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Online since: August 2007
Authors: B. Ertug, O. Addemir, T. Boyraz
An Investigation of the Mechanical Properties And Fracture
Characteristic of Hot-Pressed Boron Nitride Ceramics
B.
However, the degree of the anisotropy depends on the type of the mechanical property.
In the present study, the primary aim is to determine the degree of anisotropy of hot-pressed hBN based ceramics for various mechanical properties.
To achieve this goal, the full mechanical characterization of hot-pressed ceramics was performed in order to investigate to what extend the fast-fracture parameters (MOR and KIC) are dependent on the direction and finally conclude which mechanical properties are associated with the anisotropy most.
The effect of the anisotropy of hot-pressed h-BN based ceramics for various mechanical properties was determined.
However, the degree of the anisotropy depends on the type of the mechanical property.
In the present study, the primary aim is to determine the degree of anisotropy of hot-pressed hBN based ceramics for various mechanical properties.
To achieve this goal, the full mechanical characterization of hot-pressed ceramics was performed in order to investigate to what extend the fast-fracture parameters (MOR and KIC) are dependent on the direction and finally conclude which mechanical properties are associated with the anisotropy most.
The effect of the anisotropy of hot-pressed h-BN based ceramics for various mechanical properties was determined.
Online since: August 2013
Authors: Ke Juan Chen, Da Liang Xu, Sha Xu
The mixing quality of rubber compound directly affects the quality, performance and longevity of the rubber products [1].
This paper takes two different tread rubbers to make two-stage mixing experiments in different process parameters such as rotor speed and filling factor, and study their effects on the properties of rubber compound.
Mooney viscosity is an important indicator to measure the flow properties and processability of rubber compound.
After the second stage mixing, GOTECH curometer is needed to test the vulcanizing properties of the two formula rubber compounds.
(2)The temperature rise during mixing process is related to the rotor speeds and the filling factors.
This paper takes two different tread rubbers to make two-stage mixing experiments in different process parameters such as rotor speed and filling factor, and study their effects on the properties of rubber compound.
Mooney viscosity is an important indicator to measure the flow properties and processability of rubber compound.
After the second stage mixing, GOTECH curometer is needed to test the vulcanizing properties of the two formula rubber compounds.
(2)The temperature rise during mixing process is related to the rotor speeds and the filling factors.
Online since: September 2011
Authors: Bin Lian Zou, Xin Qi Yang, Jia Hua Chen
In the low stress intensity factor range (△K) region, the FCP rate in Nugget Zone (NZ) was lower than that in AS of the HAZ, but in the high △K region, the situation was contrary.
Compared with the standard of International Institute of Welding (IIW), FCP rates in all regions were lower and it concluded nice fatigue properties of FSW 7075-T6.
However, data concerning mechanical behavior of FSW joints is still destitute.
Table 1 and Table 2 summarize its typical chemical composition and some mechanical properties.
This phenomenon is affected by the combined action of two facts.
Compared with the standard of International Institute of Welding (IIW), FCP rates in all regions were lower and it concluded nice fatigue properties of FSW 7075-T6.
However, data concerning mechanical behavior of FSW joints is still destitute.
Table 1 and Table 2 summarize its typical chemical composition and some mechanical properties.
This phenomenon is affected by the combined action of two facts.
Online since: January 2016
Authors: L. Vijayaraghavan, P. Suya Prem Anand, Narayanan Arunachalam
Due to its excellent mechanical, biological and optical properties, it replaces the infrastructure of metal dental prosthesis in dental application and used as a structural application in engineering such as gas sensor, manufacture of cutting tools and refractories [1].
The mechanical properties strongly depends on its grain size where smaller grain size are associated with lower transformation rate but larger grain size above critical value are less stable and transform spontaneously from tetragonal to monoclinic [5].
Fig.1, shows the experimental setup of surface grinding machine and Table.1, gives the mechanical properties of yttrium partially stabilized zirconia.
Mechanical properties of Yttrium partially stabilized zirconia Serial Number Mechanical Properties Yttrium Partially Stabilized Zirconia 1 Vicker Hardness [GPa] 13 2 Fracture Toughness [MPa] 8.05 3 Young Modulus [GPa] 210 4 Sintered Density [g/cm3] 6.08 Grinding Wheel Work Piece Fixture Fig.1.
Surface roughness is not as sensitive to grinding condition as in the case of metal and more affected by the difference in the material properties.
The mechanical properties strongly depends on its grain size where smaller grain size are associated with lower transformation rate but larger grain size above critical value are less stable and transform spontaneously from tetragonal to monoclinic [5].
Fig.1, shows the experimental setup of surface grinding machine and Table.1, gives the mechanical properties of yttrium partially stabilized zirconia.
Mechanical properties of Yttrium partially stabilized zirconia Serial Number Mechanical Properties Yttrium Partially Stabilized Zirconia 1 Vicker Hardness [GPa] 13 2 Fracture Toughness [MPa] 8.05 3 Young Modulus [GPa] 210 4 Sintered Density [g/cm3] 6.08 Grinding Wheel Work Piece Fixture Fig.1.
Surface roughness is not as sensitive to grinding condition as in the case of metal and more affected by the difference in the material properties.
Online since: June 2014
Authors: Yeong Sant Kuo
The porosity content of A201 aluminum alloy was affected by the local solidification time and solidus velocity in this study.
Introduction A201aluminum alloy has the highest mechanical properties among all the cast aluminum alloys, the tensile strength of A201 is even stronger than some wrought aluminum alloys, such as: 6061 and 6050.
Both of solidification time and solidus velocity are affecting the porosity content in A201 aluminum alloy plate castings, but cannot individual precisely describe porosity formation during solidification process.
Berry, “A Reexamination of Factors Affecting porosity [5] J.E.
Hatch, “Aluminum Properties and Physical Metallurgy” ch.6, ASM (1984) [6] ASM Metals Handbook “Castings” Vol.15 9th.
Introduction A201aluminum alloy has the highest mechanical properties among all the cast aluminum alloys, the tensile strength of A201 is even stronger than some wrought aluminum alloys, such as: 6061 and 6050.
Both of solidification time and solidus velocity are affecting the porosity content in A201 aluminum alloy plate castings, but cannot individual precisely describe porosity formation during solidification process.
Berry, “A Reexamination of Factors Affecting porosity [5] J.E.
Hatch, “Aluminum Properties and Physical Metallurgy” ch.6, ASM (1984) [6] ASM Metals Handbook “Castings” Vol.15 9th.
Online since: December 2018
Authors: David Martin, Pasi Suikkanen, Ville Ritola, Juha Pyykkönen, Magnus Carlsson
Precise material internal tolerances and controlled manufacturing processes are key factors for enhanced properties for direct quenched and tempered (DQ+T) steel.
Mechanical Properties The new steel, when rolled using the optimized plate rolling practices, meets or exceeds the requirements of EN 10025-6 for the S690QL grade.
Table 2 shows the mechanical properties of the newly developed steel compared to EN 10025-6 S690QL requirements.
In order to ensure excellent weldability and heat affected zone (HAZ) properties, the carbon equivalent is kept at a low level (see Table 3.).
This optimized processing resulted in a good combination of mechanical properties with exceptional increases in impact toughness and DBTT.
Mechanical Properties The new steel, when rolled using the optimized plate rolling practices, meets or exceeds the requirements of EN 10025-6 for the S690QL grade.
Table 2 shows the mechanical properties of the newly developed steel compared to EN 10025-6 S690QL requirements.
In order to ensure excellent weldability and heat affected zone (HAZ) properties, the carbon equivalent is kept at a low level (see Table 3.).
This optimized processing resulted in a good combination of mechanical properties with exceptional increases in impact toughness and DBTT.
Online since: November 2012
Authors: Lin Bo Li, Jing Guo, Fei Peng Lou
Pr-Fe-Al, Nd-Fe-Al, have received much attention because of the rather good physical properties, such as the low-temperature superconducting performance of La-based bulk metallic glasses[1], and the excellent ambient temperature ductility of Ce-based bulk metallic glasses [2].
To date, the magnetic properties, crystallization kinetics and structural changes of Nd-, Pr- and Ce-based BMGs have been studied extensively, however there is little information available on the Sm-based BMGs.
It can be used for the structural materials, non-maskable materials and control material of the atomic reactors [3] for its nuclear properties.
One of the key factors of corrosion resistance is the structural difference [7].
Mechanical properties And corrosion resistance of Fe41Co7Cr15Mo14C15B6Y2 bulk amorphous alloy.
To date, the magnetic properties, crystallization kinetics and structural changes of Nd-, Pr- and Ce-based BMGs have been studied extensively, however there is little information available on the Sm-based BMGs.
It can be used for the structural materials, non-maskable materials and control material of the atomic reactors [3] for its nuclear properties.
One of the key factors of corrosion resistance is the structural difference [7].
Mechanical properties And corrosion resistance of Fe41Co7Cr15Mo14C15B6Y2 bulk amorphous alloy.
Online since: November 2015
Authors: Amrifan Saladin Mohruni, M. Yanis, E. Sundari, A.Y. Budiman, E.S. Martomi
Domestic and foreign scholars have had a lot of studies on determination method and influencing factors of surface roughness [1].
The surface quality of solid wood products is one of the most important properties influencing further manufacturing processes such as finishing or strength of adhesive joints.
Laminated lumber with smoother surfaces will have a better glue line, resulting in higher strength properties.
Surface roughness of wood can be affected by various factors such as annual ring variation, wood density, cell structure, and late wood/early wood ratio.
In order to know surface quality and dimensional properties, it is necessary to employ theoretical models for prediction purpose [4].
The surface quality of solid wood products is one of the most important properties influencing further manufacturing processes such as finishing or strength of adhesive joints.
Laminated lumber with smoother surfaces will have a better glue line, resulting in higher strength properties.
Surface roughness of wood can be affected by various factors such as annual ring variation, wood density, cell structure, and late wood/early wood ratio.
In order to know surface quality and dimensional properties, it is necessary to employ theoretical models for prediction purpose [4].
Online since: May 2011
Authors: Jin Bao Li, Hui Juan Xiu, Li Jun Wang, Qin Han
At present, the techniques of graft copolymerization are extensively applied to alter the inherent physical and mechanical properties of both natural and synthetic polymers, as the modified materials can find wide industrial and biomedical applications[5].
However, there are a mass of fine components which affect paper physical properties in wheat straw pulp.
Paper properties.
Clearly, the reaction time is one of the vital factors in affecting the grafting efficiency.
Paper properties of grafted wheat straw pulp.
However, there are a mass of fine components which affect paper physical properties in wheat straw pulp.
Paper properties.
Clearly, the reaction time is one of the vital factors in affecting the grafting efficiency.
Paper properties of grafted wheat straw pulp.
Online since: December 2011
Authors: Liang Sheng Wu, Chong Nian Qu, Jian Feng Ma, Yi Chuan Xiao
But the mechanical properties of the joint interface are dominated by contact state, the average contact pressure, materials of the combined pieces, processing methods, whether the media in or not, and many other types of factors.
The experimental method is also given with some results of the mechanical properties of oily porous media joint interface.
Porous metallurgy materials is a new kind of materials developed within the last ten years, it has the properties of structural materials and functional materials.
The paper analyses the mechanical properties of oily porous materials joint from a theoretical point.
Experimental Research on Mechanical Properties of Metallurgical Powder Material, Modern Manufacturing Engineering.
The experimental method is also given with some results of the mechanical properties of oily porous media joint interface.
Porous metallurgy materials is a new kind of materials developed within the last ten years, it has the properties of structural materials and functional materials.
The paper analyses the mechanical properties of oily porous materials joint from a theoretical point.
Experimental Research on Mechanical Properties of Metallurgical Powder Material, Modern Manufacturing Engineering.