scholarly journals Synthesis and Properties of Electroconductive Polymeric Composite Material Based on Polypyrrole

2012 ◽  
Vol 2012 ◽  
pp. 1-7 ◽  
Author(s):  
N. S. Ilicheva ◽  
N. K. Kitaeva ◽  
V. R. Duflot ◽  
V. I. Kabanova
Keyword(s):  
Mechanical Properties ◽  
Composite Material ◽  
Mechanical Strength ◽  
Process Parameters ◽  
Physical And Mechanical Properties ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Elastic Composite ◽  
The Relationship

A technique is proposed for obtaining electroconductive, mechanically strong, and elastic composite material based on polypyrrole and hydrophilized polyethylene. The relationship is established between the process parameters and properties of the composite material such as electroconductivity and mechanical strength. Several methods are considered in the view of increasing electroconductivity of the material. Physical and mechanical properties of the composite material are investigated.

scholarly journals Cutting mode impact upon output process parameters at processing of polycrystalline composite materials

2017 ◽  
Vol 2 (6) ◽  
pp. 34-38
Author(s):  
Ю. Зубарев ◽  
Yu. Zubarev ◽  
А. Приемышев ◽  
A. Priyomyshev ◽  
А. Заостровский ◽  
...  
Keyword(s):  
Composite Material ◽  
Composite Materials ◽  
Process Parameters ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Output Process ◽  
Product Surface ◽  
Required Quality ◽  
Material Cutting

The peculiarities in polymeric composite material cutting are considered. The recommendations for use of different materials for cutters, their geometry and treatment modes are offered that allows obtaining the required quality of a product surface.

Dynamic Mechanical Analysis of Bulk Carbon Nanotube Materials

2009 ◽  
Vol 1204 ◽  
Author(s):  
Brian T. Moses ◽  
Paul R. Jarosz ◽  
Christopher M. Schauerman ◽  
Jack Alvarenga ◽  
Brian J. Landi ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Composite Material ◽  
Carbon Nanotube ◽  
Mechanical Strength ◽  
Mechanical Analysis ◽  
Processing Techniques ◽  
Oxidation Parameters ◽  
The Relationship ◽  
Bulk Carbon

AbstractSeveral purification and processing techniques for laser-produced single wall carbon nanotube (SWCNT) soot were investigated and the resulting changes in the mechanical properties were characterized. SWCNT ribbons had non-nanotube carbonaceous content modified via thermal oxidation and the relationship between oxidation parameters and mechanical strength studied. SWCNT/Polyamide composites were developed and exhibited improved toughness, tensile strength and elongation before break. The composite material is observed to have a greater tensile strength than either the baseline paper or the added nylon.

scholarly journals Recycled Mortars with Ceramic Aggregates. Pore Network Transmutation and Its Relationship with Physical and Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1543
Author(s):  
Francisca Guadalupe Cabrera-Covarrubias ◽  
José Manuel Gómez-Soberón ◽  
Carlos Antonio Rosas-Casarez ◽  
Jorge Luis Almaral-Sánchez ◽  
Jesús Manuel Bernal-Camacho
Keyword(s):  
Mechanical Properties ◽  
Image Analysis ◽  
Open Porosity ◽  
Gas Adsorption ◽  
Physical And Mechanical Properties ◽  
Recycled Aggregate ◽  
Bet Surface Area ◽  
Sem Image ◽  
The Relationship ◽  
Sem Image Analysis

The porosity of mortars with recycled ceramic aggregates (10, 20, 30, 50, and 100% as a replacement of natural aggregate) was evaluated and analyzed using three different techniques. The results of gas adsorption (N2), Scanning Electron Microscopy (SEM) image analysis and open porosity allowed establishing the relationship between the recycled aggregate content and the porosity of these mortars, as well as the relationship between porosity and the physical and mechanical properties of the mortars: absorption, density, compressive strength, modulus of elasticity, and drying shrinkage. Using the R2 coefficient and the equation typology as criteria, additional data such as Brunauer, Emmett, and Teller (BET) surface area (N2 adsorption) established significant correlations with the mentioned properties; with SEM image analysis, no explanatory relationships could be established; and with open porosity, revealing relationships were established (R2 > 0.9). With the three techniques, it was confirmed that the increase in porosity is related to the increase in the amount of ceramic aggregate; in particular with gas adsorption (N2) and open porosity. It was concluded that the open porosity technique can explain the behavior of these recycled mortars with more reliable data, in a simple and direct way, linked to its establishment with a more representative sample of the mortar matrix.

Prediction model for the mechanical properties of compacted poplar powder generated via hot-pressing

BioResources ◽  
2021 ◽  
Vol 16 (3) ◽  
pp. 4947-4962
Author(s):  
Jin Yan ◽  
Jianan Liu ◽  
Liqiang Zhang ◽  
Zhili Tan ◽  
Haoran Zhang ◽  
...  
Keyword(s):  
Neural Network ◽  
Mechanical Properties ◽  
Network Model ◽  
Process Parameters ◽  
Neural Network Model ◽  
Hot Pressing ◽  
Process Conditions ◽  
Wood Powder ◽  
Single Factor ◽  
The Relationship

The influence of the process parameters on the mechanical properties of compact wood powder generated via hot-pressing was analyzed through a single-factor experiment. The mechanical properties exhibited a nonlinear trend relative to the process conditions of hot-pressed compact wood powder. The relationship models between the process parameters and the mechanical properties for the compact wood powder were established by applying a multiple regression analysis and neural network methods combined with data from an orthogonal array design. A comparison between experimental and predicted results was made to investigate the accuracy of the established models by applying several data groups among the single-factor experiments. The results showed that the accuracy of the neural network model in terms of predicting the mechanical properties was greater compared with the multiple regression model. This demonstrates that the established neural network model had a better prediction performance, and it can accurately map the relationship between the process conditions and the mechanical properties of the compact wood powder.

The interrelation between physical and mechanical properties of the polymeric composite and fractal dimension of structural elements its surface

2021 ◽  
pp. 54-60
Author(s):  
Val.I. Surikov ◽  
◽  
E.A. Rogachev ◽  
A.M. Lasitsa ◽  
◽  
...  
Keyword(s):  
Fractal Dimension ◽  
Physical And Mechanical Properties ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Structural Elements ◽  
Qualitative And Quantitative Analysis ◽  
Force Microscopy ◽  
Qualitative And Quantitative ◽  
Atomic Force ◽  
Dimension Parameter

The paper shows the promising use of the "fractal dimension" parameter for qualitative and quantitative analysis of the surface structure of samples based of micrographs obtained by scanning electron microscopy and atomic force microscopy. The interrelation of this parameter with some mechanical characteristics of polymeric composite material PTFE-3%tu121 is investigated.

scholarly journals Design of a polymeric composite material femoral stem for hip joint implant

Polímeros ◽  
2019 ◽  
Vol 29 (4) ◽  
Author(s):  
Romeu Rony Cavalcante da Costa ◽  
Fellipe Roberto Biagi de Almeida ◽  
Amanda Albertin Xavier da Silva ◽  
Sandra Mara Domiciano ◽  
André Ferreira Costa Vieira
Keyword(s):  
Composite Material ◽  
Hip Joint ◽  
Femoral Stem ◽  
Polymeric Composite ◽  
Polymeric Composite Material ◽  
Joint Implant

Mechanical Properties of Al 6063 Processed with Equal Channel Angular Extrusion under Varying Process Parameters

2021 ◽  
Vol 54 ◽  
pp. 23-32
Author(s):  
T.M. Azeez ◽  
Lateef O. Mudashiru ◽  
T.B. Asafa ◽  
A.A. Adeleke ◽  
Peter Pelumi Ikubanni
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Process Parameters ◽  
Equal Channel Angular Extrusion ◽  
Design Expert ◽  
Software Analysis ◽  
Angular Extrusion ◽  
Output Factors ◽  
The Relationship ◽  
Optimum Input

Mechanical properties of extruded aluminum are known to significantly depend on the process parameters such as temperature, numbers of extrusion pass and extrusion load among others. This implies that these properties can be influenced by tuning the process parameters. Herein, the effects of these parameters on the tensile strength and hardness of aluminum 6063 series were investigated by using equal channel angular extrusion (ECAE). Experiments were designed using Design Expert software. Analysis of variance (ANOVA) was then used to investigate the main and interactions effects of the process parameters. An empirical mathematical model was generated that shows the relationship between the input and output variables using response surface methodology. Temperature was found to be the most significant factor while extrusion load was the least factor that influenced the hardness and tensile strength which were the output factors. There was a significant increase in tensile strength and hardness after extrusion at different mix of factors. The optimum input variable was discovered at 1020.58 kN, 489.67°C and 3 numbers of extrusion passes.

Impact of quasi-isotropic raster layup on the mechanical behaviour of fused filament fabrication parts

2021 ◽  
pp. 095400832110419
Author(s):  
Lovin K John ◽  
Ramu Murugan ◽  
Sarat Singamneni
Keyword(s):  
Mechanical Properties ◽  
Additive Manufacturing ◽  
Mechanical Strength ◽  
Process Parameters ◽  
Mechanical Behaviour ◽  
Fused Filament Fabrication ◽  
Anisotropic Behaviour ◽  
Oriented Samples ◽  
Weak Interlayer ◽  
Special Concern

The development of fused filament fabrication has extended the range of application of additive manufacturing in various areas of research. However, the mechanical strength of the fused filament fabrication–printed parts were considerably lower than that of parts fabricated by other conventional methods, owing to the observed anisotropic behaviour and formation of voids by weak interlayer diffusion. Intense studies on the effect of design and process parameters of the printed parts on the mechanical properties have been done, whereas studies on the effect of build orientations and raster patterns needs special concern. The main aim of this work is to fabricate parts printed using quasi-isotropic laminate arrangement of rasters, achieved by a raster layup of [45/0/−45/90]s, and to compare their mechanical properties with those of the commonly used 0°/90° (cross) and 45°/−45° (crisscross) raster oriented parts. The quasi-isotropic–oriented samples were observed with improved mechanical behaviour in tensile, compressive, flexural and impact tests compared to the commonly employed raster orientations.

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