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Online since: August 2015
Authors: Jitladda Sakdapipanich, Adun Nimpaiboon, Supinya Nijpanich
The functionalized SBR and skim latex were characterized by determination of weight-average molecular-weight (Mw) and number-average molecular-weight (Mn) using gel permeation chromatography (GPC).
The average grain diameter, roughness and the thickness of film obtained from AFM (Fig. 1(b)) were about 20 nm, 2 nm and 200-400 nm, respectively.
Online since: February 2016
Authors: Michal Přinosil
., Nové Strašecí) and fine grained quartz sand ST2 with maximum particle size of 0.1 mm and STJ25 with maximum particle size of 0.3 mm (both manufactured by Sklopísek Střeleč, a.s.).
The difference in load ∆P was calculated for all the recorded data during the experiment between points B and C (Fig. 3) as:∆P = ∑np i=1 |PB−C,teor,i − PB−C,exp,i| np , (6) where np was number of the recorded data between points B and C.
Online since: August 2007
Authors: Nelli N. Alexandrova, Paulo M.M. Vila Real
[2] analyzed stress distributions in elastically anisotropic rotating disks (both single ones and a number of concentric rings forming a unit) under the action of centrifugal forces, temperature gradient and misfit conditions.
From the physical point of view, it is valid, for example, when during manufacture grains are directionally solidified in the radial direction or when metal-matrix composites are reinforced with continuous fibers wrapped around the annulus [7, 8].
Online since: June 2008
Authors: A. Di Paola, M. Addamo, M. Bellardita, E. García-López, G. Marcì, L. Palmisano
As shown in Table 1, although the various films were deposited under the same experimental conditions (type of precursor, number of dip coating steps, kind of glass support, calcination temperature), the thicknesses resulted very different.
The average grain diameter was about 70 nm, in excellent agreement with the SEM results.
Online since: January 2005
Authors: E. Sarath K. Menon, Madan G. Mendiratta
An Nb3Si alloy containing 20at% Ti contained Nb5Si3 phase in the core of the Nb3Si grains.
Cyclic oxidation experiments conducted on a large number of alloys can be classified together and Figures 5 illustrates some examples.
Online since: December 2009
Authors: Ilhem Kriba, A. Djebaili
Plasma Arc Process Fig1: Plasma spray principle Conventional coating properties depend on three sub-systems on which the operator can exercise some control: 1- Plasma formation and its interaction with its environment, 2- Powder and its injection with the resulting particle parameters (temperature, diameter, velocity, number flux) at impact, 3- Splat formation, splat layering and coating formation. 2-1.
Other key features of thermal spray deposits are their generally very fine grain structures and columnar orientation (Fig.5).
Online since: July 2011
Authors: Shuo Zhang, Geng Xin, Yang Yun, Zou Bin, Li Ang Jian, Chun Lan Xue
There are a number of video editing softwares at present, e.g.
For example, in experiment atmospheric distillation, 2 to 3 grain of zeolite must be but into the distilling flask beforehand in order to provide "vaporization center" for boiling of the liquid and prevent the occurrence of "sudden boiling"[3].
Online since: March 2010
Authors: Zhu Feng Yue, Kun Rong Jia
Even in the heat-affected zone, there are different metallurgical structures (e.g. fine and coarse grained regions).
Material properties In FE modeling, a weld is usually assumed to consist of a number of distinct material zones, each of which has constant material properties.
Online since: December 2010
Authors: Eugene P. Yelsukov, O.M. Nemtsova, D.A. Petrov, Konstantin N. Rozanov, A.A. Chulkina, A.N. Maratkanova, S.F. Lomayeva
A number of techniques for producing nanocomposites are available, each having both advantages and drawbacks.
After 1-h milling, the grain texture appears in α-Fe, which is evidenced by the deviation of the relative intensity ratio of (110), (200) and (211) reflections in the diffraction patterns from the ratio calculated for an isotropic α-Fe powder.
Online since: July 2006
Authors: Julathep Kajornchaiyakul, Wattanachai Prukkanon, Supparerk Boontein, Chaowalit Limmaneevichitr, Kongkiat Puparatanapong
In addition, smaller SDAS was proved to increase mechanical properties, i.e. tensile strength and ductility, of castings in higher degree than that of finer grain size [1].
The scholarship number TG-33-20-864D for Mr.Supparerk Boontein from Thailand Graduate Institute of Science and Technology (TGIST) is greatly appreciated.
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