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Online since: April 2020
Authors: Yuni Kusumastuti, Nur Rofiqoh Eviana Putri, Bintang Adi Pradana, Nadya Alfa Cahaya Imani, Dhimas Agung Kurniawan
Thermal properties.
Swelling properties.
By controlling the swelling properties, mechanical strength of scaffold is also can be controlled.
De Vitta, Low back pain and some associated factors: is there any difference between genders?
Santerre, Characterization of a biodegradable electrospun polyurethane nanofiber scaffold: mechanical properties and cytotoxicity, Acta Biomater. 6 (2010) 3847-3855
Swelling properties.
By controlling the swelling properties, mechanical strength of scaffold is also can be controlled.
De Vitta, Low back pain and some associated factors: is there any difference between genders?
Santerre, Characterization of a biodegradable electrospun polyurethane nanofiber scaffold: mechanical properties and cytotoxicity, Acta Biomater. 6 (2010) 3847-3855
Online since: October 2022
Authors: Zhi Hui Li, Ya Nan Li, Kai Wen, He Yin, Qing Hong Wen
Generally speaking, after casting, homogenization treatment, and plastic deformation, a large number of second phases are distributed on the aluminum alloy matrix, and these second phases are the main factor affecting the comprehensive properties of the alloy.
The factors affecting the dissolution of the second phase during the solution treatment of Al-Zn-Mg-Cu alloys include solution temperature, solution time, quenching transfer time, etc.
Among them, the temperature and time of solution treatment are the main factors [8].
Chen, Evolution of second phases and mechanical properties of 7075 Al alloy processed by solution heat treatment, Trans.
Khang Chuan, Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy, Mater.
The factors affecting the dissolution of the second phase during the solution treatment of Al-Zn-Mg-Cu alloys include solution temperature, solution time, quenching transfer time, etc.
Among them, the temperature and time of solution treatment are the main factors [8].
Chen, Evolution of second phases and mechanical properties of 7075 Al alloy processed by solution heat treatment, Trans.
Khang Chuan, Effect of a two-step solution heat treatment on the microstructure and mechanical properties of 332 aluminium silicon cast alloy, Mater.
Online since: July 2023
Authors: P. Umamaheswarrao, Avula Suresh, S. Praveen, Shaik P. Abdulla, T. Sahit Kumar, Shaik Musharaf, D. Vijay Praveen
Materials which possess superior properties, brittle are difficult to machine using conventional methods.
So that these factors are taken as input process parameters.
Four factors were chosen for the present study among which one factor with two levels and all the other factors with 3 levels.
Yi is the normalized asset value of its alternatives, where g represents maximization; (n-g) represents minimization with considering all properties
A2 (Laser power at 2 kW), B3 (Gas pressure at 1 bar), C3 (Focal length at 1.2 mm) D1 (cutting speed at 1300 mm/min) Conclusions The experiments were conducted as per Taguchi’s L18 orthogonal array and multi-objective optimization was performed using MOORA · Laser power was observed to be the most significant factor affecting the kerf width followed by focal length, gas pressure and cutting speed
So that these factors are taken as input process parameters.
Four factors were chosen for the present study among which one factor with two levels and all the other factors with 3 levels.
Yi is the normalized asset value of its alternatives, where g represents maximization; (n-g) represents minimization with considering all properties
A2 (Laser power at 2 kW), B3 (Gas pressure at 1 bar), C3 (Focal length at 1.2 mm) D1 (cutting speed at 1300 mm/min) Conclusions The experiments were conducted as per Taguchi’s L18 orthogonal array and multi-objective optimization was performed using MOORA · Laser power was observed to be the most significant factor affecting the kerf width followed by focal length, gas pressure and cutting speed
Online since: November 2013
Authors: Iulian Antoniac
Biomaterials that are used for bone tissue engineering need to fulfil many requirements that are closely connected to the biofunctional properties, physical and chemical characteristics, mechanical properties, interactions with the physiological environment.
An important properties for polymeric based composite it’s the porosity, who affects their mechanical properties, degradability, dimensional stability and have the potential of compromising not only the function of the implant but also can affect the biocompatibility [3].
For these biomaterials, the degradation of the collagen matrix is very important because the rate of degradation (loss in mechanical properties) should be tailored with the rate of tissue generation [1].
We use β-tricalcium phosphate and hydroxyapatite as bioceramics for reinforcing the collagen matrix because we want to see how the bioceramics type will affect the biodegradation properties of the composites [6, 7].
Future studies will be made in order to optimise the composition of the composite materials, analyse the mechanical properties and the biocompatibility of the experimental composite materials developed.
An important properties for polymeric based composite it’s the porosity, who affects their mechanical properties, degradability, dimensional stability and have the potential of compromising not only the function of the implant but also can affect the biocompatibility [3].
For these biomaterials, the degradation of the collagen matrix is very important because the rate of degradation (loss in mechanical properties) should be tailored with the rate of tissue generation [1].
We use β-tricalcium phosphate and hydroxyapatite as bioceramics for reinforcing the collagen matrix because we want to see how the bioceramics type will affect the biodegradation properties of the composites [6, 7].
Future studies will be made in order to optimise the composition of the composite materials, analyse the mechanical properties and the biocompatibility of the experimental composite materials developed.
Online since: November 2012
Authors: Sung Tae Kim, Sung Yong Park, Keun Hee Cho, Jeong Rae Cho, Byung Suk Kim
Through such composition, this FRP-concrete composite deck for cable-stayed bridges takes full advantage of the properties of each material and provides durability and lightweight.
Table 2 lists the mechanical properties of FRP panel used for the specimens.
Furthermore, if strength reduction factors of 0.55 and 0.85 are applied respectively for the FRP-concrete composite section and for the reinforced concrete section in the 2-side supported specimen, the FRP-concrete composite deck for cable-stayed bridges satisfies the flexural design moment as shown below.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.
Table 2 lists the mechanical properties of FRP panel used for the specimens.
Furthermore, if strength reduction factors of 0.55 and 0.85 are applied respectively for the FRP-concrete composite section and for the reinforced concrete section in the 2-side supported specimen, the FRP-concrete composite deck for cable-stayed bridges satisfies the flexural design moment as shown below.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.
This reveals that the unavoidable low sectional rigidity of the FRP panel in the transverse direction due to the pultrusion process is not affecting significantly the performance of the deck.
Online since: July 2017
Authors: Ralf Riedel, Claudia Fleck, Daniela Penther, Sepideh Kamrani, Alireza Ghasemi
However, the function of nanoparticles in a metallic matrix is related to their distribution in the matrix, which can strongly affect the mechanical properties of the composite.
González, Microstructural factors controlling the strength and ductility of particle-reinforced metal-matrix composites, J.
Tjong, Novel nanoparticle-reinforced metal matrix composites with enhanced mechanical properties, Adv.
Song, Characteristics and mechanical properties of magnesium matrix composites reinforced with micron/submicron/nano SiC particles, J.
Gan, Effect of particle size on microstructure and mechanical properties of SiCp/AZ91 magnesium matrix composite, Mater.
González, Microstructural factors controlling the strength and ductility of particle-reinforced metal-matrix composites, J.
Tjong, Novel nanoparticle-reinforced metal matrix composites with enhanced mechanical properties, Adv.
Song, Characteristics and mechanical properties of magnesium matrix composites reinforced with micron/submicron/nano SiC particles, J.
Gan, Effect of particle size on microstructure and mechanical properties of SiCp/AZ91 magnesium matrix composite, Mater.
Online since: September 2016
Authors: E.A. Yatsenko, V.A. Smoliy, B.M. Goltsman
Analysis of the results allows to establish that the amount of ash-slag waste input into the cellular glass affects the structure and properties of the material.
Introduction of up to 20 wt. % ash-slag waste does not affect the structure of the material, introducing more leads to higher density of cellular glass, and therefore, to deterioration of thermal insulating properties.
Technological solutions determined allows to set the physical and mechanical properties of cellular glass – density, porosity, thermal conductivity, compressive and bending strength – by varying the amount of ash-slag in its composition.
The results of the investigation of basic physical and mechanical properties of synthesized samples of optimal compositions are presented in Table 2: Table 2.
Gol’tsman, Investigation of the factors influencing the properties and structure of foamed slag glass, Glass and Ceramics. 71 (2014) 111-114
Introduction of up to 20 wt. % ash-slag waste does not affect the structure of the material, introducing more leads to higher density of cellular glass, and therefore, to deterioration of thermal insulating properties.
Technological solutions determined allows to set the physical and mechanical properties of cellular glass – density, porosity, thermal conductivity, compressive and bending strength – by varying the amount of ash-slag in its composition.
The results of the investigation of basic physical and mechanical properties of synthesized samples of optimal compositions are presented in Table 2: Table 2.
Gol’tsman, Investigation of the factors influencing the properties and structure of foamed slag glass, Glass and Ceramics. 71 (2014) 111-114
Online since: October 2024
Authors: Nicuşor Alin Sîrbu, Sorin Vasile Savu, Angelo Andrei Midan, Aurelia Ioana Biholar, Andrei Dănuț Savu
The software might provide guidance or suggestions based on the selected node type and material properties to help users set these parameters optimally
§ Additional Configurations: This could include settings related to specific welding environments, equipment preferences, or any additional factors that might impact the welding process
It's crucial in determining the thermal cycle of the welding process, affecting the microstructure and mechanical properties of the welded joint
§ Welding Speed: It influences the heat input and affects the cooling rate of the weld.
The choice of electrode affects the stability of the arc, deposition rate, and slag detachability
§ Additional Configurations: This could include settings related to specific welding environments, equipment preferences, or any additional factors that might impact the welding process
It's crucial in determining the thermal cycle of the welding process, affecting the microstructure and mechanical properties of the welded joint
§ Welding Speed: It influences the heat input and affects the cooling rate of the weld.
The choice of electrode affects the stability of the arc, deposition rate, and slag detachability
Online since: May 2004
Authors: J.S. Moya, J.F. Bartolomé, J. Requena, Gilbert Fantozzi, Jérôme Chevalier, Ramon Torrecillas, S. Deville, L.A. Díaz
By tailoring the microstructure, it is possible to get
better mechanical properties without any thermal degradation sensitivity.
The alumina grains elongation will further improve the mechanical properties.
Mechanical properties These composites show [3] an increase of crack resistance compared to the composites processed with a classical route (powder-mixing).
Conclusion Microstructures, mechanical properties and thermal stability of zirconia toughened alumina nanocomposites have been studied.
These advanced composites exhibit higher mechanical properties than both monolithic alumina and zirconia.
The alumina grains elongation will further improve the mechanical properties.
Mechanical properties These composites show [3] an increase of crack resistance compared to the composites processed with a classical route (powder-mixing).
Conclusion Microstructures, mechanical properties and thermal stability of zirconia toughened alumina nanocomposites have been studied.
These advanced composites exhibit higher mechanical properties than both monolithic alumina and zirconia.
Online since: September 2020
Authors: Banjuraizah Johar, Shing Fhan Khor, Tinesha Selvaraj
The production of nearly pore-free ceramic materials with high mechanical properties are essential in high performance application [2].
The properties of the agglomerates naturally have a major influence on the processing steps, such as compaction and sintering process.
Densification of sintered ceramics is subjected to several factors such as density of the green body, density variation and sintering parameter.
Large number of defects in the form of coarse inter-agglomerates pores and microcracks, which strongly affect the mechanical parameters.
Khor, Iron/Zinc doped 8 mol% Yttria Stabilized Zirconia electrolytes for the green fuel cell technology: A comparative study of thermal analysis, crystalline structure, microstructure, mechanical and electrochemical properties, Mater.
The properties of the agglomerates naturally have a major influence on the processing steps, such as compaction and sintering process.
Densification of sintered ceramics is subjected to several factors such as density of the green body, density variation and sintering parameter.
Large number of defects in the form of coarse inter-agglomerates pores and microcracks, which strongly affect the mechanical parameters.
Khor, Iron/Zinc doped 8 mol% Yttria Stabilized Zirconia electrolytes for the green fuel cell technology: A comparative study of thermal analysis, crystalline structure, microstructure, mechanical and electrochemical properties, Mater.