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Weigh 0.05g nZVI to five small jars of 250mL glass reactor (numbered 1,2,3,4, and 5) in different concentrations (0.1mg / L, 0.2mg / L, 0.3 mg / L, 0.5mg / L, 1mg / L) of the chloroform solution and placed in water bath at 25oC oscillator reaction conditions, and measuring the reaction concentrations of chloroform in certain time Results and Discussion XRD and TEM analysis.
XRD results showed that the scanning diffraction angles (2θ) at 5~70°, present nZVI diffraction peaks at 2θ = 44.8 and 65.06°, corresponding to the standard body-centered cubic lattice iron diffraction peak [8-9]; grain’s thinning caused a certain width of diffraction peaks, but un-crystalline state’s broadening peak, which indicated that it was small size microlite, the broaden of diffraction peak broadening is related to the size of the microlite[10].
Table 1 Reaction kinetics and parameters of chloroform dechlorination under different initial chloroform concentration Reactor number Initial concentration of chloroform (μg/L) Kinetic equations The correlation coefficient R2 The apparent reaction rate constant K (h-1) A 100 R2=-0.1488x-1.3799 0.9581 0.1488 B 200 R2=-0.0478x-1.3039 0.6342 0.0478 C 300 R2=-0.0419x-1.0347 0.5712 0.0419 D 500 R2=-0.0306x-0.8715 0.7111 0.0306 E 1000 R2=-0.0250x-0.7982 0.6197 0.0250 Proposed chloroform dechlorination reactions mechanism.
The surface of the coatings began to dissolve after a certain time, and as a result, nZVI began to expose slowly and reacted with oxygen in the solution as follows[12]: Coated +Fe0→coated +nZVI (release) (1) 2Fe0 +4H++ O2→2Fe2+ +2H2O(acidic solution) (2) Fe0 +2H2O →Fe2++ H2 +2OH- (3) Since nZVI has large surface area and can strongly absorb chloroform, the other part of nZVI may absorb alarge number of chloroform on the surface of nZVI.

Introduction In the oxygen-converter shop of PAO «Magnitogorskiy metallurgicheskiy kombinat» the tube steel is cast on a slab curvilinear CCM with a vertical section of the company "SMS-Demag" having the following technical characteristics: Type of CCMCurvilinear with vertical section Number of strands, pcs. 1 Annual project productivity, million tons of slabs 1.65 Dimensions of cast slabs (mm): thickness 190, 250, 300 width 1400 ... 2700 length 4100 ... 12000 or 2500 ... 4100 Metallurgical length of the machine, m 34.2 Length of vertical section, m about 2.7 The main radius of curvature of the machine, m 11 Max withdrawal speed (by mechanisms), m / min 2.5 Ladle capacity, t 370 Capacity of intermediate ladle, t 50 Height of copper walls of crystallizer, mm 900 Oscillation frequency of the crystallizer, osc / min up to 300 Amplitude of crystallizer oscillation, mm up to 3.5 Number of segments in the ZVO, pcs. 15 Mark of pouring platform, m about 13.8
Scheme of the service channel of a single-slab CCM: 1 ... 15 - segment numbers; I - vertical section; II - section of the bend; III - arc section; IV - section of extension; V - horizontal section The secondary cooling zone has 15 segments.
The formation of asymmetry occurs as a result of the settling of large equiaxed grains formed in the curved well of a liquid metal by a volume mechanism to the boundary of the lower freeze line.

When the interface is composed of the same solids, the interface is also called as grain boundary and the corresponding interface energy is named as grain boundary energy.
It was thought that the free energy of the system depends not only on γsl but also on the energy of the grain boundary (which varies with the relative orientation of the grains), a scattering of γsl0 could thus be expected due to the random orientation of the neighboring grain [16].
However, for high angle grain boundary, γss0 is almost a constant.
Here, the considered grain boundary energy is the high angle one.
For the grain boundaries, even if when D→D0, γss(D)/γss0 ≈ 75% while γsl(D)/γsl0 = 0.

Through the variation of the amplitude and number of lamellae per inch, the open porosity and orientation of the pore channels could be tailored in a wide range.
Fig. 2: Novel method for producing 3D SiSiC: step 1: stacking, step 2: cutting, step 3: turning, step 4: joining + optional stabilisation with carbon sheets, step 5: schematic setup zone A + C 2 4 1 3 5 Si-infiltration zone A zone C zone C The microstructure of 3D SiSiC is characterized by sheet and lamellae thicknesses of about 1 mm and a coarse grained microstructure.
These structures as well as the structure with the mixed angle (V6-70°/20°) could not be used for porous burners, because there was non-sufficient flame propagation in the porous structure. 0 20000 40000 60000 80000 100000 120000 V1-30 V2-50 V3-60 V4-70 V5-80 V6-70/20 No. of thermoacustics counts 3rd cooling 3rd firing 2nd cooling 2nd firing 1st cooling 1st firing Fig. 5: Thermoacustics counts during the thermal cycling (3 cycles) of selected 3D SiSiC ceramic specimens It can be seen in fig. 5 that the total number of thermoacoustics counts varied whereas most of the counts (70-91 %) could be detected during the first firing of the components and then sharply decrease in the next cycles.
During the cooling down from the maximum temperature only a small number of counts could be detected.
A correlation of the number of thermoacoustics counts and determined properties e.g. angle variation could not be found.

Using such techniques it is shown that such models are tractable for modest values of the Lewis number (ratio of thermal to solutal diffusivities).
Remnants of these dendritic microstructures often survive subsequent processing operations, such as rolling and forging, and the length scales established by the dendrite can influence not only the final grain size but also micro- and hence macro-segregation patterns.
The use of PARAMESH imposes a number of constraints upon our choice of finite difference stencil.
Consequently, validation against directly comparable data set is only possible over a relatively limited range of Lewis numbers, typically Le » 40.
In 2-dimensions solutions for Lewis number of O(10,000), which is physically realistic for most liquid metals, can be routinely undertaken using serial execution [[] J.

In this paper, irregular nickel particles were used having a grain size in the 2-90 µm range evaluated using scanning electron microscopy and laser scattering particle size analyzer.
An important number of studies and researches focus on the obtaining of ceramic membranes from alumina and silica powders.
In the SEM images (figure 3) the presence of a small number of defects is seen.
Acknowledgements This work was supported by CNCSIS – UEFISCSU, project number PNII – IDEI 749/2009.

The convergence behavior of the two algorithms is studied and compared regarding the number of time steps.
In order to compare the two time integration algorithms a study of convergence regarding the number of time steps was carried out.
Fig. 3: Convergence behavior for the two time integration algorithms with respect to the number of time steps.
Moreover it showed up, that already for a small number of time steps satisfying results were obtained for both solution algorithms.
A gradient plasticity grain boundary yield theory.

Analysis of Magnetron-Deposited Titanium Oxynitride Coatings by Scanning Electron Microscopy and Raman Scattering ARYSHEVA Galina V.а, IVANOVA Nina M.b, KONISHCHEV Maksim E.c, PUSTOVALOVA Alla A.d, SYPCHENKO Vladimidr S.e National Research Tomsk Polytechnic University, 30, Lenina avenue, Tomsk, 634050, Russia aallli@sibmail.com, bivanovanina91@mail.ru, cmkonishchev@gmail.com, dallusik888@mail.ru, esypchenko@tpu.ru Keywords: titanium oxide and oxynitride, biocompatible coatings, magnetron sputtering, morphology, grain size, Raman scattering Abstract.
Classification of the samples by modes TiNxOy deposition of coatings on a substrate of stainless steel 316L Group number Coating Deposition time coverage [min] Bias voltage [V] Ratio of the partial pressure of gases p(O2)/p(N2) 1 TiO2 180 0 - 2 TiNxOy 90 0 1/1 3 TiNxOy 90 0 1/3 4 TiO2 180 -100 - 5 TiNxOy 90 -100 1/1 6 TiNxOy 90 -100 1/3 For scanning electron microscopy we used a scanning electron microscope type ESEM Quanta 400 FEG from FEI, equipped with energy-dispersive X-ray analysis (EDX; EDS analysis system Genesis 4000), operating in high vacuum.

After experiencing high temperatures, the internal fibers of the polypropylene fiber reinforced concrete melted and left a large number of voids in it, thereby deteriorating the mechanical properties of concrete.
Continuous-grading broken stones with a maximum nominal grain size of 20mm were used as coarse aggregate.

If the ratio of the linear growth of crystal nucleus and the number of nucleation in unit time and volume don’t change with overheating when the amorphous alloys crystallize over the critical crystallization temperature T0, in the process of phase transition, growth and diffusion mechanism are obeyed.
(1) G: linear growth rate of crystal nucleus; N: the number of nucleation in unit time and volume; : the amount of formed grain; : heating rate; t: overheating- difference between critical equilibrium phase transition temperature and actual phase transition temperature.
Fig.2 DSC curves of imported amorphous ribbons Fig.3 DSC curves of domestic amorphous ribbons In the process of diffusible solid phase transition, both the linear growth rate of crystal nucleus and the number of nucleation increase with the temperature.