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Online since: February 2007
Authors: Chang Chun Ge, Wen Bin Cao
But the
lack of its reliability in mechanical properties has been a critical problem preventing widespread
structural applications.
The mechanical properties and fracture behavior were evaluated under bending tests.
The relationships between mechanical properties of Si3N4/BN multilayer materials and the geometrical factors, number of layers (N) and layer thickness ratio (λh), have been studied.
Calculated result about the mechanical properties with various layer thickness ratios [13].
Calculated results about the mechanical properties with various numbers of layers [13].
The mechanical properties and fracture behavior were evaluated under bending tests.
The relationships between mechanical properties of Si3N4/BN multilayer materials and the geometrical factors, number of layers (N) and layer thickness ratio (λh), have been studied.
Calculated result about the mechanical properties with various layer thickness ratios [13].
Calculated results about the mechanical properties with various numbers of layers [13].
Online since: March 2007
Authors: Chong Du Cho, Duk Jae Yoon, Kyoung Hoan Na
Extrusion properties such as extrusion load, grain size, micro hardness and surface quality
are compared between the main parameters during the hot forward extrusion process.
In addition it is easily disclosed from the experiment results that the die land designed for safe tool-set plays a key role in improving the mechanical properties of formed product during hot forward extrusion process for AZ31 magnesium alloy.
These translate the parts into good mechanical properties, which could contribute significantly to the aspect of weight saving in the design and production of automotive and aerospace components, materials handling equipments and even sporting goods [1, 2].
Also, forming conditions such as material properties, friction and lubricant, punch speed, extrusion ratio and initial temperature of die and workpiece, which affect to flow stress and forgeability, are needed to be carefully reviewed [4, 5].
It is normally evaluated from the figure that optimized grain flow orientation was obtained through the hot experiment in this paper and was capable of improving mechanical properties of the formed product after hot forward extrusion process.
In addition it is easily disclosed from the experiment results that the die land designed for safe tool-set plays a key role in improving the mechanical properties of formed product during hot forward extrusion process for AZ31 magnesium alloy.
These translate the parts into good mechanical properties, which could contribute significantly to the aspect of weight saving in the design and production of automotive and aerospace components, materials handling equipments and even sporting goods [1, 2].
Also, forming conditions such as material properties, friction and lubricant, punch speed, extrusion ratio and initial temperature of die and workpiece, which affect to flow stress and forgeability, are needed to be carefully reviewed [4, 5].
It is normally evaluated from the figure that optimized grain flow orientation was obtained through the hot experiment in this paper and was capable of improving mechanical properties of the formed product after hot forward extrusion process.
Online since: October 2006
Authors: Simo Pekka Hannula, Outi Söderberg, V.K. Lindroos, Timo Jämsä
So far, the biomedical properties of the MSM
alloys are less studied.
There are still some problems associated with the NiTi SMAs such as corrosion and fatigue resistance, as well as their high elastic modulus and mechanical properties compared with human bone tissues [21].
Superelastic Ti-Ni alloy exhibits ideal mechanical properties for the orthodontic mechanotherapy [1,4].
In addition to the cycling loading and deformation, several other factors should be taken into account.
The history, properties and characteristics of the archwires are reviewed in [59].
There are still some problems associated with the NiTi SMAs such as corrosion and fatigue resistance, as well as their high elastic modulus and mechanical properties compared with human bone tissues [21].
Superelastic Ti-Ni alloy exhibits ideal mechanical properties for the orthodontic mechanotherapy [1,4].
In addition to the cycling loading and deformation, several other factors should be taken into account.
The history, properties and characteristics of the archwires are reviewed in [59].
Online since: August 2004
Authors: Manabu Enoki, Shoichi Nambu
Also the relationship between mechanical
properties and microfracture process in graphite was not enough analyzed.
Analysis of such microfracture behavior as stochastic process is needed in order to understand the mechanical properties of these materials quantitatively.
In this study, we performed AE measurement during mechanical properties tests, and considered microfracture process by stochastic process theory.
Finally, the relationship between mechanical properties and microfracture process was discussed.
Murakami, Stress Intensity Factors Handbook, Vol. 2, p. 941
Analysis of such microfracture behavior as stochastic process is needed in order to understand the mechanical properties of these materials quantitatively.
In this study, we performed AE measurement during mechanical properties tests, and considered microfracture process by stochastic process theory.
Finally, the relationship between mechanical properties and microfracture process was discussed.
Murakami, Stress Intensity Factors Handbook, Vol. 2, p. 941
Online since: May 2011
Authors: Yang Li, Lian Zhou Jiang, Xiao Nan Sui
Factors’ contribution rate can be obtained by the F test: x2> x1> x3, the freezing time> freezing temperature> thawing temperature [10,16].
It can be seen that the interaction of three factors significantly influence the oil recovery rate and there are obvious extreme values in the analysis.
A. emulsion×1000(Nitrogen fixation, SEM cooling stage) B. emulsion×2000(Nitrogen fixation, SEM cooling stage) C. frozen-thawed emulsion×1000 D frozen-thawed emulsion×3000 Fig. 5 Status of micro-structure before and after de-stabilization of emulsion DSC test on emulsion before and after demulsification Different proteins have different functional properties, which is related to the structure of proteins and protein denaturation of different levels will affect the protein structure, thus further affecting the functional properties of proteins.
DSC analysis can provide a lot of information, such as the solvent, the molecular interaction between the impact of changes in protein denaturation, and processing conditions on the properties of protein function and so on.
Some physico-chemical properties of Moringa oleifera seed oil extracted using solvent and aqueous enzymatic methods.
It can be seen that the interaction of three factors significantly influence the oil recovery rate and there are obvious extreme values in the analysis.
A. emulsion×1000(Nitrogen fixation, SEM cooling stage) B. emulsion×2000(Nitrogen fixation, SEM cooling stage) C. frozen-thawed emulsion×1000 D frozen-thawed emulsion×3000 Fig. 5 Status of micro-structure before and after de-stabilization of emulsion DSC test on emulsion before and after demulsification Different proteins have different functional properties, which is related to the structure of proteins and protein denaturation of different levels will affect the protein structure, thus further affecting the functional properties of proteins.
DSC analysis can provide a lot of information, such as the solvent, the molecular interaction between the impact of changes in protein denaturation, and processing conditions on the properties of protein function and so on.
Some physico-chemical properties of Moringa oleifera seed oil extracted using solvent and aqueous enzymatic methods.
Online since: June 2008
Authors: Hiroyuki Kokawa, Masakatsu Maeda, Kunitaka Masaki, Yutaka S. Sato
The mechanical properties of the friction stir (FS) welds are strongly affected by the
grain size in solid-solution strengthening materials [7, 8].
Since the grain size of the high-temperature deformed material mainly depends on the strain rate and temperature when the strain is high [9], both the strain rate and temperature are important factors for understanding the microstructural evolution during FSW.
In these factors, the temperature can be experimentally measured during FSW using thermocouple [10, 11].
In the plane-strain compression test, strain was about 5 in the midsection of the specimen at reduction ratio of about 83 %, which was hardly affected by the compression rate.
Since the grain size of the high-temperature deformed material mainly depends on the strain rate and temperature when the strain is high [9], both the strain rate and temperature are important factors for understanding the microstructural evolution during FSW.
In these factors, the temperature can be experimentally measured during FSW using thermocouple [10, 11].
In the plane-strain compression test, strain was about 5 in the midsection of the specimen at reduction ratio of about 83 %, which was hardly affected by the compression rate.
Online since: October 2012
Authors: Ali Ourdjini, Mohd Hasbullah Idris, Tuti Yasmin Alias, Ahmad Zuraida
Ceramic slurry rheology behavior and stability depends on both binder and refractory materials properties.
Microstructure, mechanical, rheological properties of starch based binders depend on the processing technique and conditions of starch.
Other contribution factors are volume fraction of starch to plasticizer and shear force applied.
Inconsistent ceramic thickness produce different in temperature gradient that affect solidification rate in casting process [1].
Sopyan, Porous ceramics with controllable properties prepared by protein foaming-consolidation method, J.
Microstructure, mechanical, rheological properties of starch based binders depend on the processing technique and conditions of starch.
Other contribution factors are volume fraction of starch to plasticizer and shear force applied.
Inconsistent ceramic thickness produce different in temperature gradient that affect solidification rate in casting process [1].
Sopyan, Porous ceramics with controllable properties prepared by protein foaming-consolidation method, J.
Online since: August 2018
Authors: A.M. Al-Mukhtar, ali fahem, Shaymaa Abdul Khader Al-Jumaili
Effect of welding current on tensile shear strength
Effect of Annealing Treatment
The annealing improves the mechanical properties.
Conclusions Mechanical properties and quality of spot weldments improve by increasing the welding current.
Demir, “Effect of welding current on mechanical properties of galvanized chromided steel sheets in electrical resistance spot welding,” Mater.
Al-Jumaili, “Mechanical Properties Investigation of Multi-Lap Stainless Steel Sheets,” J.
Aslanlar, “The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry,” Mater.
Conclusions Mechanical properties and quality of spot weldments improve by increasing the welding current.
Demir, “Effect of welding current on mechanical properties of galvanized chromided steel sheets in electrical resistance spot welding,” Mater.
Al-Jumaili, “Mechanical Properties Investigation of Multi-Lap Stainless Steel Sheets,” J.
Aslanlar, “The effect of nucleus size on mechanical properties in electrical resistance spot welding of sheets used in automotive industry,” Mater.
Online since: July 2021
Authors: Zaid G.A. Al-Jlaihawi, Muhsin Jaber Jweeg
In this work, the mechanical properties of three types of dough rubber NR, NR/BR, and NR/SBR have been investigated using five percentages of materials fill (30, 40, 50, 60, and 70) pphr.
Experimental Work The experimental work included multi-steps in calculating the mechanical properties for rubber materials with various additive effects.
A judgment depending on the discrepancies will indicate the experimental program’s effectiveness for predicting the effect for (pphr) on the mechanical properties for rubber materials.
The cross-links density of NR/SBR dough improves the mechanical properties compared with that of NR and NR/BR blends.
Hammood and Muhannad Al-Waily, Experimental and Theoretical Studies of Mechanical Properties for Reinforcement Fiber Types of Composite Materials, International Journal of Mechanical & Mechatronics Engineering, 12, 4 (2012)
Experimental Work The experimental work included multi-steps in calculating the mechanical properties for rubber materials with various additive effects.
A judgment depending on the discrepancies will indicate the experimental program’s effectiveness for predicting the effect for (pphr) on the mechanical properties for rubber materials.
The cross-links density of NR/SBR dough improves the mechanical properties compared with that of NR and NR/BR blends.
Hammood and Muhannad Al-Waily, Experimental and Theoretical Studies of Mechanical Properties for Reinforcement Fiber Types of Composite Materials, International Journal of Mechanical & Mechatronics Engineering, 12, 4 (2012)
Online since: May 2016
Authors: Hamimah Abdul Rahman, Linda Agun, Mohamed Hakim Ahmad Shah
The choice of cathode materials is an important aspect to increase the cathode properties and cell performance.
However, there are other factors such as the carbonate composition in the composite cathode that can influence its properties.
The small thermal expansion can reduce the internal stress between the cathode and electrolyte during cell operations and enhancing the mechanical properties [7].
The amount of (Li/Na)2 binary carbonate molar ratio (67:33, 62:38, 53:47) in the BSCF-SDCc and LSCF-SDCc cathode composite significantly affects the powder properties The chemical bonding analysis shows the catbonate still exist after the calcination process.
Ahn, Preparation and electrochemical properties of Ni–SDC thin films for IT-SOFC anode, J.
However, there are other factors such as the carbonate composition in the composite cathode that can influence its properties.
The small thermal expansion can reduce the internal stress between the cathode and electrolyte during cell operations and enhancing the mechanical properties [7].
The amount of (Li/Na)2 binary carbonate molar ratio (67:33, 62:38, 53:47) in the BSCF-SDCc and LSCF-SDCc cathode composite significantly affects the powder properties The chemical bonding analysis shows the catbonate still exist after the calcination process.
Ahn, Preparation and electrochemical properties of Ni–SDC thin films for IT-SOFC anode, J.