journal of Mechanical and Materials Engineering (IJMME), Vol.6 (2011), No.2, 194-200
Online since: January 2016
Authors: Guo Qin Huang, Xi Peng Xu, Mei Qin Zhang, Yi Qing Yu
The results indicate that the depth of cut is the leading factor in affecting grinding forces whereas the surface roughness is mainly governed by the grinding speed.
An yttrium vanadata (YVO4) single crystal was used as workpiece and its properties are listed in Table 1.
Table 1 Properties of the workpiece Table 2 Parameters of grinding experiments Crystal Structure Density Mohs hardness Peripheral speed vs (m/s) Depth of cut ap (µm) Workpiece velocity vw (m/min) Tetragonal: a = b = 7.12 Å c = 6.29 Å 4.22 g/cm3 ~ 5 (Glass-like) 25, 30, 50, 70 3, 5, 10, 15 0.6, 1.2, 3.6, 6 Grinding experiments were carried out on a high speed grinder (BLOHM), whose spindle is capable of running up to 8000rpm.
Combined with the experimental results of grinding forces, surface roughness and surface morphologies, it is found that the depth of cut is the leading factor in affecting grinding forces whereas the surface roughness is mainly governed by the grinding speed.
Chinese Journal of Mechanical Engineering, Vol. 43, pp.176-183, 2007
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