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Online since: September 2017
Authors: Luc Courard, Willy Hermann Juimo Tchamdjou, Sophie Grigoletto, Frédéric Michel, Toufik Cherradi, Moulay Larbi Abidi
The correlation between mechanical strengths and physical properties of NPs has been established.
Mechanical properties of mortars and physical properties of NPs.
Physical properties of Natural Pozzolans.
Properties of fresh mortars.
However, it is clean that additional factors including the type of natural pozzolan, composition and strength of cement and w/b ratio may also be effective on the mechanical properties of mortar.
Mechanical properties of mortars and physical properties of NPs.
Physical properties of Natural Pozzolans.
Properties of fresh mortars.
However, it is clean that additional factors including the type of natural pozzolan, composition and strength of cement and w/b ratio may also be effective on the mechanical properties of mortar.
Online since: November 2025
Authors: Ahmed Rahman Khudadad, Safaa Kadhim Ghazi, Mostafa Adel Abdullah, Mudhar A. Al-Obaidi, Rasool R.K. Al-Arkawazi
Also, the material properties and the operational conditions during the forming process can affect the springback phenomena [6].
Previous studies revealed the impact of the influential factors on the springback phenomenon.
Accordingly, one may argue that the current study would offer insightful information on how various factors affect springback and suggest different approaches to reduce springback and improve dimensional accuracy during the sheet metal forming process. 2.
The mechanical properties of a material including the yield stress and elastic modulus have a significant contribution in signifying the amount of springback after bending.
Estimate Zinc-Oxide particles on PMMA mechanical properties.
Previous studies revealed the impact of the influential factors on the springback phenomenon.
Accordingly, one may argue that the current study would offer insightful information on how various factors affect springback and suggest different approaches to reduce springback and improve dimensional accuracy during the sheet metal forming process. 2.
The mechanical properties of a material including the yield stress and elastic modulus have a significant contribution in signifying the amount of springback after bending.
Estimate Zinc-Oxide particles on PMMA mechanical properties.
Online since: May 2007
Authors: Min Woo Park, Chong Mu Lee, Jae Gab Lee, Wang Woo Lee
A Comparison of the Mechanical Properties
of RF- and DC- sputter-deposited Cr Thin Films
Minwoo Parka,d
, Wangwoo Lee
a
, J.
Effects of DC or RF sputtering power on the deposition rate and properties such as hardness and surface roughness of the Cr films were investigated.
Results and Discussion The important factors in developing a sputtering technique as an alternative to electroplating are to increase deposition rate.
Hence, it should be a good strategy to increase the upper limit of the sputtering power to as high as possible when assembling a sputtering system and to use a power as high as possible within the hardware limit of the sputtering system when depositing a Cr film without harming the physical and mechanical properties of the film such as hardness, surface roughness and corrosion-resistance.
According to Paturaud et al's report[7], the hardness of the Cr film is proportional to the film deposition rate and the most important process parameter affecting the deposition rate is sputtering power.
Effects of DC or RF sputtering power on the deposition rate and properties such as hardness and surface roughness of the Cr films were investigated.
Results and Discussion The important factors in developing a sputtering technique as an alternative to electroplating are to increase deposition rate.
Hence, it should be a good strategy to increase the upper limit of the sputtering power to as high as possible when assembling a sputtering system and to use a power as high as possible within the hardware limit of the sputtering system when depositing a Cr film without harming the physical and mechanical properties of the film such as hardness, surface roughness and corrosion-resistance.
According to Paturaud et al's report[7], the hardness of the Cr film is proportional to the film deposition rate and the most important process parameter affecting the deposition rate is sputtering power.
Online since: February 2007
Authors: Jien Jong Chen, Yan Shin Shih
A detailed
survey of parameters affecting the FCG rate of austenitic stainless steel is available [3].
Mechanical Properties Associated with Temperature and Strain Rate The mechanical behaviors of material have significantly affected by temperature and strain rate.
Experimental results from Steichen [9] and Marschall et. al.[10] are available for studying the effect of strain rate on mechanical properties of 304SS.
Conclusions Numerical regression analysis has been carried out to investigate the effect of loading frequency and temperature on fatigue crack growth rate for 304SS by employing the mechanical properties of material.
The mechanical properties of material were used to characterize the influences of loading frequency and/or temperature on FCG rate.
Mechanical Properties Associated with Temperature and Strain Rate The mechanical behaviors of material have significantly affected by temperature and strain rate.
Experimental results from Steichen [9] and Marschall et. al.[10] are available for studying the effect of strain rate on mechanical properties of 304SS.
Conclusions Numerical regression analysis has been carried out to investigate the effect of loading frequency and temperature on fatigue crack growth rate for 304SS by employing the mechanical properties of material.
The mechanical properties of material were used to characterize the influences of loading frequency and/or temperature on FCG rate.
Online since: November 2012
Authors: Joaquim Barbosa, Carlos Silva Ribeiro, Ana M.P. Pinto, Hélder Puga, Sónia Costa
However, improvement of mechanical properties is a constant in research activities, either by the development of new alloys or by microstructure manipulation.
Eutectic Si modification is crucial to achieve high mechanical properties, and is considered much more important than grain refinement itself [5].
Basavakumar et al., Influence of grain refinement and modification on microstructure and mechanical properties of Al-7Si and Al-7Si-2.5Cu cast alloys.
García-Hinojosa et al., Structure and properties of Al-7Si-Ni and Al-7Si-Cu cast alloys non-modified and modified with Sr.
Puga et al., Influence of Ultrasonic Melt Treatment on Microstructure and Mechanical Properties of AlSi9Cu3 alloy.
Eutectic Si modification is crucial to achieve high mechanical properties, and is considered much more important than grain refinement itself [5].
Basavakumar et al., Influence of grain refinement and modification on microstructure and mechanical properties of Al-7Si and Al-7Si-2.5Cu cast alloys.
García-Hinojosa et al., Structure and properties of Al-7Si-Ni and Al-7Si-Cu cast alloys non-modified and modified with Sr.
Puga et al., Influence of Ultrasonic Melt Treatment on Microstructure and Mechanical Properties of AlSi9Cu3 alloy.
Glutardialdehyde Modified Corn Starch – Urea Formaldehyde Resin as a Binder for Particleboard Making
Online since: April 2015
Authors: Mohd Sukhairi Mat Rasat, M. Mohamed, S. Hiziroglu, Othman Sulaiman, R. Hashim, N.S. Sulaiman, Mohd Hazim Mohamad Amini
Panels were manufactured using 13% corn starch modified with glutardialdehyde with addition of 2 % urea formaldehyde resin and tested for their physical and mechanical properties.
The mechanical properties were comparable to those made using 15 % urea formaldehyde resin with reduction of formaldehyde fume was over 50 %.
However to successfully achieve that, even very little reduction of adhesive in the panels can significantly influence both physical and mechanical properties of the final product.
Researchers had tried to find the ways to reduce the emission by studying the factors that affecting the fume release such as resin type, degree of condensation, the moisture content of the wood particles before pressing, wood species, the type and amount of hardener, the type and amount of additives, press conditions and conditioning after particleboard making process [4].
properties and formaldehyde release Table 2 showed the mechanical properties of manufactured particleboards.
The mechanical properties were comparable to those made using 15 % urea formaldehyde resin with reduction of formaldehyde fume was over 50 %.
However to successfully achieve that, even very little reduction of adhesive in the panels can significantly influence both physical and mechanical properties of the final product.
Researchers had tried to find the ways to reduce the emission by studying the factors that affecting the fume release such as resin type, degree of condensation, the moisture content of the wood particles before pressing, wood species, the type and amount of hardener, the type and amount of additives, press conditions and conditioning after particleboard making process [4].
properties and formaldehyde release Table 2 showed the mechanical properties of manufactured particleboards.
Online since: March 2020
Authors: Mohamed Ramadan, A.S. Alghamdi, B. Ayadi, W. Rajhi
Influence of Tinning Material on Interfacial Microstructures and Mechanical Properties of Al12Sn4Si1Cu /Carbon Steel Bimetallic Castings for Bearing Applications
M.
Previous researchers [1, 7, 9-10] have investigated factors that affect the bond strength in liquid-solid compound casting using the galvanizing, aluminizing and tinning processes on surface of solid steel or cast iron substrates.
Cooling rate of poured liquid, temperature of the solid substrate before pouring, the pouring rate and temperature of the poured liquid, the cleaning method of the solid substrate, as well as the tinning procedure (bath composition, temperature, soak time, etc.) are the most common factors affecting the bond strength of fabricated bimetallic castings.
In current research work three different tinning metallic materials are used to understand how these materials affect the quality of the interfacial microstructures , mechanical properties and metallic bond of Al-Sn-Si-Cu /carbon steel bimetallic castings for bearing applications.
Zhang, Microstructures and mechanical properties of AZ91D/0Cr19Ni9 bimetal composite prepared by liquid−solid compound casting, Trans.
Previous researchers [1, 7, 9-10] have investigated factors that affect the bond strength in liquid-solid compound casting using the galvanizing, aluminizing and tinning processes on surface of solid steel or cast iron substrates.
Cooling rate of poured liquid, temperature of the solid substrate before pouring, the pouring rate and temperature of the poured liquid, the cleaning method of the solid substrate, as well as the tinning procedure (bath composition, temperature, soak time, etc.) are the most common factors affecting the bond strength of fabricated bimetallic castings.
In current research work three different tinning metallic materials are used to understand how these materials affect the quality of the interfacial microstructures , mechanical properties and metallic bond of Al-Sn-Si-Cu /carbon steel bimetallic castings for bearing applications.
Zhang, Microstructures and mechanical properties of AZ91D/0Cr19Ni9 bimetal composite prepared by liquid−solid compound casting, Trans.
Online since: March 2007
Authors: Shi Hua Tzeng, Jia Lin Tsai
In order to improve mechanical property,
spherical particles have been used as reinforcements in polymeric materials for many decades.
Several researchers investigating the particle size effect on the composites indicated that the mechanical responses of the composites could be affected by the particulate sizes.
Among the studies, some results demonstrated that the mechanical properties of the composites increase as the particle sizes decreases [1, 2].
Jordan et al. [5] reviewed the issue of particulate size effect and pointed out that the improvements in mechanical properties of composites are influenced by a set of factors including nano-particle size, shape, volume fraction, degree of dispersion, characteristics of polymer matrix and interactions between the filler and the matrix.
The effects of the particle size on the mechanical properties, such as stiffness, strength and fracture toughness, were determined from various experimental approaches.
Several researchers investigating the particle size effect on the composites indicated that the mechanical responses of the composites could be affected by the particulate sizes.
Among the studies, some results demonstrated that the mechanical properties of the composites increase as the particle sizes decreases [1, 2].
Jordan et al. [5] reviewed the issue of particulate size effect and pointed out that the improvements in mechanical properties of composites are influenced by a set of factors including nano-particle size, shape, volume fraction, degree of dispersion, characteristics of polymer matrix and interactions between the filler and the matrix.
The effects of the particle size on the mechanical properties, such as stiffness, strength and fracture toughness, were determined from various experimental approaches.
Online since: October 2010
Authors: Liang Yun Lan, Chun Lin Qiu, De Wen Zhao
Under the condition of welding thermal cycles these microstructures always happen to complex phase transformation and result in mechanism properties sharply varied at different parts of heat affected zone (HAZ).
This information will help to further understand the failure mechanism of the welded joints and properties variation in HAZ.
The main mechanical properties of as-rolled steel are as follows: yield strength 645MPa, tensile strength 760MPa, and impact absorbed energy (-20℃) 161J.
Schematic diagram of Charpy V notch position In order to facilitate analysis of the HAZ microstructure and mechanical properties, A V-type joint design was considered and four-passes welding procedure was conducted to generate a relatively large HAZ section.
The Eq. (1) can be expressed as a following form: , (1) Where the coefficient K is a constant, A contains metallurgical factors.
This information will help to further understand the failure mechanism of the welded joints and properties variation in HAZ.
The main mechanical properties of as-rolled steel are as follows: yield strength 645MPa, tensile strength 760MPa, and impact absorbed energy (-20℃) 161J.
Schematic diagram of Charpy V notch position In order to facilitate analysis of the HAZ microstructure and mechanical properties, A V-type joint design was considered and four-passes welding procedure was conducted to generate a relatively large HAZ section.
The Eq. (1) can be expressed as a following form: , (1) Where the coefficient K is a constant, A contains metallurgical factors.
Online since: February 2012
Authors: R. Malathy, P.M. Shanmugavadivu
The physical properties of aggregate play an important role in elastic and shrinkage properties of concrete and mortar.
It is well known that properties of aggregate strongly affect the mechanical and durability properties of concrete.
The shape and texture of aggregates affects the fresh and hardened properties of concrete.
The minerals present in the aggregate affect the strength and durability properties of concrete.
The shrinkage behaviour mainly depends upon the following factors: modulus of elasticity, particle shape, grading, maximum size of aggregate and clay minerals.
It is well known that properties of aggregate strongly affect the mechanical and durability properties of concrete.
The shape and texture of aggregates affects the fresh and hardened properties of concrete.
The minerals present in the aggregate affect the strength and durability properties of concrete.
The shrinkage behaviour mainly depends upon the following factors: modulus of elasticity, particle shape, grading, maximum size of aggregate and clay minerals.