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Online since: January 2026
Authors: Ojo Sunday Isaac Fayomi, Sunday Olayinka Oyedepo, Jesubori W. Sojobi, Ashley I. Echegile, Oluwatomilope G. Jimoh
Considering both factors, PLA was the most suitable material.
Table 1 shows the mechanical properties of the materials.
Table 1 presents a summary of the mechanical properties of PLA, PMMA, PET, PVC and titanium.
Mechanical Properties of the five materials.
The factors in both conditions are presented in Table 7.
Table 1 shows the mechanical properties of the materials.
Table 1 presents a summary of the mechanical properties of PLA, PMMA, PET, PVC and titanium.
Mechanical Properties of the five materials.
The factors in both conditions are presented in Table 7.
Online since: August 2020
Authors: Mona G. Ibrahim, Alaa A. Ibrahim, Hassan E.S. Fath
Flow pattern in falling film on a horizontal tube bundle. [3]
Thickness of liquid falling films around horizontal tubes is influenced by several parameters including: tube diameter, intertube spacing, circumferential angle, tube location, film flow rate, film feeding system, tube wall temperature, operating pressure, and falling liquid properties, [4].
The results showed that the main factors influenced the distribution characteristics of the film's thickness are; i- circumferential angle, ii- intertube spacing and iii- the film's Reynolds number, [12].
Properties of the working fluid (water) at ambient temperature.
To validate the present numerical results, the thickness of steady falling liquid film around the second tube is computationally measured at circumferential angle range from 15⁰ to 165⁰ with intertube spacing of 10 mm, 16 mm, 33 mm and 40 mm and with constant value for flow rate (Reynolds number of 574), ambient conditions and constatnt fluid properties.
Liquid flow rate (Re) is one of the influenced paramters that affect the distribution of film thickness around the tubes in evaporators.
The results showed that the main factors influenced the distribution characteristics of the film's thickness are; i- circumferential angle, ii- intertube spacing and iii- the film's Reynolds number, [12].
Properties of the working fluid (water) at ambient temperature.
To validate the present numerical results, the thickness of steady falling liquid film around the second tube is computationally measured at circumferential angle range from 15⁰ to 165⁰ with intertube spacing of 10 mm, 16 mm, 33 mm and 40 mm and with constant value for flow rate (Reynolds number of 574), ambient conditions and constatnt fluid properties.
Liquid flow rate (Re) is one of the influenced paramters that affect the distribution of film thickness around the tubes in evaporators.
Online since: May 2019
Authors: Viktoria Alekseevna Semenyutina, Igor Yuryevich Podkovyrov, Galina Vladimirovna Podkovyrova, Alexandra Viktorovna Semenyutina
The basic physical and mechanical properties are investigated and the optimal compositions of fine concrete are developed.
Table 2 presents the properties of Portland cement by mechanical stirring it with a crushed ash-slag mixture.
The reasons for the change in the strength of these cements are due to the same factors as that of cements using hydro-removal ash.
Applying the correction factors ASTM 42-57 or BS 1881 : 1952, it is possible to recalculate the strength that would be obtained at h/d=2.
Physical and mechanical properties of activated cement-ash binders [Text] / L.
Table 2 presents the properties of Portland cement by mechanical stirring it with a crushed ash-slag mixture.
The reasons for the change in the strength of these cements are due to the same factors as that of cements using hydro-removal ash.
Applying the correction factors ASTM 42-57 or BS 1881 : 1952, it is possible to recalculate the strength that would be obtained at h/d=2.
Physical and mechanical properties of activated cement-ash binders [Text] / L.
Online since: February 2007
Authors: Xue Min Cui, Shi Xi Ouyang, Yong Huang, Ji Zhou, Chang An Wang
This paper studied on the rheological behaviors of
the suspensions and drying process of aqueous slurries with latex binder system, and the research
results indicated the rheological behaviors was affected by pH value, solid loading and dispersant
(PAA-NH4) additives; and the drying speed of slurries was most decided by drying temperature and
slurry coating thickness.
Mass Dist.(%) Diameter(µm) 2 3 4 5 6 7 8 9 10 11 -40 -35 -30 -25 -20 (b) pure latex solution Zeta Potensial£¨mv£© pH Fig.1 (a) Distribution of alumina powder diameter and (b) Zeta potential of emulsion binder mechanical properties and lamination behaviors.
The result showed that the pH value would greatly affect the zeta potential and dispersive effects of dispersant.
In a word, the main experimental factors which influenced the stability of the slurry, were the properties of dispersant and pH value.
The PAA-NH4 was an effective dispersant to slurry of latex binder, and the main experimental factors which influenced the stability of the slurry, were the properties of dispersant and pH value.The research results showed the glass transition temperature of latex ( Tg ) was also importance to form film.
Mass Dist.(%) Diameter(µm) 2 3 4 5 6 7 8 9 10 11 -40 -35 -30 -25 -20 (b) pure latex solution Zeta Potensial£¨mv£© pH Fig.1 (a) Distribution of alumina powder diameter and (b) Zeta potential of emulsion binder mechanical properties and lamination behaviors.
The result showed that the pH value would greatly affect the zeta potential and dispersive effects of dispersant.
In a word, the main experimental factors which influenced the stability of the slurry, were the properties of dispersant and pH value.
The PAA-NH4 was an effective dispersant to slurry of latex binder, and the main experimental factors which influenced the stability of the slurry, were the properties of dispersant and pH value.The research results showed the glass transition temperature of latex ( Tg ) was also importance to form film.
Online since: November 2021
Authors: Przemysław Snopiński
Mechanical properties of the ECAP processed samples were compared based on hardness measurement.
There are many studies focused on the enhancement of mechanical properties of the Al-Mg alloys [5] [6] [7] [8] [9].
The study focuses on the effect of the number of ECAP passes and ECAP die on the microstructure evolution and mechanical properties.
Jafarian, Microstructure and mechanical properties variations of pure aluminum subjected to one pass of ECAP-Conform process, Mater.
Horita, Plastic flow, structure and mechanical properties in pure Al deformed by twist extrusion, Mater.
There are many studies focused on the enhancement of mechanical properties of the Al-Mg alloys [5] [6] [7] [8] [9].
The study focuses on the effect of the number of ECAP passes and ECAP die on the microstructure evolution and mechanical properties.
Jafarian, Microstructure and mechanical properties variations of pure aluminum subjected to one pass of ECAP-Conform process, Mater.
Horita, Plastic flow, structure and mechanical properties in pure Al deformed by twist extrusion, Mater.
Online since: June 2012
Authors: Zhong Hua Du, Xiao Jun Ye, Jun Chen, Ying Jun Cao
Simulation and Experiment for the Ogive Affecting PELE Broken Finite-Thickness Reinforced Concrete Targets
Xiao-jun YE1,a, Zhong-hua Du2,b, Jun Chen1,c, Ying-Jun Cao3
1New Star Research Inistitute of Applied Technology, Hefei, 230031, P.
China; 2 School of Mechanical Engineering, NJUST, Nanjing, 210094, P.
Now, the research about PELE mainly focuses on the penetration of thin metal target and its influence factors [1]-[4], and it remains an active research field in PELE broken thin finite-thickness RC targets RC is a widely kind of protective structural material.
The break of concrete material is a very complex problem, it is closely related to the RC material properties, different form the penetration of metal plate.
We use Lagrange arithmetic in the numerical simulations. it can describe the mechanical dynamic behavior of PELE broken RC, and the calculation of the stability.
China; 2 School of Mechanical Engineering, NJUST, Nanjing, 210094, P.
Now, the research about PELE mainly focuses on the penetration of thin metal target and its influence factors [1]-[4], and it remains an active research field in PELE broken thin finite-thickness RC targets RC is a widely kind of protective structural material.
The break of concrete material is a very complex problem, it is closely related to the RC material properties, different form the penetration of metal plate.
We use Lagrange arithmetic in the numerical simulations. it can describe the mechanical dynamic behavior of PELE broken RC, and the calculation of the stability.
Online since: June 2021
Authors: Chun Feng, Li Juan Zhu, Wen Wen Song, Fang Fang Zhang
Presently, the in-situ generation method is widely used, because it can react with the substrate greatly
In the laser cladding process, many factors can affect the properties of wear resistant cladding layer.
These factors will affect the macroscopic surface quality (such as pores and crack), thickness and surface hardness distribution of cladding layer [5].
The content, distribution and morphology of reinforcing phases also significantly affect the coating properties.
When the added amount of Si was 20%wt%, the coating had excellent comprehensive mechanical properties and anti-oxidant properties.
Microstructures and mechanical properties of wear-resistant titanium oxide coatings deposited on Ti-6Al-4V alloy using laser cladding, J.
These factors will affect the macroscopic surface quality (such as pores and crack), thickness and surface hardness distribution of cladding layer [5].
The content, distribution and morphology of reinforcing phases also significantly affect the coating properties.
When the added amount of Si was 20%wt%, the coating had excellent comprehensive mechanical properties and anti-oxidant properties.
Microstructures and mechanical properties of wear-resistant titanium oxide coatings deposited on Ti-6Al-4V alloy using laser cladding, J.
Online since: June 2015
Authors: R. Kumar, M. Balasubramanian
Ti-6Al-4V and stainless steel 304L rods are fixed in the friction welding machine and prepared the joints by variable factors (Table 2).Most of the joints are failure (90%) and some joints passed in drop test (10%).
Satyanarayana, Influence Of Welding Processes on Microstructure and Mechanical Properties of Dissimilar Austenitic-Ferritic Stainless Steel Welds.
Sathiya , Evaluation of Mechanical and Metallurgical Properties of Dissimilar Materials by Friction Welding.Procedia Engineering 2013, 64,1514
Ma ,Effect of ball-milling time on Mechanical properties of carbon nanotubes reinforced aluminum matrix composites.
Saatchi, T.H.North ,Influence of Ni Interlayer on the Mechanical Properties of Ti6Al4V/ (WC-Co) Friction Weld.
Satyanarayana, Influence Of Welding Processes on Microstructure and Mechanical Properties of Dissimilar Austenitic-Ferritic Stainless Steel Welds.
Sathiya , Evaluation of Mechanical and Metallurgical Properties of Dissimilar Materials by Friction Welding.Procedia Engineering 2013, 64,1514
Ma ,Effect of ball-milling time on Mechanical properties of carbon nanotubes reinforced aluminum matrix composites.
Saatchi, T.H.North ,Influence of Ni Interlayer on the Mechanical Properties of Ti6Al4V/ (WC-Co) Friction Weld.
Online since: January 2008
Authors: Bong Ki Ryu, Young Joon Jung, Tae Ho Kim, Kyu Ho Lee, H. J. Chin, Young Seok Kim
Transparent materials containing
nano-sized crystals inside the amorphous matrix have a good suitability to host glass for rare-earth
ions by providing low phonon energy environment for rare-earth ions [4], as well as good chemical
and mechanical properties [5].
In this work, we have investigated the up-conversion luminescence properties of Li2O3-14.7Al2O3-58.1SiO2- 16.7B2O3 glass doped Sm 3+ ions by heat treatment for generating nano-sized crystals.
Glasses thermal properties were analyzed by Differential Thermal Analyzer (DTA), Thermal Mechanical Analyzer (TMA) (Shimadzu TMA-60).
Table 1 Thermal Properties of 10.5Li2O-14.7Al2O3-58.1SiO2-16.7B2O3 (wt %) Glass.
As well known, there are so many factors to make the up-conversion of emission intensiy.
In this work, we have investigated the up-conversion luminescence properties of Li2O3-14.7Al2O3-58.1SiO2- 16.7B2O3 glass doped Sm 3+ ions by heat treatment for generating nano-sized crystals.
Glasses thermal properties were analyzed by Differential Thermal Analyzer (DTA), Thermal Mechanical Analyzer (TMA) (Shimadzu TMA-60).
Table 1 Thermal Properties of 10.5Li2O-14.7Al2O3-58.1SiO2-16.7B2O3 (wt %) Glass.
As well known, there are so many factors to make the up-conversion of emission intensiy.
Online since: May 2011
Authors: Zhuo Wang, Li Feng Hou, Ying Hui Wei, Zhi Yong You
Studies on microstructure and property of material of SiCp/Gr/ mixed and reinforced aluminum-based composites prepared by semi-solid pouring method
Zhiyong You a, Zhuo Wang b , Lifeng Hou cand Ying-hui Wei d
Taiyuan University of Technology, College of Materials Science and Engineering, Taiyuan, Shanxi, 030024, China
ayouzhiy1486@163.com, bwangzhuo19860531@163.com, choulifeng78@126.com,dweiyinghui@tyut.edu.cn
Keywords: SiCp, Graphite, Aluminum-based composites, mechanical property, damping capacity
Abstract.
In addition to the low prices of both SiCp and Gr, the relative high intrinsic damping of Gr particle in the composites can improve its damping capacity and SiCp can enhance its tensile strength and damping capacity, thus the adoption of SiCp/Gr mixed and reinforced aluminum-based composites can improve its mechanical properties and damping capacity at the same time[5-7].
Many documents have stated that the method can affect the growth of dentrite adversely and has reinforced particle uniformly distributed in the alloy melt[9], therefore, the experiment adopted the semi-solid stirring and gravity pouring method and aimed at preparing reinforced aluminum-based granular composites with excellent mechanical properties and damping capacity.
The author suggests that dislocation damping and interfacial damping are the most important factors as for the composites.
Metal Matrix Composites: Mechanisms and Properties.
In addition to the low prices of both SiCp and Gr, the relative high intrinsic damping of Gr particle in the composites can improve its damping capacity and SiCp can enhance its tensile strength and damping capacity, thus the adoption of SiCp/Gr mixed and reinforced aluminum-based composites can improve its mechanical properties and damping capacity at the same time[5-7].
Many documents have stated that the method can affect the growth of dentrite adversely and has reinforced particle uniformly distributed in the alloy melt[9], therefore, the experiment adopted the semi-solid stirring and gravity pouring method and aimed at preparing reinforced aluminum-based granular composites with excellent mechanical properties and damping capacity.
The author suggests that dislocation damping and interfacial damping are the most important factors as for the composites.
Metal Matrix Composites: Mechanisms and Properties.