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Online since: September 2019
Authors: Janak Mistry, Artem Osipov, Victor A. Klinkov, Margarita G. Dronova, Aleksander V. Semencha
At the same time, from the analysis which is carried out by us existence of a set of factors which influence on physicochemical characteristics of chalcogenide glasses is visible.
Studying of the main mechanical characteristics (density, microhardness, Young's modulus module), thermal properties (vitrification temperature), optical properties (index of refraction, edge of absorption), water dissolution.
Some properties of glasses in the As2S3-Br-I system are presented.
It can be seen that this affects the optical properties of the glass.
As a rule, this changes the width of the forbidden zone, the degree of amorphous glass, and also changes the mechanical properties of glass.
Studying of the main mechanical characteristics (density, microhardness, Young's modulus module), thermal properties (vitrification temperature), optical properties (index of refraction, edge of absorption), water dissolution.
Some properties of glasses in the As2S3-Br-I system are presented.
It can be seen that this affects the optical properties of the glass.
As a rule, this changes the width of the forbidden zone, the degree of amorphous glass, and also changes the mechanical properties of glass.
Online since: August 2011
Authors: Qing Bin Yang, Xiao Yang
Introduction
Many researchers pay attention to the mechanical property of the blended yarn.
The tensile property of different yarns is determined.
The pure cotton yarn, the pure SPF yarn and the blended yarn are of 18tex and 320 twist factor.
This results from the mechanical property of the fibers.
Although the fibers are blended and twisted with each other in forming the yarn, this does not affect or change the facts of the non-matching due to the difference of the mechanical property of the blended fibers.
The tensile property of different yarns is determined.
The pure cotton yarn, the pure SPF yarn and the blended yarn are of 18tex and 320 twist factor.
This results from the mechanical property of the fibers.
Although the fibers are blended and twisted with each other in forming the yarn, this does not affect or change the facts of the non-matching due to the difference of the mechanical property of the blended fibers.
Online since: October 2008
Authors: Guo Sheng Gai, Li Li, Peng Peng, Jian Xia Fu, Xing Dong Lv, Xiao Hua Liu
And the factors
influencing on the mineral concentration such as milling time and solid/liquid mass ratio were
investigated.
Except the property that mineral elements in maifan-stone were soluble, maifan-stone has another property that it can absorb contamination such as heavy metal ions, fluorin ion, residual chlorine and some organic materials in water because its porous structure.
By this property, maifan-stone may be applied to feed, to deodorize in refrigerators, to refresh vegetable and marine lives.
Table 6 The relation of solid-liquid ratio and grain size distribution Table 7 The effect of different solid-liquid ratio on concentration of the representative mineral elements 3.3 The effect of filling quantity of ball mill and grinding media on the extraction of mineral elements.The effect of total filling quantity of the ball mill with different diameter and their proportion was essential in affecting the efficiency of grinding.
The proportional relations of ball mill and total filling quantity of grinding media affected the efficiency of grinding, which related to the extraction of mineral elements.
Except the property that mineral elements in maifan-stone were soluble, maifan-stone has another property that it can absorb contamination such as heavy metal ions, fluorin ion, residual chlorine and some organic materials in water because its porous structure.
By this property, maifan-stone may be applied to feed, to deodorize in refrigerators, to refresh vegetable and marine lives.
Table 6 The relation of solid-liquid ratio and grain size distribution Table 7 The effect of different solid-liquid ratio on concentration of the representative mineral elements 3.3 The effect of filling quantity of ball mill and grinding media on the extraction of mineral elements.The effect of total filling quantity of the ball mill with different diameter and their proportion was essential in affecting the efficiency of grinding.
The proportional relations of ball mill and total filling quantity of grinding media affected the efficiency of grinding, which related to the extraction of mineral elements.
Online since: November 2018
Authors: Vallarasu Manoharan Sounthararajan
The mode of accelerated curing on mechanical properties of the GGBS based concrete for various mixes of concrete was investigated systematically.
Several experimental studies conducted evaluates the hardened concrete strength and strength efficiency factors by replacing the cement by various percentages of slag.
Temperature and water to cement ratio are two important factors that affects the setting time of concrete [3].
“Mechanical Properties and Durability of Polypropylene Fibre Reinforced High-Volume Fly Ash Concrete for Shotcrete applications”, ACI Materials Journal, Vol. 91, No.5, (1994), 478-486
Barnett, Factors influencing the compressive strength of fly ash based geopolymers, Construction and Building Materials, Vol. 110, (2016) 355–368, http://dx.doi.org/10.1016/j.conbuildmat.2015.11.045 [13] Susanto Teng, Tze Yang Darren Lim and Bahador Sabet Divsholi, “Durability and mechanical properties of high strength concrete incorporating ultrafine Ground Granulated Blast-furnace Slag”, Construction and Building Materials, Vol. 40, (2013), 875–881
Several experimental studies conducted evaluates the hardened concrete strength and strength efficiency factors by replacing the cement by various percentages of slag.
Temperature and water to cement ratio are two important factors that affects the setting time of concrete [3].
“Mechanical Properties and Durability of Polypropylene Fibre Reinforced High-Volume Fly Ash Concrete for Shotcrete applications”, ACI Materials Journal, Vol. 91, No.5, (1994), 478-486
Barnett, Factors influencing the compressive strength of fly ash based geopolymers, Construction and Building Materials, Vol. 110, (2016) 355–368, http://dx.doi.org/10.1016/j.conbuildmat.2015.11.045 [13] Susanto Teng, Tze Yang Darren Lim and Bahador Sabet Divsholi, “Durability and mechanical properties of high strength concrete incorporating ultrafine Ground Granulated Blast-furnace Slag”, Construction and Building Materials, Vol. 40, (2013), 875–881
Online since: April 2016
Authors: Malwina Tubielewicz-Michalczuk
Applications of specific properties of various titanium alloys applied in modern technology processes were discussed.
These alloys defined in Japan as Super-TIX-series have special properties, while all the factors, which may cause corrosion cracks, high-temperature corrosion in salts, hydrogen embrittlement, that is all of damages, which titanium alloys with addition of oxygen, nitrogen and iron are exposed to, were eliminated.
Titanium-zinc plates have besides wonderful optical and technical advantages, also the properties of inflammable material that protects against lightning strikes and against electro-smog.
Possibility for using original color and surface protection against getting dirty, starting from factors related to its exploitation show that titanium is an extremely durable material, the surface of which will look the same not only years, but after decades.
Nishimura, Corrosion resistance, medical properties, corrosion fatigue strength and biocompatibility of new Ti alloys V for medical implants, Proc. 9th Word Conf.
These alloys defined in Japan as Super-TIX-series have special properties, while all the factors, which may cause corrosion cracks, high-temperature corrosion in salts, hydrogen embrittlement, that is all of damages, which titanium alloys with addition of oxygen, nitrogen and iron are exposed to, were eliminated.
Titanium-zinc plates have besides wonderful optical and technical advantages, also the properties of inflammable material that protects against lightning strikes and against electro-smog.
Possibility for using original color and surface protection against getting dirty, starting from factors related to its exploitation show that titanium is an extremely durable material, the surface of which will look the same not only years, but after decades.
Nishimura, Corrosion resistance, medical properties, corrosion fatigue strength and biocompatibility of new Ti alloys V for medical implants, Proc. 9th Word Conf.
Online since: April 2014
Authors: Xiao Wei Liu, Chong He, Liang Yin, Wen Jie Fan, Qiu Ye Lv
Generally it is necessary for micromachined accelerometer system to compensate for the phase lag caused by poles of mechanical element and interface itself[1].
Fig. 1 Sensor element equivalent math model It is obvious that sensor element is characterized as 2nd transfer property.
Root locus of 2nd-order ΣΔ micromachined accelerometer shows that eigenvalue of 2nd-order system always exist at left half-plane with different quality factors.
Thus, the system is not sensitive to variation of quality factors.
Figure 3 shows the relationship between SNDR and compensation coefficient in 2nd-order ΣΔ system (quality factor is 0.86).
Fig. 1 Sensor element equivalent math model It is obvious that sensor element is characterized as 2nd transfer property.
Root locus of 2nd-order ΣΔ micromachined accelerometer shows that eigenvalue of 2nd-order system always exist at left half-plane with different quality factors.
Thus, the system is not sensitive to variation of quality factors.
Figure 3 shows the relationship between SNDR and compensation coefficient in 2nd-order ΣΔ system (quality factor is 0.86).
Online since: October 2014
Authors: Shou Xu Song, De Qiao Yu, Hui Cha
It provides important mechanical foundation for further research on the mechanical force desulfurization of material.
Stress-strain curve Material Properties Define The Basic Material Properties Table 1.
Basic parameters of rubber Density Shear modulus Poisson ratio 1.15e3(Kg/m3) 1.3(MPa) 0.47 Construction and Model Parameter Fitting of Constitutive The accurately measure of the mechanical properties of rubber material and construction of constitutive model is an important guarantee for finite element analysis reliability.
Journal of Mechanical Engineering, 2011,57(7-8):622-632
Experimental study on dynamic mechanical properties of fiber reinforced high strength concrete[J].
Stress-strain curve Material Properties Define The Basic Material Properties Table 1.
Basic parameters of rubber Density Shear modulus Poisson ratio 1.15e3(Kg/m3) 1.3(MPa) 0.47 Construction and Model Parameter Fitting of Constitutive The accurately measure of the mechanical properties of rubber material and construction of constitutive model is an important guarantee for finite element analysis reliability.
Journal of Mechanical Engineering, 2011,57(7-8):622-632
Experimental study on dynamic mechanical properties of fiber reinforced high strength concrete[J].
Online since: February 2022
Authors: Zhi Guo Gao
When three welding conditions, including welding configuration, welding speed and laser power, are sequentially altered, supersaturation of liquid aluminum is numerically analyzed to optimize the growth kinetics of dendrite tip with decease of thermo-metallurgical factors for solidification cracking to salvage the weld properties during promising laser welding repair of multicomponent nickel-based single-crystal superalloy.
The material properties of nickel-based superalloy are available in the literature.
The thermo-metallurgical factors morphologically mitigate centerline cracking susceptibility through microstructure refinement to spontaneously salvage single-crystal dendrite growth.
In other words, the consistency among these metallurgical factors nonaxisymmetrically augments microstructure inhomogeneity.
Microstructural evolution and mechanical properties of TLP bonded joints of Mar-M247 superalloys with Ni-Cr-Co-W-Ta-B interlayer.
The material properties of nickel-based superalloy are available in the literature.
The thermo-metallurgical factors morphologically mitigate centerline cracking susceptibility through microstructure refinement to spontaneously salvage single-crystal dendrite growth.
In other words, the consistency among these metallurgical factors nonaxisymmetrically augments microstructure inhomogeneity.
Microstructural evolution and mechanical properties of TLP bonded joints of Mar-M247 superalloys with Ni-Cr-Co-W-Ta-B interlayer.
Online since: August 2021
Authors: Lyubov Morgun, Vladimir Morgun, Denis Votrin, Viktor Nagorskiy
The listed mineral hydrated new formations of cement stone, due to their individual properties, should contribute to the foam concrete operational properties’ improvement.
The physical and mechanical properties of such systems, after the cement binder has been hardened, decisively depend on the rate of its phase transition from a viscous state to an elastic state [4] and a number of other factors [3] because the resulting qualities predetermine important macrostructural features of hardened concrete [5].
Therefore, it is now recognized that an effective method of ensuring the increased structural stability of foam mixtures, which significantly affects the mechanical properties’ value of hardened concrete, is their dispersed reinforcement with synthetic fibers [8,9].
Among the new formations, nanofibrous ones, which have increased hardness and are able to make a positive contribution to the mechanical properties of foam concrete, have appeared.
Nagorskiy, Influence of various forms of aggregate particles on the mechanical properties of foam concrete mixtures, IOP Conference Series: Materials Science and Engineering. 698 (2019) 022088
The physical and mechanical properties of such systems, after the cement binder has been hardened, decisively depend on the rate of its phase transition from a viscous state to an elastic state [4] and a number of other factors [3] because the resulting qualities predetermine important macrostructural features of hardened concrete [5].
Therefore, it is now recognized that an effective method of ensuring the increased structural stability of foam mixtures, which significantly affects the mechanical properties’ value of hardened concrete, is their dispersed reinforcement with synthetic fibers [8,9].
Among the new formations, nanofibrous ones, which have increased hardness and are able to make a positive contribution to the mechanical properties of foam concrete, have appeared.
Nagorskiy, Influence of various forms of aggregate particles on the mechanical properties of foam concrete mixtures, IOP Conference Series: Materials Science and Engineering. 698 (2019) 022088
Online since: July 2015
Authors: Chye Lih Tan, Noorhafiza Muhammad, Azwan Iskandar Azmi
Very often, these properties are difficult to be obtained from single FRP composite and conventional materials.
According to Benardos et.al. [4], surface roughness of drilled FRP composite was influenced by cutting tool properties (tool material and geometry), machining parameters (feed rate and cutting speed), workpiece properties (hardness, lay up sequence) and cutting phenomena (vibration and lubricant).
Their study showed that feed rate and spindle speed are the key factors affecting the surface roughness of drilled parts.
Nevertheless, the interaction factors were found to be insignificant.
From this, it is statistically proved that feed rate is the major factor affecting surface roughness in drilling CGCG hybrid composite followed by tool geometry and spindle speed.
According to Benardos et.al. [4], surface roughness of drilled FRP composite was influenced by cutting tool properties (tool material and geometry), machining parameters (feed rate and cutting speed), workpiece properties (hardness, lay up sequence) and cutting phenomena (vibration and lubricant).
Their study showed that feed rate and spindle speed are the key factors affecting the surface roughness of drilled parts.
Nevertheless, the interaction factors were found to be insignificant.
From this, it is statistically proved that feed rate is the major factor affecting surface roughness in drilling CGCG hybrid composite followed by tool geometry and spindle speed.