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Structure.
Microscopic observations of the structure of the coating and the cast in the initial state and after completion of temperature X-ray measurements were made using an Axiovert microscope.
The average value of thermal expansion coefficient calculated as the weighted average, taking into account the multiplicity of particular planes in Al(Si) crystallographic structure was equal 20.5·10 -6 K -1 for the coating and 18.7·10 -6 K -1 for the cast.
The microscopic examination revealed that changes had occurred in their structure during soaking.
References [1] Z.Poniewierski: Crystallization, structure and properties of silumins (WNT, Warszawa 1989), in Polish [2] J.Zheng, W-j.Song, MA Guan and Z-h.Jia: Transaction of Nonferrous Metals Society of China, Vol. 17 (2007), p. 326 [3] I.M.Abdulagatov, Zh.Kh.Murlieva, D.K.Palchaev, K.K.Kazbekov and M.M.Maangalov: J.of Physics and Chemistry of Solids Vol. 68 (2007), p. 1713 [4] M.Dudyk: Archive Foundry R.6 nr 22 (2006), p. 164 [5] R.Władysiak: Archive Foundry R.4 nr 14 (2004), p. 550 [6] A.Bergamin, G.Cavagnero, G.Mana and G.Zosi: J.of Appl.Phys. 82 (1997), p. 5396 [7] B.Siemińska-Jankowska: J.of KONES Intern.

Swirling Cavitation Degradation and Simulation Analysis There are many types of structure for swirling formation in theory.
If simple structure and easy manufacturing are taken into account, the practical and applied structure for swirling can be abstracted as shown in Fig. 1 and its transformation.
In order to meet the needs of dimension design for large flow rate device in industrial application, CFD software is still used to verify that the structure of mini-device mentioned above is valid for large flow rate device because the great dimensional scaled model experiment is very difficult to be carried on under the current experiment condition limited in laboratory.
Fig. 3 Sketch of test unit Fig. 4 Simulation pressure of large-scale model Conclusion Based on the principle of swirling hydrodynamic cavitation, the model of wastewater treatment device with simple structure and manufacturability has been created.
Guo, et al: Progress in Chemistry, Vol. 17 (2005), p.549 [11] K.

This structure not only narrows the temperature window but has also influences microstructure development.
The evolution of the microstructure during hot working is sensitive to the process parameters; temperature, strain and strain rate, but also the inherited material condition (chemistry and starting microstructure).
The integrated model-based control systems for aluminium alloys are very similar to steels both in terms of structure and implementation.
The high stacking fault energy of the fcc structure controls the microstructure response to deformation which has led to continuous dynamic recrystallisation or extended dynamic recovery being attributed.
The hcp crystal structure in magnesium reduces the temperature window and possible process variables further, and in combination with texture controls the available deformation and restoration mechanisms.

Sodium silicate was obtained from Shenyang Fangda Chemistry which module was 2.7 and the content of Na2O was 9.07%, SiO2 was 23.65%.
This can be explained by that Si and Al exist in the system in forms of [SiO4] and [AlO4]which constitute the basic structure.
Compact structure is developed and pores in the structure are diminished with increasing [SiO4].
However, too much SiO4 shows negative effect on the development of the structure for it will restrain the solubility of metakaolin.
The mobility of slurry would be reduced and it is difficult to mould when n(H2O)/n(Na2O)<26, workability of slurry and dense structure can be get at the point of n(H2O)/n(Na2O)=28 while The minimum corrosion weightless rate and carbonation depth 0.14% and 1.06mm respectively.

The chemical structure of cationic polyacylamide is shown in Fig. 1.
Fig.1 The chemical structure of cationic polyacylamide Jar test.
In order to determine the structure of cationic polyacrylamide obtained, the Fourier-transform infrared (FTIR) spectroscopy of acrylamide(I), DAC(II) and cationic polyacrylamide(III) were seen in Fig.2.
It demonstrated that the structure of cationic polyacrylamide was the same as expected.
Its structure was characterized with FTIR and 1H NMR spectrum, the results demonstrated that the acrylamide and DAC had taken place copolymerization.

Preparation and Photocatalytic Properties of Loading Nano-TiO2 Modified PHBV Film by Solution Casting Ting Yan and Haifeng Chen* Department of Chemistry, Huzhou Teachers College *headder@hutc.zj.cn Keywords: TiO2, PHBV, Solution Casting, Hydrothermal Synthesis, TMA, TBA Abstract.
Recently, the loading materials including graphene[1-2], carbon nanotube[3-4], the magnetic particles[5-6], alginate[7], ion exchange membrane[8], which can be recyclable; the structure of above loading materials including the core-shell structure , the sandwich structure and the heterostructure.
In short, after enhancing the catalytic activity, an ideal catalyst carrier should have a three-dimension and microspores structure, while release the surface radicals of TiO2, it would promote the absorption and entrance of organic pollutant molecules.
However, PHBV has the biodegradability, good biocompatibility, bio-absorptive and high melting point, besides, it showes the high optical transparent, along with gap structure, which is beneficial for TiO2's loading and recycling.

Thermal Properties of PVA-Fiber Reinforced Cement Composites at High Temperatures Eva Vejmelková1,a and Robert Černý2,b Department of Materials Engineering and Chemistry, Faculty of Civil Engineering, Czech Technical University in Prague, Thákurova 7, 16629 Prague 6, Czech Republic acernyr@fsv.cvut.cz, beva.vejmelkova@fsv.cvut.cz Keywords: fiber reinforced cement composites, polyvinyl alcohol, high temperatures, thermal properties.
The main motivation of this research is the fact that in the determination of fire resistance of building structures, the time period when the structure is capable of performing its heat-insulating function and protecting the other parts of the building from a fast temperature increase is one of the most important parameters.
On the other hand, the influence of thermal properties of the fire-protecting structures is also very significant.
In most situations in real building structures when high temperatures appear, there are also high temperature gradients.
In most situations in real building structures when high temperatures appear, the thermal decomposition processes take place and there are also high temperature gradients.

Jun et al. [8] reported that they have synthesized titanium nitride/carbon composite with a 2D hexagonal pore structure using SBA-15ht as a template.
The detailed structure was provided by TEM images.
Structure, wettability and photocatalytic activity of CO2 laser sintered TiO2/multi-walled carbon nanotube coatings[J].
Journal of Solid State Chemistry,2012,196:435-440
Synthesis of hollow Fe3O4 at ZnO at anatase TiO2 core-shell structured spheres[J].

In recent years many researchers have focused on bimetallic which shows apparently a higher photocatalytic activity than the single metal doped TiO2, because the second metal can change the electronic properties and the formation of active surface structures {Ou, 2008 #677}[3].
Crystalline Structures (XRD) and BET Surface Areas In the present work, the phase structure and the crystal size of the synthesized photocatalysts were determined by using XRD, (Bruker D8 Advance) with Cu Kα radiation 40 kV and 40 mA at 2θ angles from 20° to 80°, with a scan speed of 4°C/min.
Materials Chemistry and Physics, 2007. 104: p. 554-559
Navrotsky, Synthesis, Structure Determination, and Aqueous Durability of Cs2ZrSi3O9.
Abe, Preparation of Highly Crystalline TiO2 Nanostructures by Acid-assisted Hydrothermal Treatment of Hexagonal-structured Nanocrystalline Titania/Cetyltrimethyammonium Bromide Nanoskeleton.

This is due to the properties of activated carbons which have large active surface area that can provide high adsorption capacity, well developed porous structures and good mechanical properties [1-3].
Meanwhile, the occurrence of broad peaks around 26o and 43o showed signs of formation of crystalline carbonaceous structure, resulting in better layer alignment [10].
The main characteristic and pore structure of the sample is shown in Table 2.
This is due to at high temperature, fragile structure was generated, resulting in increased pore size and BET surface area.
This activated carbon display type I isotherms and according to International Union of Pure and Applied Chemistry (IUPAC) classification, it indicates that the activated carbon is microporous.