Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2012
Authors: Carlos Maurício Fontes Vieira, Sérgio Neves Monteiro
Technological properties such as water absorption, linear shrinkage and flexural strength were also evaluated.
Another important factor, which may significantly affect the properties and microstructure of ceramic tiles, is the processing technique.
Then, the firing condition will be the only established procedure, which makes the product to attend the desired technological properties and be easily processed with the lowest possible cost.
The fired technological properties evaluated were: water absorption, linear shrinkage and flexural strength.
To reach the required values for the technological properties, one should reformulate the body composition increasing the flux content and decreasing the loss on ignition.
Another important factor, which may significantly affect the properties and microstructure of ceramic tiles, is the processing technique.
Then, the firing condition will be the only established procedure, which makes the product to attend the desired technological properties and be easily processed with the lowest possible cost.
The fired technological properties evaluated were: water absorption, linear shrinkage and flexural strength.
To reach the required values for the technological properties, one should reformulate the body composition increasing the flux content and decreasing the loss on ignition.
Online since: September 2008
Authors: Matthew E. Ibrahim, Christine M. Scala
The improvement of material properties
coupled with prevention of attack by environmental degradants would significantly improve both of
these factors.
Smart Sensing The ability to monitor the state and health of materials, particularly those used in stress-bearing members, is of the utmost importance in Defence applications where the mechanical properties of structural components are exploited to maximise operational efficiencies.
Material degradation rates as a function of each of the determining factors can subsequently be determined.
Significant progress has been made in the development of advanced materials using novel nano-concepts to address materials degradation issues affecting Defence asset availability and overall cost of ownership.
Tsoi, Monitoring the Structural Health of Mechanical Components Australian Provisional Patent, Appl.
Smart Sensing The ability to monitor the state and health of materials, particularly those used in stress-bearing members, is of the utmost importance in Defence applications where the mechanical properties of structural components are exploited to maximise operational efficiencies.
Material degradation rates as a function of each of the determining factors can subsequently be determined.
Significant progress has been made in the development of advanced materials using novel nano-concepts to address materials degradation issues affecting Defence asset availability and overall cost of ownership.
Tsoi, Monitoring the Structural Health of Mechanical Components Australian Provisional Patent, Appl.
Online since: August 2011
Authors: Li Yang, Ying Huai Qiang, Fu Shan Chen, Yang Gao, Yun Tian Zhong
Effect of Working Current on Microstructure and Properties of Cylinder Hardened by Plasma Beam at Junction of the Hardening Traces
Li Yang1,2,a,Yinghuai Qiang1,b,Fushan Chen2,a,Yang Gao2,a and Yuntian Zhong 2,a
1School of Materials Science & Engineering China University of Mining and Technology Xuzhou China 221116
2Mechanical and Electronic Engineering Department Xuzhou Institute of Technology Xuzhou, China 221008
a linlideyu@126.com,b yhqiang@cumt.edu.cn
Keywords: Cylinder; working current; plasma beam; junction; properties
Abstract.
After the treatment, phase transformation or micromelted-solidified modification can be obtained on the surface of part and its mechanical properties increase largely [1 ~ 4].
The chemical composition, microstructure and properties of boron cast iron Boron cast iron is melted in cupola and the pouring temperature is between 1470℃ and 1480 ℃ .After the inoculation with 75SiFe, the specimens of 95-cylinder are poured with horizontal centrifugal casting.
The analysis and calculation uses G factors, and the sum of martensitic phase content and the retained austenite phase content is thought as 100%.
Hardening holding time is an important factor which affects surface hardness and depth of quench structure.
After the treatment, phase transformation or micromelted-solidified modification can be obtained on the surface of part and its mechanical properties increase largely [1 ~ 4].
The chemical composition, microstructure and properties of boron cast iron Boron cast iron is melted in cupola and the pouring temperature is between 1470℃ and 1480 ℃ .After the inoculation with 75SiFe, the specimens of 95-cylinder are poured with horizontal centrifugal casting.
The analysis and calculation uses G factors, and the sum of martensitic phase content and the retained austenite phase content is thought as 100%.
Hardening holding time is an important factor which affects surface hardness and depth of quench structure.
Online since: November 2012
Authors: Diego Carou, Adolfo J. Saá, María Villeta, Eva María Rubio
In this approach, experiments with the factors that are considered to be the most important are conducted to investigate the effect of each factor as well as the influencing mechanism on the surface roughness generation.
Taguchi method provides a considerable reduction of time and resources to determine the key factors that affect operations, achieving simultaneous improvement of quality and cost of manufacturing [51].
This work was focused on identify the main factors that influence a dry turning operation, and select the optimal manufacturing conditions that result in minimum surface roughness.
Most of them can be summarized in four main categories: machining parameters, cutting tool properties, workpiece properties and cutting phenomena (Fig.1).
The main utility and novelty of this work is that provides a guide, in form of tables and list of reference, for relating machining parameters, cutting tool properties, workpiece properties and cutting phenomena with the different techniques and optimization tools usually employed in predicting the surface roughness.
Taguchi method provides a considerable reduction of time and resources to determine the key factors that affect operations, achieving simultaneous improvement of quality and cost of manufacturing [51].
This work was focused on identify the main factors that influence a dry turning operation, and select the optimal manufacturing conditions that result in minimum surface roughness.
Most of them can be summarized in four main categories: machining parameters, cutting tool properties, workpiece properties and cutting phenomena (Fig.1).
The main utility and novelty of this work is that provides a guide, in form of tables and list of reference, for relating machining parameters, cutting tool properties, workpiece properties and cutting phenomena with the different techniques and optimization tools usually employed in predicting the surface roughness.
Online since: July 2016
Authors: Norinsan Kamil Othman, Shahrum Abdullah, Azman Jalar, Muhammad Nubli Zulkifli
This is because the capillary geometry affects the force vectors acting on the free air ball (FAB) and the compression of Au ball bonds, which consequently will produces different value of micromechanical properties across the Au ball bonds.
Tan, “Study of factors affecting the hardness of ball bonds in copper wire bonding,” Microelectron.
Pharr, “Measurement of mechanical properties by ultra-low load indentation,” Mater.
Soboyejo, “Nanoindentation measurements of the mechanical properties of polycrystalline Au and Ag thin films on silicon substrates: Effects of grain size and film thickness,” Mater.
Hong, “Relationship between mechanical properties and microstructure of ultra-fine gold bonding wires,” Mech.
Tan, “Study of factors affecting the hardness of ball bonds in copper wire bonding,” Microelectron.
Pharr, “Measurement of mechanical properties by ultra-low load indentation,” Mater.
Soboyejo, “Nanoindentation measurements of the mechanical properties of polycrystalline Au and Ag thin films on silicon substrates: Effects of grain size and film thickness,” Mater.
Hong, “Relationship between mechanical properties and microstructure of ultra-fine gold bonding wires,” Mech.
Online since: May 2011
Authors: Wu Yi Chen, Yue Feng Yuan, Wen Ying Zhang
There are two important factors affecting the application of titanium alloys.
Therefore, success in the cutting (such as turning, milling, drilling and so on.) of titanium alloys depends largely on the overcoming of the principal problems of tool wear associated with the inherent properties of these materials, as discussed below[1, 2, 3, 4] : (1) The compressive stresses on the delicate cutting edge are very high because of a much smaller contact area on the rake face of the tool than when cutting most engineering metals
It consisted of nine tests with there different variable factors and three different experimental condition levels.
Influence of factors on tool life.
Fig. 3 Relation between tool life and cutting speed Fig. 4 Relation between tool life and feed rate Fig. 5 Relation between tool life and depth of cut According to Fig. 3, 4 and 5, all cutting parameters discussed had great influence on tool life, and when these factors increased, the tool life reduced quickly.
Therefore, success in the cutting (such as turning, milling, drilling and so on.) of titanium alloys depends largely on the overcoming of the principal problems of tool wear associated with the inherent properties of these materials, as discussed below[1, 2, 3, 4] : (1) The compressive stresses on the delicate cutting edge are very high because of a much smaller contact area on the rake face of the tool than when cutting most engineering metals
It consisted of nine tests with there different variable factors and three different experimental condition levels.
Influence of factors on tool life.
Fig. 3 Relation between tool life and cutting speed Fig. 4 Relation between tool life and feed rate Fig. 5 Relation between tool life and depth of cut According to Fig. 3, 4 and 5, all cutting parameters discussed had great influence on tool life, and when these factors increased, the tool life reduced quickly.
Online since: June 2014
Authors: Yong Feng, Yu Bin Pei
Li Yonghong for EPS silt mixed lightweight formula and its physical and mechanical properties of soil has carried on the preliminary discussion, studies have shown that the strength of the main influencing factors of cement content, foam particles adding amount, and the pattern of the deformation and failure of the specimen and EPS content mainly about.Cement mixing ratio and EPS content and age were studied on its permeability characteristics, and set up the experience formula of the permeability coefficient and consolidation pressure by Zhu Yunhua.
Jiang jian, zhang min and luo comrades explored by orthogonal test of lightweight soil physical and mechanical index analysis of the main factors influencing on lightweight soil cement content and water content on the unconfined compressive strength of the relationship between the parameters of the regression analysis.
Throughout the lightweight soil, especially the project involved in the research status of EPS silt mixing light-weight soil as you can see, the current domestic and foreign research focused on the formula ratio and macro physical and mechanical properties of the research, and the microstructure characteristics of poorly understood.
So to carry out the EPS of silt mixing light-weight soil microstructure changes of research, to explore the mechanism of deformation and deformation law, establish its microscopic structure and the relationship between the macroscopic deformation properties is essential.
The final purpose of study is for EPS silt mixed lightweight soil engineering application provides reasonable geotechnical parameters, for the selection, preparation has a clear service engineering properties of EPS silt mixing light-weight soil, can be widely applied to facilitate the green technology.
Jiang jian, zhang min and luo comrades explored by orthogonal test of lightweight soil physical and mechanical index analysis of the main factors influencing on lightweight soil cement content and water content on the unconfined compressive strength of the relationship between the parameters of the regression analysis.
Throughout the lightweight soil, especially the project involved in the research status of EPS silt mixing light-weight soil as you can see, the current domestic and foreign research focused on the formula ratio and macro physical and mechanical properties of the research, and the microstructure characteristics of poorly understood.
So to carry out the EPS of silt mixing light-weight soil microstructure changes of research, to explore the mechanism of deformation and deformation law, establish its microscopic structure and the relationship between the macroscopic deformation properties is essential.
The final purpose of study is for EPS silt mixed lightweight soil engineering application provides reasonable geotechnical parameters, for the selection, preparation has a clear service engineering properties of EPS silt mixing light-weight soil, can be widely applied to facilitate the green technology.
Online since: January 2013
Authors: Zhi Zhi Hu, Yun Hua Lu, Guo Yong Xiao, Li Na Luan, Yan Dong
The structure and properties of copolyimides were characterized by FT-IR, UV-vis and solubility testing, and the effect of monomers on the properties of polyimides was also investigated.
They are extensively used not only for their excellent thermal stability but also for their good mechanical properties, low dielectric constant, low coefficient of thermal expansion and high radiation resistance [1].
The paper reports a study of the synthesis and properties of a soluble and transparent copolyimide.
The effects of mole ratio on the solubility and optical properties of PI copolymers were studied.
Therefore, the results demonstrate that the intermolecular interaction of polymer chain is very important factor that affects the solubility of polyimides.
They are extensively used not only for their excellent thermal stability but also for their good mechanical properties, low dielectric constant, low coefficient of thermal expansion and high radiation resistance [1].
The paper reports a study of the synthesis and properties of a soluble and transparent copolyimide.
The effects of mole ratio on the solubility and optical properties of PI copolymers were studied.
Therefore, the results demonstrate that the intermolecular interaction of polymer chain is very important factor that affects the solubility of polyimides.
Online since: October 2014
Authors: Fang Hong Sun, Tao Zhang, Bo Song, Jian Jin Liu
The uniform temperature flied of substrates is a key factor to deposit high-quality diamond films on milling tools by the hot filament chemical vapor deposition (HFCVD).
Temperature distribution on the substrates is a significant factor in the deposition process, which seriously affects growth rate and surface quality of deposited diamond films [3].
In addition, the material properties used in the simulation are defined in Table 1.
Taking into account the above mentioned factors, the increasing of the rotational speed of worktable is suitable to grow homogeneous diamond films.
Development of ultrananocrystalline diamond (UNCD) coatings for multipurpose mechanical pump seals, J.
Temperature distribution on the substrates is a significant factor in the deposition process, which seriously affects growth rate and surface quality of deposited diamond films [3].
In addition, the material properties used in the simulation are defined in Table 1.
Taking into account the above mentioned factors, the increasing of the rotational speed of worktable is suitable to grow homogeneous diamond films.
Development of ultrananocrystalline diamond (UNCD) coatings for multipurpose mechanical pump seals, J.
Online since: May 2011
Authors: Hai Ping Qi, Wen Zhong Hu, Ai Li Jiang, Mi Xia Tian
The effects of mechanical damage on nutritional compositions of fresh-cut potatoes into half averagely have been investigated.
In general, fresh-cut products have a shorter shelf-life, which is mainly due to mechanical stresses [2].
The physiological effects of wounding are important factors in determining quality and shelf life of most fresh-cut fruit and vegetable products.
While the inner layer fresh cells’ respiration increased the exhaustion of itself affected by the cutting wound.
These secondary reactions may bring about changes in physical, chemical and nutritional characteristics and may also affect the sensory properties of fruits and vegetables.
In general, fresh-cut products have a shorter shelf-life, which is mainly due to mechanical stresses [2].
The physiological effects of wounding are important factors in determining quality and shelf life of most fresh-cut fruit and vegetable products.
While the inner layer fresh cells’ respiration increased the exhaustion of itself affected by the cutting wound.
These secondary reactions may bring about changes in physical, chemical and nutritional characteristics and may also affect the sensory properties of fruits and vegetables.