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Online since: June 2021
Authors: Uraiwan Intatha, Nattaya Tawichai, Phattharasaya Rattanawongkun, Nattakan Soykeabkaew, Ruethaichanok Prasertpong
The tensile properties of the current refined sheets were also in the acceptable range for typical commercial molded pulp packaging.
After pulping process, a pulp beating or refining process is normally required to deliver desirable physical and mechanical properties of pulps and resulting products [6, 7].
The variation of many refining factors could also affect to refining degree of pulp and resulting pulp properties such as components of pulp, refining speed, refining times, and so on.
The results indicated that the Valley beater refining for 30 min was enough to provide the promising rice straw pulp and sheet with acceptable mechanical properties for molded pulp packaging use.
To further advance the pulp properties, longer refining times could be performed in the future works.
After pulping process, a pulp beating or refining process is normally required to deliver desirable physical and mechanical properties of pulps and resulting products [6, 7].
The variation of many refining factors could also affect to refining degree of pulp and resulting pulp properties such as components of pulp, refining speed, refining times, and so on.
The results indicated that the Valley beater refining for 30 min was enough to provide the promising rice straw pulp and sheet with acceptable mechanical properties for molded pulp packaging use.
To further advance the pulp properties, longer refining times could be performed in the future works.
Online since: April 2024
Authors: Moudjeb Miloud, Nemdili Ali, Hammadi Larbi
Rao, Rheological Properties of Aloe Vera (Aloe barbadensis Miller) Juice Concentrates, Journal of Food Process Engineering. 37(2014)375-386
Villa, The influence of Aloe vera gel incorporation on the physicochemical and mechanical properties of banana starch‐chitosan edible films.
Gaidi, Impact of Sodium Tripolyphosphate on the Rheological Properties of Dams Sediments and Friction Factor during Hydraulic Dredging of Dams.
Freitas, The role played by the aging of aloe vera on its drag reduction properties in turbulent flows.
Patil, A comprehensive overview of functional and rheological properties of aloe vera and its application in foods.
Villa, The influence of Aloe vera gel incorporation on the physicochemical and mechanical properties of banana starch‐chitosan edible films.
Gaidi, Impact of Sodium Tripolyphosphate on the Rheological Properties of Dams Sediments and Friction Factor during Hydraulic Dredging of Dams.
Freitas, The role played by the aging of aloe vera on its drag reduction properties in turbulent flows.
Patil, A comprehensive overview of functional and rheological properties of aloe vera and its application in foods.
Online since: January 2010
Authors: Sybrand van der Zwaag, Pedro E.J. Rivera-Díaz-del-Castillo, Wei Xu
Alloys displaying exceptional properties are subjected to complex interactions between
microstructure and processing requirements, which can be described in terms of evolutionary
principles.
Such designed alloys become feasible for fabrication by tailoring their microstructure employing thermodynamic and kinetic principles, while fracture toughness properties can be controlled via performing quantum mechanical cohesion energy computations.
The presence of δ-ferrite in maraging steels can lead to inferior mechanical and corrosion resistant properties [5].
Although the precipitation strengthening factors are lower than those displayed by the A and B series (figure 2), the new alloys 1D-3D still show improved strength over their existing counterparts.
The first two factors may be tailored via computing the dispersion geometry (including average particle size and volume fraction) of precipitates formed at higher temperature.
Such designed alloys become feasible for fabrication by tailoring their microstructure employing thermodynamic and kinetic principles, while fracture toughness properties can be controlled via performing quantum mechanical cohesion energy computations.
The presence of δ-ferrite in maraging steels can lead to inferior mechanical and corrosion resistant properties [5].
Although the precipitation strengthening factors are lower than those displayed by the A and B series (figure 2), the new alloys 1D-3D still show improved strength over their existing counterparts.
The first two factors may be tailored via computing the dispersion geometry (including average particle size and volume fraction) of precipitates formed at higher temperature.
Online since: November 2012
Authors: N.M. Osipenko, Robert V. Goldstein
Some Mechanical Models of Chemical-mechanical Polishing Processes
R.
Empirical data related to specific variants of the process, as a rule, represent the property of the appropriate companies.
The CMP parameters and results depend on mechanical properties of contacting bodies such as stiffness, hardness and compressibility.
The erosion model is aimed to combine the chemical affects modeled at the abrasive particles scale with the processes at the scale of the whole polished surface [7].
Note, that to estimate the crack opening one can neglect by a difference of deformation properties of contacting materials loading to some tangential forces.
Empirical data related to specific variants of the process, as a rule, represent the property of the appropriate companies.
The CMP parameters and results depend on mechanical properties of contacting bodies such as stiffness, hardness and compressibility.
The erosion model is aimed to combine the chemical affects modeled at the abrasive particles scale with the processes at the scale of the whole polished surface [7].
Note, that to estimate the crack opening one can neglect by a difference of deformation properties of contacting materials loading to some tangential forces.
Online since: November 2011
Authors: Yun Xin Wu, Kai Liao
In this experiment, every error factor is independent, so ρij =0. m is the total number of the error factors.
(5) The error of elastic modulus The standard mechanical properties of the material were tested 10 times in the universal testing machine.
In Fig 1(a) the uncertainties from three experimental error factors were compared.
In experiment process, the errors, which affect test precision, from the data acquisition, machining stress, physical properties and experiment reiteration could make a deviation appear in results.
What these errors affect is the accuracy.
(5) The error of elastic modulus The standard mechanical properties of the material were tested 10 times in the universal testing machine.
In Fig 1(a) the uncertainties from three experimental error factors were compared.
In experiment process, the errors, which affect test precision, from the data acquisition, machining stress, physical properties and experiment reiteration could make a deviation appear in results.
What these errors affect is the accuracy.
Online since: June 2019
Authors: Cătălin Gheorghiță, Vlad Gheorghiță
A material index is a combination of properties of materials in the function equation [8].
It can sometimes be a single property, sometimes it is a combination of properties.
The design of a structural element is specified by: the functional requirements (F), the geometry (G) and the properties of the material (M).
These allows to represent any property or function of properties.
The Finite Element Analysis was set in assumption of 3D static and linear material properties.
It can sometimes be a single property, sometimes it is a combination of properties.
The design of a structural element is specified by: the functional requirements (F), the geometry (G) and the properties of the material (M).
These allows to represent any property or function of properties.
The Finite Element Analysis was set in assumption of 3D static and linear material properties.
Online since: July 2013
Authors: Alexander Burya, Georgiy Kozlov, Maryana Gubskaya, Xiang Ming Feng, Xiang Yang Qian
As it should be expected, based on the most general principles, the reinforcement degree of the investigated nanocomposites is determined by three groups of factors: properties of the polymer matrix and nano-filler, and their level of interaction.
As it should have been expected, based on the most general principles, the reinforcement degree of the investigated nanocomposites is determined by three groups of factors: properties of the polymer matrix and nano-filler, as well as their level of interaction.
Anharmonic effects and physico-mechanical properties of polymers.
Effect of organoclay structure on morphology and properties.
Fractal analysis of structure and properties of interface layers in discontinuously filled polymer composites.
As it should have been expected, based on the most general principles, the reinforcement degree of the investigated nanocomposites is determined by three groups of factors: properties of the polymer matrix and nano-filler, as well as their level of interaction.
Anharmonic effects and physico-mechanical properties of polymers.
Effect of organoclay structure on morphology and properties.
Fractal analysis of structure and properties of interface layers in discontinuously filled polymer composites.
Online since: June 2014
Authors: Li Ping Liu, Xiu Feng Cao
Many studies dealt with the influence of each factor and the combination of two or three factors.
Low temperature made the physical properties of the polymer coatings change and influenced the service life [18].
The natural ageing of coated steel by multiple ageing factors had been proposed.
One of the most important properties that organic coatings must have was weathering resistance.
Some techniques focused on macroscopic properties, including change in contact angle and loss of gloss, weight, and mechanical integrity.
Low temperature made the physical properties of the polymer coatings change and influenced the service life [18].
The natural ageing of coated steel by multiple ageing factors had been proposed.
One of the most important properties that organic coatings must have was weathering resistance.
Some techniques focused on macroscopic properties, including change in contact angle and loss of gloss, weight, and mechanical integrity.
Online since: August 2015
Authors: Muhammad Saqib Qayyum
A356.0 is a very common material for many aerospace and manufacturing purposes developed in sand and permanent molds[1] and yields excellent properties even for pressure tight castings.
The riser calculations were initially made using the casting modulus[12] method with a multiplying factor of 1.2 and later on changed by using the thermal[10] modulus for better feeding and minimizing the risk factor for shrinkage.
Rooy, Aluminum alloy castings: properties, processes, and applications: ASM International, 2004
Nguyen, "Identification of critical factors affecting shrinkage porosity in permanent mold casting using numerical simulations based on design of experiments," Journal of Materials Processing Technology, vol. 209, pp. 1209-1219, 2009
Quaresma, Amauri Garcia, "Melt characteristics and solidification growth direction with respect to gravity affecting the interfacial heat transfer coefficient of chill castings," Materials and Design, pp. 3592–3601, 2009
The riser calculations were initially made using the casting modulus[12] method with a multiplying factor of 1.2 and later on changed by using the thermal[10] modulus for better feeding and minimizing the risk factor for shrinkage.
Rooy, Aluminum alloy castings: properties, processes, and applications: ASM International, 2004
Nguyen, "Identification of critical factors affecting shrinkage porosity in permanent mold casting using numerical simulations based on design of experiments," Journal of Materials Processing Technology, vol. 209, pp. 1209-1219, 2009
Quaresma, Amauri Garcia, "Melt characteristics and solidification growth direction with respect to gravity affecting the interfacial heat transfer coefficient of chill castings," Materials and Design, pp. 3592–3601, 2009
Online since: November 2012
Authors: Gajanan P. Chaudhari, B.S. Sunder Daniel, H. Shivananda Nayaka
Introduction
Wrought magnesium alloys are desirable for many applications, as they have superior mechanical properties than cast alloys.
Ideally the grain growth exponent should be 2 for pure metals, but in some cases, the value of n may be higher than 2 due to the role played by various factors affecting the grain growth kinetics, such as the alloying elements, dislocation sub-structure, impurity-drag, free surface effect, texture, and heterogeneities [9].
We believe that the above-observed lower grain growth activation energy for the investigated AZ31 Mg alloy may be attributed to two factors.
Chen, Microstructure and mechanical properties of Mg–Al–Zn alloy sheets severely deformed by accumulative roll-bonding, J Mater Sci. 42 (2007) 9256 – 9261
Chen, Improving mechanical properties of Mg-Al-Zn alloy sheets through accumulative roll-bonding, Trans Nonferrous Met Soc. 18 (2008) 309 – 314
Ideally the grain growth exponent should be 2 for pure metals, but in some cases, the value of n may be higher than 2 due to the role played by various factors affecting the grain growth kinetics, such as the alloying elements, dislocation sub-structure, impurity-drag, free surface effect, texture, and heterogeneities [9].
We believe that the above-observed lower grain growth activation energy for the investigated AZ31 Mg alloy may be attributed to two factors.
Chen, Microstructure and mechanical properties of Mg–Al–Zn alloy sheets severely deformed by accumulative roll-bonding, J Mater Sci. 42 (2007) 9256 – 9261
Chen, Improving mechanical properties of Mg-Al-Zn alloy sheets through accumulative roll-bonding, Trans Nonferrous Met Soc. 18 (2008) 309 – 314