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Online since: April 2016
Authors: Md. Saidin bin Wahab, Abduladim Salem Bala, Mazatusziha binti Ahmad
Machine parameter setup is the most important aspect that affects product integrity, because it has a direct and significant effect on the physical and mechanical properties of the part.
In contrast, Domingos (2012) reported that the deposition and extrusion velocities have the highest influence in terms of Road Width (Raster Width) which in turn affect in the porosity and mechanical properties.
Shape and size are both nozzle features, which specify the extruded material profile, consequently affecting the part quality.
Nano-additives improve the mechanical, thermal and conductivity properties.
The results of the tensile tests and the dynamic mechanical analysis indicated that the VGCFs provided additional stiffness and strength while not appreciably affecting the viscous response of the ABS.
Online since: November 2012
Authors: Long Wei Chen, Shang Jiu Meng, Yu Run Li, Zhuo Shi Chen
The permafrost as a kind of special soil shows the significant mechanical properties from the following two aspects: the sensitivity to the temperature change, and the instability in the physical and mechanical properties.
The unique mechanical properties of the seasonal frozen ground site are most likely to cause two kinds of engineering diseases.
The uncertainty analysis method regards the process of seismic ground motion as a random process with many discrete complex factors.
Because the remodeling mechanical properties of soil which differs from the actual site, whether the laboratory test can detect the variations of the soil shear wave velocity should be modified.
These studies analyzed the influence factors of ground surface response, built a variety of frozen soil mode and the seismic response analysis of soil layer.
Online since: November 2012
Authors: Mubashir Gulzar
Linear Analysis of Crack Propagation in a Solid Rocket Propellant Mubashir Gulzar NUST College of Electrical and Mechanical Engineering, National University of Sciences and Technology, H12, Islamabad, Pakistan amubashir_nustian@hotmail.com Keywords: Stress Intensity Factor (K), PSM 4 Sheet, LEFM, Poisson’s Ratio, Elastic Modulus Abstract.
But the decay and wear of a product cannot be totally avoided, so the life of the product is of primary concern particularly which can affect the human lives.
The material properties of PSM-4 are Elastic Modulus = 4.14 MPa Poisson’s Ratio = 0.5 Polyurethane material finds its major use in the modeling of solid rocket propellant.
Comparison of Results The Stress Intensity Factors at different applied loads can be compared for centrally cracked PSM-4 sheet specimen by using the above discussed experimental and software analysis results.
Gloss “A Photoelastic Investigation into the Effects of Cracks and Boundary Conditions on Stress Intensity Factors in Bonded Specimens” May, 2000 Blacksburg, Virginia [6] Dr.
Online since: June 2015
Authors: Narcis Mestres, Philippe Godignon, Osamu Eryu, Gemma Rius
In spite of numerous experimental and theoretical works the understanding and control upon crucial factors such as step and terrace stability or surface roughening is not fully comprehended and then technologically optimized.
Graphene growth on SiC wafers is one of the most promising routes for benefiting from the intrinsic properties of graphene in planar technology electronic applications.
Instead, Si-terminated SiC substrates require the formation of the so-called C buffer layer to enable the epitaxial growth of graphene films, which results detrimental to graphene structural, therefore, functional properties.
Evaluated as independent variables our study exemplifies a fine but very complex interplay of factors.
As it occurs for both CMP and MP substrates, SiC de/reconstruction is probably influenced, among other factors, by the use of the graphite cap, which is discussed below.
Online since: June 2022
Authors: Henry Hu, Xueyuan Nie, Su Feng Liu, N.C. Kar, Anita Hu
This review describes various properties of aluminum-iron alloys including mechanical properties and electrical conductivities, as well their relation to the Fe contents.
Especially, Fe promotes the mechanical properties without significantly sacrificing the electrical properties of aluminum, as it exceeds to 2 wt. %.
The effect of Fe content on mechanical properties and electrical conductivity of Fe-containing Al alloys is discussed.
By taking advantages of unfinished interactions, incomplete diffusion and precipitation, and other factors, nonequilibrium microstructure containing specific phases is obtained, which is thermodynamically unavailable in equilibrium.
Mechanical Properties of Al-Fe Alloys.
Online since: March 2010
Authors: Zhao Hui Hu, Li Ma, Hai Bo Wang
Synthesis and mechanical property evaluation of Ti-TiAl metal-intermetallic microlaminate composite Li Ma 1, a, Haibo Wang1,b, Zhaohui Hu2,c 1 College of Physics and Electronic Engineering, Taizhou University, Taizhou 318000, PR China 2 Shenzhen Graduate School, Harbin Institute of Technology, Shenzhen 518055, PR China a mali2013@163.com, bhb.wang_hit@163.com, chuzhao_hui@163.com Keywords: Laminated composite; Ti/TiAl; EB-PVD; Mechanical properties Abstract.
The microstructure and various properties have been explored.
Intermetallic-based systems have the potential to exhibit high temperature properties superior to superalloys for these applications [1-3].
In the present work, the synthesis and mechanical properties of Ti/TiAl microlaminate sheet have been studied.
Correspondingly, the obvious stage of plastic deformation in stress-strain curve of micro-laminate indicates the mechanical property has been improved.
Online since: July 2021
Authors: Olena Bryhada, Ilgar Dadashov, Anatolii Grytsenko, Olha Rybalova, Anton Matsak
Plastic materials have high stability and excellent physical and mechanical properties, which ensures their reusability.
Effective use of recovered plastics requires an understanding of their mechanical properties.
Kozlovskaya, A study of significant factors affecting the quality of water in the Oskil River (Ukraine).
Assessment of the Mechanical Properties of Pet Polymer Material from Recovered Plastic Bottles.
Mechanical and Thermal Properties of Interlocking Bricks Utilizing Wasted Polyethylene Terephthalate.
Online since: December 2013
Authors: Xi Yang Sun, Dong Mei Li
This depends on the size of the effect especially in the rheological properties and friction characteristics.
Rheological properties.
It indicates that the size of plastic micro-forming equals to grain size, the heterogeneity properties of material microstructure has a significant impact on the plastic deformation of the blank.
As shown in Fig. 4, the effect of properties of each grain (shape, size, orientation) on the mechanical properties and deformation behavior of the blank become dominant.
The effects of size effect, forming speed, other factors on plastic micro-forming based on experiments must be studied profoundly.
Online since: November 2025
Authors: Josef Duliškovič, Šárka Houdková, Žaneta Dlouhá, Jiří Frank, Hana Jirková
The results show that heat treatment has a significant effect on the properties of the coating.
However, this solution brings problems related to the negative effect of hydrogen on the mechanical properties of the pipeline material, such as the frequently used X52 steel [2].
Important parameters for successful Cold Spray coating application are temperature and pressure, deposition distance and nozzle design, which can affect the properties and adhesion of the coating.
The reduction of coating porosity also has a positive effect on the mechanical properties of the coating, corrosion resistance and resistance to hydrogen embrittlement [7, 9, 10].
The main factors that were evaluated for microstructures were coating thickness, porosity, and the presence of defects.
Online since: May 2014
Authors: Da Guang Li, Zeng Cai Li, Ye Guo
This article analyzed from the aspects of reservoir, oil production, storage and transportation, etc the effects of colloid asphalt, the asphalt deposition analyses the influence factors, in view of the colloidal asphaltene harm, put forward the methods and measures to improve colloid asphalt influence.
In the process of reservoir evolution and migration, due to the pressure, temperature, and factors such as reservoir fluid to a change in the group, asphaltene precipitation analysis may from crude oil system, bring a lot of difficulties to the reservoir development.
Colloid asphalt environment impact analysis of crude oil Part of asphaltene dissolved in oil, while more most of the asphaltene is in a state of suspended colloid particles, colloid will parcel on the asphaltene molecules, to form clumps and prevent asphaltene precipitation, colloid is insufficient or other factors can lead to a state after damage, so as to make the asphaltene deposition occurred during oil system [7], affects the viscosity of crude oil.
(3) Adding light oil viscosity, however, mix oil changed the composition of crude oil and colloidal properties, can lead to a suspended the asphalt deposition in crude oil, pipeline and heat transfer process in trouble
Research on anti-aging properties of recycled asphalt.
Showing 8831 to 8840 of 25935 items