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Online since: June 2012
Authors: Ya Ran Niu, Xue Bin Zheng, You Tao Xie
Therefore, an increasing number of silicon- containing materials are being studied for applications in biomedical materials and devices.
Experimental procedure Commercially available silicon powders having a grain size of 10-50 µm and purity of 99.0% were used as the feedstock.
Experimental procedure Commercially available silicon powders having a grain size of 10-50 µm and purity of 99.0% were used as the feedstock.
Online since: December 2013
Authors: Viktor Konashkov, Arkadi Povodator, Vladimir Tsepelev, Vladimir V. Vyukhin, Ann Latipova
As a result of the research made on a large number of steels and alloys, the authors mentioned came to the conclusion that immediately after casting, liquid metals constituted essentially a non-homogeneous unbalanced system.
The melt casting at temperatures lower than 1550 оС ( the low-temperature melt state) contributes to the formation of the ribbon’s rough free-side surface; it looks like being sprinkled with crushed grains (Fig. 3, a).
The melt casting at temperatures lower than 1550 оС ( the low-temperature melt state) contributes to the formation of the ribbon’s rough free-side surface; it looks like being sprinkled with crushed grains (Fig. 3, a).
Online since: June 2015
Authors: Sook Keng Chang, Zulkarnain Zainal, Chew Ping Chia, Yusran Sulaiman
This technique has a better advantage over normal potentiostatic electrodeposition in terms of its ability to produce samples with a better morphology, crack free, uniform and finely grain size as well as better porosity and well adherent [6].
As the crystalline size becomes smaller, the number of sample per unit area is higher and therefore under illumination, more electron hole pairs can be produced per unit area for the redox reaction at electrode electrolyte interface [12].
As the crystalline size becomes smaller, the number of sample per unit area is higher and therefore under illumination, more electron hole pairs can be produced per unit area for the redox reaction at electrode electrolyte interface [12].
Online since: November 2014
Authors: J. Strnad, M. Strnadová, Z. Strnad, T. Kučera, A. Nežiková, M.D. Cevallos Lecaro
To meet this requirement, (P) should be used in particle size, allowing optimum choice depending on the size and volume of the treated defect.
0,3-0,6 0,6-1 1-2 2-3 3-6 mm
Fig. 3 The grain size of the augmentation material PORESORB®-TCP in the range of 0.3-6 mm
Osteogenic activity of the PORESORB®-TCP in vitro
The results of the in vitro experiments confirmed the osseoinductive properties of TCP (P) providing that there are three cooperating components of the assay system.
Two independent reviewers assessed each radiograph, by means of the level of resorption of the filling material and trabeculation of the defect, by absolute numbers in cm3 and by the relative values in percentage terms (including demission of radiolucency around the filling material, growth of trabeculae and their joining with the filling material used).
Two independent reviewers assessed each radiograph, by means of the level of resorption of the filling material and trabeculation of the defect, by absolute numbers in cm3 and by the relative values in percentage terms (including demission of radiolucency around the filling material, growth of trabeculae and their joining with the filling material used).
Online since: October 2013
Authors: Andrzej Romanski, Wiktoria Ratuszek, Janusz Konstanty
Table 3 As-consolidated densities and Knoop hardness numbers
of the experimental alloys (1)
Material
Density [g/cm3]
KH1
polished surface
abraded surface
Fe-Ni
7.91-7.96
271 ± 33
370 ± 34
Fe-Mn
7.71-7.72
287 ± 18
378 ± 44
(1) scatter intervals estimated at 90% confidence level
Table 4 Chemical analysis, resistance to abrasion and phase compositions
of the experimental alloys
Material
Content of
Abrasive Index Ai (1) [mm/20m]
Percentage of austenite [V(gFe)] (2)
oxygen [wt.%]
carbon [wt.%]
As-polished condition
As-ground condition
Fe-Ni
0.48
0.60
22.0 ± 3.1
82.6
11.7
Fe-Mn
0.66
0.64
22.1 ± 3.9
64.2
59.4
Co-20%WC
-
-
33.6 ± 8.2
-
-
(1) scatter intervals estimated at 90% confidence level
(2) estimated assuming that V(aFe) + V(gFe) = 100% (no account taken of other phases)
Fig 3.
As seen in Figs 3 and 4 both alloys display non-uniform, fine-grained microstructure.
As seen in Figs 3 and 4 both alloys display non-uniform, fine-grained microstructure.
Online since: December 2012
Authors: Ye Sun, Li Hao Han, Ren Chen, Li Na Sun, Guo Xi Wu
In the experiment, the paraffin and the corn grain with the diameter 3 mm are respectively used to simulate DRI, coke and lump coal.
The discharge rate is determined based on the practical melting rate; the blast volume is decided by the Froude number [9,10]; the blast temperature is obtained based on the mass balance and the heat balance.
The discharge rate is determined based on the practical melting rate; the blast volume is decided by the Froude number [9,10]; the blast temperature is obtained based on the mass balance and the heat balance.
Online since: May 2014
Authors: Ying Wang
Adjustable and the ratio is each kind of aesthetic to the show to two different contradiction movement state grain structure at.
For example, the word of modification, the left and the right should be out of the empty white certain in a page, the word line number is generally not exceed 10 lines, each line in the 25 character in the title character, generally in 40 or 44, it shall not be less than the 20 or more than 32.
For example, the word of modification, the left and the right should be out of the empty white certain in a page, the word line number is generally not exceed 10 lines, each line in the 25 character in the title character, generally in 40 or 44, it shall not be less than the 20 or more than 32.
Online since: April 2015
Authors: David Manas, Martin Ovsik, Kamil Kyas, Miroslav Manas, Vojtech Senkerik, Adam Skrobak, Michal Stanek
The injection molding process is a cyclical process, each cycle comprises several operations: feeding, melting and homogenization of polymer grains inside the plasticizing cylinder mold closing, injection under pressure of melt in mold's cavities and cooling or heating of polymer inside the mold, mold opening and ejection of molded piece.
With large number of layers time of computing increase rapidly on the other hand the results are more accurate.
With large number of layers time of computing increase rapidly on the other hand the results are more accurate.