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Online since: July 2020
Authors: Tian Yi Ren, Rui Hong Wang, Tian Liang Wang
Figure 1: Sample preparation process Table 1: Preparation of Fe1.95-xNixP0.7Si0.3 (x = 0, 0.05, 0.1, 0.15) 12 g of each of the required raw materials Ingredient Serial number x=0 x=0.05 x=0.1 x=0.15 Fe 9400.9(mg) 9150.8(mg) 8901.2(mg) 8652.1(mg) Ni 0(mg) 254.1(mg) 507.8(mg) 760.9(mg) P 1871.7(mg) 1869.9(mg) 1868.1(mg) 1866.2(mg) Si 727.4(mg) 726.7(mg) 725.9(mg) 725.2(mg) Sample preparation.
Only the peaks of (001) and (002) can be observed in FIG. 8, which proves that the grains of the magnetized powder are oriented along the c axis.
In addition, no large number of impurities were detected.
Online since: November 2005
Authors: Jacques Merlin, Hélène Petitgand, Aurélie Hug-Amalric, Xavier Kleber
The discontinuous jumps of Bloch walls are due to their local pinning by different obstacles such as inclusions [7], precipitates [8], grain boundaries [9] or dislocations tangles [10].
When the number of these pinning obstacles increases, the Barkhausen noise amplitude increases too.
Discussion Globally, BNA is strongly dependent on the number of pinning obstacles met by Bloch walls.
Online since: April 2013
Authors: Thomas Pavlitschek, Markus Gretz, Johann Plank
The ESEM image also reveals that the particle packing is not always regular, and that defects and grain boundaries exist.
Yet, still a large number of latex particles have maintained their individual shape and did not coalesce into a latex film (Fig. 3d).
Chelation of cations on the surfaces of the latex results in an expanded hydrophilic shell which is mainly occupied by a large number of Ca2+ ions.
Online since: January 2016
Authors: Rustam Kaibyshev, Damir Tagirov
There is a linear dependence between the numbers of cycles to failure in the range of N up to 107 cycles (Fig. 2(b)).
Acknowledgements The financial support received from the Ministry of Education and Science, Russia, under Grant No. 14.578.21.0097 (ID number RFMEFI57814X0097) is gratefully acknowledged.
Lesuer, Grain refinement and superplastic behaviour of a modified 6061 aluminium alloy, Mater.
Online since: April 2018
Authors: Daynier Rolando Delgado Sobrino, Radovan Holubek, Peter Košťál, Jana Moravčíková
The microstructure manifests certain characteristics after a hot rolling process which are indicated by the linear grain arrangement of the ferrite.
After repeating the experiment a total number of 12 samples were obtained.
A C B 1 - M - 4 Sample denotation: 1-M-4 1 - number M - 50 % feed speed 4 - distance between the material surface and the nozzle [mm] A - Inlet position AWJM B - middle position AWJM C - Exit position AWJM C A B Fig. 3 Sample of the steel S235 obtained by water jet cutting.
Online since: February 2016
Authors: Ljudmila Shiganova, Vladislav A. Novikov, George Bichurov, Irina Kerson, Aleksandr P. Amosov
Recently much attention is paid to the application of spark plasma sintering (SPS), which is especially important for ceramics from nanopowders AlN and BN, as only this method allows to achieve the greatest density while maintaining a small grain size in ceramics [1, 6].
The number of halogen in halide salts was required to fully bind sodium released during the decomposition of sodium azide NaN3 to a neutral compound - sodium chloride or fluoride.
Calculation was made for various ratios of AlN and BN in the composite powder: xAlN-yBN, where x and y - the number of moles, which may take the values x = 1; 2; 3; 4 when y = 1 and y = 1; 2; 3; 4 when x = 1.
Online since: December 2007
Authors: Bo Zhao, Xun Sheng Zhu, Chuan Shao Liu, Feng Jiao
Because of the randomicity of abrasive grains by their sizes and shapes and the variation of lapping parameters, it is a complex manufacturing process with a great number of influencing factors that are nonlinear, interdependent and difficult to quantify, and the lapping quality of workpiece surface easily fluctuates and is impossible to control.
According to the experimental data, response surface model can be formulated as the following polynomial function: 0 1 1 1 n n n i i ij i j i i j f a a x a x x = = = = + + + ∑ ∑∑ L (1) where a0, ai and aij are tuning parameters and n is the number of model parameters.
Online since: May 2013
Authors: Le Le Wang, Ding Yi Yang, Ya Dong Liu
There are many factors affecting the sludge ceramsite’s performances, so the selection of an appropriate number of control factors and the arrangement of the test by orthogonal design [9] with the normalized orthogonal table should be carried out.
L9(34) Orthogonal design table Number Sludge proportion Fly ash/clay Preheating temperature[℃] Sintering temperature [℃] 1 70% 1:1 300 1050 2 70% 1:3 400 1000 3 70% 1:4 500 1100 4 75% 1:1 300 1050 5 75% 1:3 400 1000 6 75% 1:4 500 1100 7 80% 1:1 300 1050 8 80% 1:3 400 1000 9 80% 1:4 500 1100 5.2 The impact of sludge ratio on the ceramsite performance.
Municipal sludge sintering ceramics grain process and formula research.
Online since: August 2019
Authors: C. Jairaj, M.T. Prathap Kumar, H. Muralidhara
Over the years, number of methods have been developed for soil stabilization in particular and ground improvement in general [3,4,5].
Table 2 Properties of Bio-enzyme Used in the Study Properties Values Boiling point 2120F Specific gravity 1.000 to 1.090 Evaporation rate Same as water Solubility in water Complete Appearance /Odour Brown liquid, On -Obnoxious Melting point Liquid pH value 4.30 to 4.60 Methodology The physical properties like moisture content, specific gravity of fine grained BC soil was obtained as per IS:2720 (part.
The strength gained is 1.7 times that of BC soil alone. 5) With the help of SEM test we can observe that the maximum number of voids has been removed and good compaction with minimum comp active effort at 50ml/m3 Bio-enzyme and 3% of lime was obtained. 6) Compaction characteristics of BC soil addition with different percentage of lime and Bio-enzymes, results coupled with XRD and SEM study conclusively shows that beneficial effect of the use of treatment of Bio-enzyme, lime in terms of increase in MDU and reduction in corresponding OMC.
Online since: January 2010
Authors: Michael Tatoulian, A. Valt, Farzaneh Arefi-Khonsari, Jean Pascal Borra
Here, the mass deposited per surface unit is controlled by the substrate velocity and the number of passages under the spray, at constant flow-rate and distance between the substrate and the spraying nozzle defining the deposition spot diameter on the substrate.
(a) 1 µm 1 mL/h 10 µm coating PE substrate (b) 1 µm 10 µm thick PS Substrate Coating surface Figure 4 : SEM pictures of (a) polyacid deposited on PE at 1 mL/h upper and side view ; (b) polyether deposited on PS at 0.5 mL/h upper and side view The mass deposited per surface unit is controlled by the liquid flow rate, the substrate velocity and the number of passages under the spray.
Besides, for very small deposited mass per surface unit, individual drops can be deposited for surface processing with particular shapes of agglomerated polymer grains formed by polymerization within each drop that can be of interest to increase the specific exchange surface for sensors.
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