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Online since: April 2015
Authors: Azrul Azlan Hamzah, Burhanuddin Yeop Majlis, Noraini Marsi, Faisal Mohd-Yasin
The test results indicated that 3C-SiC has good fatigue properties when heated up to 1000 °C with the maximum load of 52.72 N directly bring out the maximum stress and maximum strain of 104.95 MPa and 3.2%, respectively.
Single crystal (3C-SiC) has excellent mechanical and electrical properties in terms of their high mechanical strength (GPa), high thermal conductivity (3.6 W/cm°C), high band gap (9.3 eV), high temperature performance, chemical inertness and high melting point.
These properties make 3C-SiC a suitable material operating at high temperatures, high power and high frequency as well as in harsh environment [1].
The effect by using 3C-SiC materials for extreme temperatures on mechanical properties has been extensively studied and it has been approved to upgrade into existing technology interest for MEMS devices [2].
The different materials and operating temperatures will affects the fracture path because of the different mechanical properties might be transform the initial orientation in the stress-strain criterion which is depends on the maximum of the loads can be withstand on critical strain [5].
Single crystal (3C-SiC) has excellent mechanical and electrical properties in terms of their high mechanical strength (GPa), high thermal conductivity (3.6 W/cm°C), high band gap (9.3 eV), high temperature performance, chemical inertness and high melting point.
These properties make 3C-SiC a suitable material operating at high temperatures, high power and high frequency as well as in harsh environment [1].
The effect by using 3C-SiC materials for extreme temperatures on mechanical properties has been extensively studied and it has been approved to upgrade into existing technology interest for MEMS devices [2].
The different materials and operating temperatures will affects the fracture path because of the different mechanical properties might be transform the initial orientation in the stress-strain criterion which is depends on the maximum of the loads can be withstand on critical strain [5].
Online since: May 2014
Authors: Amir Izzuddin, Ibrisam Akbar
However, the mechanical properties of GFRP vary significantly from one product to another.
Factors such as volumes and types of fiber and resin, fiber orientations and quality control during the manufacturing process, play a major role in the characteristics of the GFRP products.
The mechanical properties of GFRP are affected by the loading history and duration, temperature and moisture [4].
Their influence on various mechanical and physical properties GFRP needs to be understood.
Research with FRP materials exposed to aggressive conditions such as seawater for prolonged periods of time has demonstrated that they can experience a significant loss in mechanical properties. [6, 7].
Factors such as volumes and types of fiber and resin, fiber orientations and quality control during the manufacturing process, play a major role in the characteristics of the GFRP products.
The mechanical properties of GFRP are affected by the loading history and duration, temperature and moisture [4].
Their influence on various mechanical and physical properties GFRP needs to be understood.
Research with FRP materials exposed to aggressive conditions such as seawater for prolonged periods of time has demonstrated that they can experience a significant loss in mechanical properties. [6, 7].
Online since: April 2015
Authors: Hao Huang, Zhen Xi Li, Min Juan Wang, Chuan Xie
All these properties make it a suitable coating material for dry cutting and high speed machining applications[5].
Substrate bias (Vb) is a very important parameter for deposition and can obviously improve the ionization and bombarding energy of incoming ions, affecting the composition, microstructure and properties of Ti-Al-N films.
The comparison research on the effects of Vb on the structural and mechanical properties for Ti-Al-N films with different Al content is very useful to understand their relationships.
The mechanical properties were evaluated by MTS Nanoindenter XP with continuous stiffness measurements (CSM) mode, in which a Berkovitch-type pyramidal diamond tip indented the films to a maximum depth of 500 nm, and at least six indentations at different places on the film surface were made.
All factors contributed to residual stress determines jointly the stress evolution, thus the different stress variation with Vb occurs in TiAlN and Ti3AlN films.
Substrate bias (Vb) is a very important parameter for deposition and can obviously improve the ionization and bombarding energy of incoming ions, affecting the composition, microstructure and properties of Ti-Al-N films.
The comparison research on the effects of Vb on the structural and mechanical properties for Ti-Al-N films with different Al content is very useful to understand their relationships.
The mechanical properties were evaluated by MTS Nanoindenter XP with continuous stiffness measurements (CSM) mode, in which a Berkovitch-type pyramidal diamond tip indented the films to a maximum depth of 500 nm, and at least six indentations at different places on the film surface were made.
All factors contributed to residual stress determines jointly the stress evolution, thus the different stress variation with Vb occurs in TiAlN and Ti3AlN films.
Online since: January 2015
Authors: Umit Huner, E. Selcuk Erdogan
And then these specimen’s maximum welding strengths and energy at break point properties that were depend on heating time have been compared.
In welding zone dispersion of reinforcement and orientation could be affected by welding pressure, heating, heating time and some like properties so that cause corruption on unity of reinforced thermoplastic.
For a reinforced thermoplastic material two different types of welding process were compared some properties like joint strength, design of joint etc.
It is, therefore, important to explore the best combination of these factors to obtain the best welding result.
That happens because the fiber adhesion to the matrix is enough according the others to increase of the matrix tensions transfer efficiency through the interface and that is essential to get an elevation of the mechanical properties in the composite.
In welding zone dispersion of reinforcement and orientation could be affected by welding pressure, heating, heating time and some like properties so that cause corruption on unity of reinforced thermoplastic.
For a reinforced thermoplastic material two different types of welding process were compared some properties like joint strength, design of joint etc.
It is, therefore, important to explore the best combination of these factors to obtain the best welding result.
That happens because the fiber adhesion to the matrix is enough according the others to increase of the matrix tensions transfer efficiency through the interface and that is essential to get an elevation of the mechanical properties in the composite.
Online since: August 2013
Authors: Dong Jiang, Cheng You Ma, Yan Mei Ma, Zhi He, Chen Yan
The morphology, thermal properties, mechanical properties, etc. of the resulting ternary blend systems were investigated.
The structures obtained are usually unstable, and the mechanical properties of the blends are poor because of lack of adhesion between the phases.
PES is a high-performance engineering plastics with good mechanical and electrical properties; the high glass transition temperature (Tg≈226˚C) enables the sample to retain its modulus at an elevated temperature.
It was found that the blend is a two-phase system; display very poor mechanical properties and the dispersed phase exist between the phase of PES and PC.
Table 1 showed the mechanical properties test results of the blends.
The structures obtained are usually unstable, and the mechanical properties of the blends are poor because of lack of adhesion between the phases.
PES is a high-performance engineering plastics with good mechanical and electrical properties; the high glass transition temperature (Tg≈226˚C) enables the sample to retain its modulus at an elevated temperature.
It was found that the blend is a two-phase system; display very poor mechanical properties and the dispersed phase exist between the phase of PES and PC.
Table 1 showed the mechanical properties test results of the blends.
Online since: May 2016
Authors: Feng Xie, Xiao Bao Lei
Dianne R et al [5] compared the mechanical properties, and advantages and disadvantages of different ceramic materials which are applied to dental restoration.
And he studied the mechanical properties, biocompatibility and cutting performance of zirconium biscuit in the semi-sintered state.
Mechanical properties of materials mainly relates to the strength and hardness.
During the machining process of ceramic material, edge chipping is a common phenomenon, and which is one of the key factors deciding the qualities of ceramic denture.
Materials used for denture restoration should own good mechanical properties, biocompatibilities and machining properties.
And he studied the mechanical properties, biocompatibility and cutting performance of zirconium biscuit in the semi-sintered state.
Mechanical properties of materials mainly relates to the strength and hardness.
During the machining process of ceramic material, edge chipping is a common phenomenon, and which is one of the key factors deciding the qualities of ceramic denture.
Materials used for denture restoration should own good mechanical properties, biocompatibilities and machining properties.
Online since: December 2013
Authors: Long Zhi Zhao, Ming Juan Zhao, Jian Xiao, Jian Zhang
From the dynamics model, the main factors affecting the reaction rate of the system are heating temperature, nickel content and the diffusion layer thickness δ.
Introduction The metal matrix composites can be prepared with in-situ reaction method, which has high mechanical properties.
Main factors affecting the reaction rate is heating temperature, particle size of Ni and thickness of the diffusion interlayer δ.
Introduction The metal matrix composites can be prepared with in-situ reaction method, which has high mechanical properties.
Main factors affecting the reaction rate is heating temperature, particle size of Ni and thickness of the diffusion interlayer δ.
Online since: October 2014
Authors: Hao Liu, Yan Chao Shi, Jia Jun Li, Guang Chao Chen
The mechanical property of as-deposited Cu film was measured by scratch test method.
Theory calculation shows these properties were connected to kinetic energy of atoms in the plasma.
For a deposition process is controlled by adsorption and desorption, there should be mixed factors affecting it.
Second, kinetic energy of atoms plays an important role on films’ properties. kinetic energy of atoms was calculated by Maxwell-Boltzmann assumption.
Results shows that high-energy atoms play an important role on films’ properties.
Theory calculation shows these properties were connected to kinetic energy of atoms in the plasma.
For a deposition process is controlled by adsorption and desorption, there should be mixed factors affecting it.
Second, kinetic energy of atoms plays an important role on films’ properties. kinetic energy of atoms was calculated by Maxwell-Boltzmann assumption.
Results shows that high-energy atoms play an important role on films’ properties.
Online since: June 2012
Authors: Li Jian Dong, Peng Xing Yi, Yuan Xin Chen
is the design variable, the coefficients are called the effects of the factors.
Fig.1 Geometry of planet carrier and selected design variable Fig.2 Distribution of the design points Fig.3 FE meshing model Fig.4 Boundary conditions The material properties and the boundary condition.
The mechanical properties of the material are given in table 2.
Each load is 7.92MPa (Fig.4.D.E.F) Table 1 Mechanical properties of the material Material Name Young’s Modulus(N/m^2) Poisson’s ratio Density(kg/ m^3) Yield strength(N/m^2) QT700-2 1.69E+11 0.305 7090 4.20E+08 42CrNiMo 2.12E+11 0.28 7850 9.30E+08 Result and discussions Response surface analysis.
“Mechanical Optimization Design (Section2)”, Beijing: Metallurgy Industry Press, (1995).
Fig.1 Geometry of planet carrier and selected design variable Fig.2 Distribution of the design points Fig.3 FE meshing model Fig.4 Boundary conditions The material properties and the boundary condition.
The mechanical properties of the material are given in table 2.
Each load is 7.92MPa (Fig.4.D.E.F) Table 1 Mechanical properties of the material Material Name Young’s Modulus(N/m^2) Poisson’s ratio Density(kg/ m^3) Yield strength(N/m^2) QT700-2 1.69E+11 0.305 7090 4.20E+08 42CrNiMo 2.12E+11 0.28 7850 9.30E+08 Result and discussions Response surface analysis.
“Mechanical Optimization Design (Section2)”, Beijing: Metallurgy Industry Press, (1995).
Online since: December 2012
Authors: Sureshkumar Manickam Shanmugasundaram, Lakshmanan Damodhiran, Murugarajan Angamuthu
Drilling of such materials is a challenging task because of differential machining properties and checking the quality of hole is significantly a great attention.
Introduction Composite materials are used in industrial fields, such as aerospace, aircraft, automobile and sports, owing to their advantages in mechanical properties.
Smaga et al [9] found that feed rate is the most important factor which affects the surface roughness of the hole as well as fatigue life.
Lincoln et al conducted experiments in steel using HSS tool to drill the hole at flooded, MQL & dry lubrication levels which proved lubrication affects the hole quality [10].
[5] Sonbaty El, Khashaba U.A, Machaly T, Factors affecting the machinability of GFR/epoxy composites, Comp Structures, 63, pp.329-338,2004
Introduction Composite materials are used in industrial fields, such as aerospace, aircraft, automobile and sports, owing to their advantages in mechanical properties.
Smaga et al [9] found that feed rate is the most important factor which affects the surface roughness of the hole as well as fatigue life.
Lincoln et al conducted experiments in steel using HSS tool to drill the hole at flooded, MQL & dry lubrication levels which proved lubrication affects the hole quality [10].
[5] Sonbaty El, Khashaba U.A, Machaly T, Factors affecting the machinability of GFR/epoxy composites, Comp Structures, 63, pp.329-338,2004