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Online since: January 2011
Authors: Chun Mei Yang, Yan Ma
The influences produced by various factors for the formation of flake fibers have been verified through testing, including the improved tool material, the wood grain, the cutting speed and the improvements for locating specimen.
Through mechanical processing method, the structure of wood fiber cells will engender an adjustment process on cell arrangement in the direction of increasing strength, and then eliminate the natural defects of timber, change the arrangement of fiber tissue affecting its strength[2].
The role frequencies of power also affect the separation production and quality of fiber.
The cutting theory of micron flake wood fiber is a purely mechanical cutting method in the best cutting direction on purely physics[16].
Ultrastructure of the cell wall of unbeaten Norway spruce pulp fibre surfaces: implication for pulp and paper properties.
Online since: October 2015
Authors: Byung Young Moon, Byeong Soo Kim
Table 1 is shown with four controlled factors and process yield.
After the first trial, the factors affecting to the result were reconsidered and changed to increase separation capability.
Experimental factors and response variables.
If this experimental system is adopted, the recycling will be more valuable both to recycle carbon fiber and to recycle epoxy resin with CFRP recycling.The second method is to clean the recycled carbon fibers without any damage of the properties of carbon fibers as proposed by Jiang, et al. (2008).
The yield of the recycling CFRP was 95.4 wt.% with an alkali catalyst, but the mechanical properties of these fibers were 10% lower than those obtained without using an alkali catalyst (Piñero-Hernanz, et al., 2008a).
Online since: September 2020
Authors: Banjuraizah Johar, Tinesha Selvaraj, Shing Fhan Khor
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.
Online since: October 2017
Authors: Lubos Pazdera, Libor Topolář, Richard Dvořák
The effects of the various changes taking place in heated concrete are the alterations of its physical, thermal, and mechanical properties.
Important factors are also the rate of heating and the time of concrete exposure to high temperature.
The measured properties of thermally degraded concrete.
It can be presumed that higher value of amplitude indicates better mechanical properties of concrete thanks to better bond of the matrix.
Neville, Properties of concrete (5th edition), Prentice Hall, Edinburg Gate, 2011
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
Online since: June 2018
Authors: Wacław Brachaczek
This is when the discord between the properties of the plaster and of the substrate appears.
This article presents the results of the research on the impact of natural and synthetic polymers with different compositions on the selected parameters affecting monolithism of mortars.
In their research the authors studied the effect of methylcellulose on the mechanical properties of hardened cement paste.
Gartner, Effect of polymer modification of the paste-aggregate interface on the mechanical properties of concretes, Cement and Concrete Research 41(5) (2011) 459-466
Chung, Effect of methylcellulose admixture on the mechanical properties of cement, Cement and Concrete Research 26(4) (1996) 535-538
Online since: September 2013
Authors: Nik Normunira Mat Hassan, Anika Zafiah Mohd Rus
The relationships among the fiber properties such as fiber density, fiber diameter, and fibrous material layer were considered as a factor that influences the sound absorption property.
Knitted fabrics are mostly used for noise reduction in automotive area due to their superior drapability properties [4].
Seddeq, Factors Influencing Acoustic Performance of Sound Absorptive Materials, Australian Journal of Basic and Applied Sciences, 2009
Australian Journal of Asic And Applied Sciences vol 4, (2008) 96-101 [6] Anika Zafiah, M.R.: Effect of Titanium Dioxide on Material Properties for Renewable Rapeseed and Sunflower Polyurethane, International Journal of Integrated Engineering (Issues on Mechanical, Materials and Manufacturing Engineering), Vol.1 (2009), pp.15-22 [7] Anika Zafiah M.
Part 2; Thermal Degradation and Materials Properties, Prog React Kinetic and Mechanism, Science Reviews, Vol.34 (2009), pp.1-43 [10] D.V Parikh, Y.
Online since: January 2012
Authors: Jacek Gnilka, Piotr Czop, Grzegorz Wszołek, Dawid Jakubowski
Advanced simulation methods are required since the simplified analytical approach widely presented in the literature does not provide enough detailed first-principle insight to perform optimization of the geometrical properties of a valve system.
This section provides an introduction to the theory and triggering factors of aeration and cavitation in shock absorbers based on Dixon [7] and the analytical work conducted by the authors [9] and supported with experimental studies [8].
A hydro-mechanical valve system model usable from an engineering application perspective should be able to reproduce essential properties of a valve system during operation in a shock absorber.
The most import process affecting the quality of simulation is the preparation of the mesh.
Moreover, a high-damping lag [9] can influence the vehicle ride/handling properties including safety risk.
Online since: October 2018
Authors: A.V. Tyurin, N.Ya. Galimova, A.V. Belyaev
It was established that the surface quality was significantly affected by a new factor – angle of indenter contact with the machined surface, which had a damping effect on the machine-fixture-tool-workpiece system.
Construction of simplex S3 from simplex S0 in the problem with two factors Thus, the essence of simplex experimental design can be expressed by the three simple rules: 1.
It is necessary to range the factors in order to adjust their controllability. 4.
Guryanova, Mechanical properties of steel and alloys subjected to plastic deformation.
Journal of Mechanical Engineering Science. 9 (1967)
Online since: December 2009
Authors: T. Shahrabi, Taha Rostamzadeh, H. Shahverdi, A. Shanaghi
Most of the studies on particle reinforcement composites have been carried out to evaluate the physical, mechanical and tribological properties, but some studies have been conducted to evaluate the individual effects of corrosion and erosion [14].
However, this is dependent on phase combinations or other factors which form or occur at 520°C, and the nature of this event has not yet been fully understand.
A number of factors affected the corrosion behavior of nanocomposites, including nanocomposite composition, size and distribution of components.
Mitkov, The influence of SiC particles on the compressive properties of metal matrix composites.
Clark, K.T.Aust, U.Er, Mechanical properties of nickel silicon carbide nanocomposite.
Showing 10591 to 10600 of 25935 items