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Online since: August 2015
Authors: Iain Todd, Alfred T. Sidambe, Paul Hatton
Among the challenges in titanium MIM is the production of components with desirable surface finishes, mechanical and chemical properties.
The MIM processing parameters were assessed to determine their effect on mechanical and chemical properties.
CP-Ti chemical properties.
Results Mechanical and Chemical Properties.
Due to the chemical, mechanical properties and biocompatibility properties observed for the MIM371 and polyMIM F180E feedstocks, it is recommended that the MIM process above can used to manufacture titanium dental implants.
The MIM processing parameters were assessed to determine their effect on mechanical and chemical properties.
CP-Ti chemical properties.
Results Mechanical and Chemical Properties.
Due to the chemical, mechanical properties and biocompatibility properties observed for the MIM371 and polyMIM F180E feedstocks, it is recommended that the MIM process above can used to manufacture titanium dental implants.
Online since: June 2014
Authors: Zhao Mei Xu, Qing An Wang, Hai Bing Wu, Zong Hai Hong
Introduction
As ceramic materials have many excellent properties, such as high insulated property, excellent heat-resistant, high wear-ability and good erode-resistant property, they are widely applied in electronic industry and mechanical industry[1].
It is great significant for selecting suitable process parameters to master the dynamic distribution of temperature field in the milling process and analyze the technological factors affecting the forming effect through the finite element simulation of temperature field.
Material Properties.
The material properties are listed in the table 1[3].
Table 1 Thermal Properties of Al2O3 ceramic Density () Melting point (℃) Boiling temperature (℃) Heat capacity () Thermal conductivity () Convective Coefficient () 3970 2050 2950 765 6.27 14 Boundary Conditions.
It is great significant for selecting suitable process parameters to master the dynamic distribution of temperature field in the milling process and analyze the technological factors affecting the forming effect through the finite element simulation of temperature field.
Material Properties.
The material properties are listed in the table 1[3].
Table 1 Thermal Properties of Al2O3 ceramic Density () Melting point (℃) Boiling temperature (℃) Heat capacity () Thermal conductivity () Convective Coefficient () 3970 2050 2950 765 6.27 14 Boundary Conditions.
Online since: July 2015
Authors: Mohd Yussni Hashim, Mohd Halim Irwan Ibrahim, Azriszul Mohd Amin, Rosli Asmawi, Najwa Mustafa
Numerous researchers like Zu and Lin [7] in their work of debinding of injection moulded for optimum mechanical properties have shown that principal factors that affecting it, is solvent debinding temperature and thermal debinding atmosphere.
They founds that mold temperature, injection time and pressure are the significant factors that affect the green strength of the green sample.
The properties of the binder constituents are shown in Table 2.
The factors that are kept constant are shown in Table 3.
Lin, “Optimizing the mechanical properties of injection molded W-4 . 9 % Ni-2 . l % Fe in debinding,” vol. 6, pp. 1–6, 1996
They founds that mold temperature, injection time and pressure are the significant factors that affect the green strength of the green sample.
The properties of the binder constituents are shown in Table 2.
The factors that are kept constant are shown in Table 3.
Lin, “Optimizing the mechanical properties of injection molded W-4 . 9 % Ni-2 . l % Fe in debinding,” vol. 6, pp. 1–6, 1996
Online since: December 2012
Authors: J. Srisertpol, P. Srinakorn, A. Kheawnak, K. Chamniprasart
The factors affecting biogas production and the dynamic response of biogas production were aimed at designing reactors for households.
The factors that influence the reaction rate are temperature, pH, organic substrate concentrations and biogas production flow rate.
The results of the biochemical properties are shown in Table 1.The biogas properties from the reactor were analysed by the Scientific Equipment Center at Prince of Songkla University and are shown in Table 2.
Biochemical properties of shrimp pond sediment No.
The biochemical properties of the shrimp pond sedimentsafter anaerobic digestion process could be reduced.
The factors that influence the reaction rate are temperature, pH, organic substrate concentrations and biogas production flow rate.
The results of the biochemical properties are shown in Table 1.The biogas properties from the reactor were analysed by the Scientific Equipment Center at Prince of Songkla University and are shown in Table 2.
Biochemical properties of shrimp pond sediment No.
The biochemical properties of the shrimp pond sedimentsafter anaerobic digestion process could be reduced.
Study on Mechanical Properties of a through Tied Arch Bridge Model with Different Wind Bracing Forms
Online since: December 2010
Authors: Sheng Kui Di, Hui Li, Fu Zhou Bai, Ai Li Zhang
Study on Mechanical Properties of a Through Tied Arch
Bridge Model with Different Wind Bracing Forms
Shengkui Dia, Fuzhou Baib, Aili Zhangc, and Hui Lid
School of Civil Engineering, Lanzhou University of Technology(LUT), Lanzhou, Gansu, 730050, China
adisk@lut.cn, bbaifuzhou800@163.com, caili696@163.com, dlih@lut.cn
Keywords: Through Tied Arch Bridge; The Form Of Wind Bracing; Static Characteristic; Dynamic Characteristic; Stability.
This article will adopt the methods of numerical simulation and experiment to study the effects of the tie arch bridge’s mechanical properties under the several common wind bracing .
The main features are: (1) Research the layout of wind bracing to the mechanical properties of tied arch bridge; (2)Produce the experimental models, and study the dynamic characteristics by experimental method; (3)Analyze the static response of the bridge under the wind loads with different wind bracing.
Fig. 1: Model and additional bob-weight In order to study the effect of the form about wind bracing to the various mechanical properties of the `structure, some steel sheets were reserved on the arch rib when the model was produced, which has bolt holes, and various type of wind bracing have been produced in advance, which guarantee that the wind bracing can be replaced at any time.
Conclusions Through two methods, include the numerical simulation and experiment, the research on mechanical properties of through tied arch bridge under different wind bracing forms, some conclusions can be found as follows: l For the through tied arch bridge, layout of wind bracing is necessary, wind bracing can improve the overall stiffness and stability of the bridge, especially in vertical, but it has little effect to the transverse stiffness and stability.
This article will adopt the methods of numerical simulation and experiment to study the effects of the tie arch bridge’s mechanical properties under the several common wind bracing .
The main features are: (1) Research the layout of wind bracing to the mechanical properties of tied arch bridge; (2)Produce the experimental models, and study the dynamic characteristics by experimental method; (3)Analyze the static response of the bridge under the wind loads with different wind bracing.
Fig. 1: Model and additional bob-weight In order to study the effect of the form about wind bracing to the various mechanical properties of the `structure, some steel sheets were reserved on the arch rib when the model was produced, which has bolt holes, and various type of wind bracing have been produced in advance, which guarantee that the wind bracing can be replaced at any time.
Conclusions Through two methods, include the numerical simulation and experiment, the research on mechanical properties of through tied arch bridge under different wind bracing forms, some conclusions can be found as follows: l For the through tied arch bridge, layout of wind bracing is necessary, wind bracing can improve the overall stiffness and stability of the bridge, especially in vertical, but it has little effect to the transverse stiffness and stability.
Online since: January 2012
Authors: Randy J. Bowers, Chad Oliver, Daniel E. Green
Chemical, mechanical, and microstructural properties are summarized in Table 1.
Mechanical Properties.
Finite element modelling of deformation processes involving dual phase steels currently relies on bulk mechanical properties.
This technique seems promising in terms of providing phase specific properties for micro-mechanical modeling of dual phase steels.
Bending performance was degraded by the same microstructural factors that affect uniaxial tension: primary inclusions and martensite banding. 3.
Mechanical Properties.
Finite element modelling of deformation processes involving dual phase steels currently relies on bulk mechanical properties.
This technique seems promising in terms of providing phase specific properties for micro-mechanical modeling of dual phase steels.
Bending performance was degraded by the same microstructural factors that affect uniaxial tension: primary inclusions and martensite banding. 3.
Online since: November 2013
Authors: Yuichi Otsuka, Yoshiharu Mutoh, Seo Nobushiro, Panya Buahombura, Yukio Miyashita
Table 1 Tensile properties of base materials and FSWed joints.
This is understandable according to its higher mechanical properties.
Lados, Processing, Microstructure, and Residual Stress Effects on Strength and Fatigue Crack Growth Properties in Friction Stir Welding: A Review, Met.
Irving, The role of residual stress and heat affected zone properties on fatigue crack propagation in friction stir welded 2024-T351 aluminum joints, Int.
Li, Mechanical properties and fatigue crack growth rates in friction stir welded nugget of 2198-T8 Al-Li alloy joints, Mat.
This is understandable according to its higher mechanical properties.
Lados, Processing, Microstructure, and Residual Stress Effects on Strength and Fatigue Crack Growth Properties in Friction Stir Welding: A Review, Met.
Irving, The role of residual stress and heat affected zone properties on fatigue crack propagation in friction stir welded 2024-T351 aluminum joints, Int.
Li, Mechanical properties and fatigue crack growth rates in friction stir welded nugget of 2198-T8 Al-Li alloy joints, Mat.
Online since: December 2024
Authors: Eka Safitri, Nasrullah Idris, Faridah Hanum, Rinaldi Idroes
In order for the PU membrane to function well as a sensor matrix, it is imperative that it possess favorable mechanical properties and exhibit a high affinity for ion binding.
D2EHPA is an ionophore that is easy to get to and has lipophilic properties that let it interact with specific target ions in both directions.
Whereas a P-value > 0.10 indicates the model factors are not significant.
The factors that significantly affect the physical performance of this membrane are A and B, namely D2EHPA and ĸ-carrageenan.
The corresponding equations are calculated based on Equation (1), which contains three single-order factors (A, B, and C), three interactive factors (AB, AC, and BC), and three quadratic factors (A2, B2, and C2) for the determination coefficients of Y (R2 = 0.91).
D2EHPA is an ionophore that is easy to get to and has lipophilic properties that let it interact with specific target ions in both directions.
Whereas a P-value > 0.10 indicates the model factors are not significant.
The factors that significantly affect the physical performance of this membrane are A and B, namely D2EHPA and ĸ-carrageenan.
The corresponding equations are calculated based on Equation (1), which contains three single-order factors (A, B, and C), three interactive factors (AB, AC, and BC), and three quadratic factors (A2, B2, and C2) for the determination coefficients of Y (R2 = 0.91).
Online since: July 2014
Authors: Ya Jun Zang
Effect study of water on the mechanical behavior of gangue
in Chongqing Tongliang mine
Zang Yajun 1, a
1School of Tourism and Land resources , Chongqing Technology and Business University, Chongqing 400067.
China azyjcdut@163.com Keywords: Water, Gangue, Mechanical behavior, Mine Abstract: This paper first analyzes the strength and deformation characteristics of gangue dispersion, Subsequent analysis of the effect of water on the strength, deformation characteristics.
Strength properties of gangue dispersion and effect of water on its strength Gangue dispersion on shear strength of coal gangue slope stability, safety is significant.
It is an important mechanical index determines its stability, and water is an important factor affecting the strength
Fig 5 Effect of moisture content on mechanical property of coal mining wastes For the same kind of gangue granular, compression deformation is mainly controlled by the saturation of the dispersion, in the same load, the greater the water content is, the pore is bigger than lower, deformation of greater; in addition, the compression curves of dispersion is not linear, but similar to a hyperbolic relationship.
China azyjcdut@163.com Keywords: Water, Gangue, Mechanical behavior, Mine Abstract: This paper first analyzes the strength and deformation characteristics of gangue dispersion, Subsequent analysis of the effect of water on the strength, deformation characteristics.
Strength properties of gangue dispersion and effect of water on its strength Gangue dispersion on shear strength of coal gangue slope stability, safety is significant.
It is an important mechanical index determines its stability, and water is an important factor affecting the strength
Fig 5 Effect of moisture content on mechanical property of coal mining wastes For the same kind of gangue granular, compression deformation is mainly controlled by the saturation of the dispersion, in the same load, the greater the water content is, the pore is bigger than lower, deformation of greater; in addition, the compression curves of dispersion is not linear, but similar to a hyperbolic relationship.
Online since: December 2010
Authors: Xue Song Zhang, Jin Ping Chen
It primarily controls technical specification of concretes material, such as the material, the mechanical properties, and the mixture ratio design and so on.
The concrete structure durability design involves complex content,many uncontrolled factors and big difficulties.
Durability design factors analysis.
It involves the basic mechanical properties, the environment function withstanded in the use period and performance condition in the use period of the concrete structure and so on.
The main influencing factors include the interior material attribute of concrete structure , the use process of concrete construction and the structure stress condition, and the environment function which is interacted by the concretes contact environment and one or several these factors causes the damage of concrete.
The concrete structure durability design involves complex content,many uncontrolled factors and big difficulties.
Durability design factors analysis.
It involves the basic mechanical properties, the environment function withstanded in the use period and performance condition in the use period of the concrete structure and so on.
The main influencing factors include the interior material attribute of concrete structure , the use process of concrete construction and the structure stress condition, and the environment function which is interacted by the concretes contact environment and one or several these factors causes the damage of concrete.