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The grains directly determine length scale of porosity in the final structure.
Moreover, corroded in 5mol/L H2SO4, the inside layered structures clearly observed could either be caused by cracks propagating into the structure during the dealloying process, or by post-dealloying fracturing.
The face centered cubic structure is determines by X-ray diffraction.
The layer structures are formed as the channels evolve in one direction of homogenous density.
“Inhibition of dezincification of brass”, Chinese Journal of Applied Chemistry.

Enrichment of Indonesian Low Rank Coal‘S Surface Oxygen Compounds (SOCs) Using Hydrogen Peroxide and Its Adsorptive Properties Galuh Yuliani*), Imas Noviyana, Agus Setiabudi Chemistry Education Department, Indonesia University of Education, Jl.
This indicated a more severe organic leaching; presumably lignin compounds predominated from the coal structure.
This was probably due to the change in the coals’ surface structure as a result of oxidation.
The oxidation of the coal using hydrogen peroxide solution caused the organic and inorganic leaching and presumbably alter the surface structure of the coal.
Goyal: Activated carbon and its surface structure.

Treatment at high temperature, respectively 1050°C/1h (fig.2c), makes the structure with very big grains, each of them having inside many lamellar distribution of a and b solid solution.
Also on in the correlation with structure of the experimental alloys the best corrosion resistance is given either by the fine lamellar structures is obtain for TiMo0.3Ni0.7 alloy at 1050°C or by a fine distribution of two solid state a and b respectively as is given for TiAl5Fe2V2Mo1.5 in non-treated state.
The TiMo0.3Ni0.7 the best corrosion resistance is for structure with fine mixture lamellar respectively treated at 1050°C in comparison with the other structure is orientated β solid solution islands.
So, applying a heat treatment at high temperature, about 1100°C may determine a good homogenization of the cast structure of dental cobalt alloys, the dendrites become finer and the carbide precipitations are fine and well dispersed in the matrix.
Pignatello R.,- Biomaterials- Physics and Chemistry, Publisher: InTech 2011

Attempts to improve the ductility of the alloys by chemistry modifications or microstructural control have shown limited success [3-4].
This implies that the mechanically activated powders possess essentially the crystal structure of alpha Ti and Al, which has very similar features to its SAED pattern, that is, during the mechanical activation process the Ti and A1 structure is maintained in situ.
Conclusions a) The spark plasma synthesis can be performed on nanoscale particles of reactant materials to achieve a dense reaction product that substantially retains the ultrafine structure of the starting materials.
b) The grain growth and hence the loss of the nanocrystalline structure, which would normally be expected to occur after product formation, are minimized.
d) During the mechanical activation process the Ti and A1 structure is maintained in situ.

There is mainly micro pore, a little middle pore and almost no macro pore on its surface, the micro pore structure can be decorated bigger, the adsorption ability of ACF is related to its physical structure and surface chemical properties closely, so we can control its pore size distribution and surface structures by activation technology and surface modification treatment [2-5].
ACF has greater adsorption capacity and faster adsorption dynamics characteristics than granular activated carbon (GAC), which have been widely used in fields of Chemistry and Chemical Industry, catalyst carrier, health and medicine and environmental protection [6].
Research results also indicate that activation and modification can change physical structure and chemical properties of ACF in different extent and change its desulphurization performance further more [7-10].
This may due to the copper crystals insert into the irregular carbon layer and reaction with the carbon in the material inside and generate developed pore structure.
It resulting the damage of graphite layer structure and weakening of the peak [13].

Therefore, it is widely applied at various fields, such as aviation, space, military, car, structure engineering, electronics and electrics, petrochemical [3].
There are a large number of aromatic rings in molecular structure, which is hard to move and makes hydrogen bond among molecular chains very weak.
Moreover, the plasma reaction only happens on the surface of the fiber, which will not damage internal structure of fiber or influence the whole performance of the fiber.
The pressure of discharge gas in the reaction chamber was pumped to 10 Pa and the power of plasma treatment was 200 W (Key Labortory of Plasma Chemistry and Advanced Materials of Hubei Province，Wuhan Institute of Technology).
Development of Thin-walled Fiber—Reinforced Structures for Medical Applications[J].

Usually, the photocatalytic activity of the catalyst can be influenced strongly by the crystal structure, particle size, dispersibility and the hydroxyl density on the surface.
The crystal structures of the ZnO-SnO2 nanocomposites prepared by different calcination temperature are shown in Fig. 1.
It has been showed that the ZnO-SnO2 nanorods displayed enhanced photocatalytic activity in the degradation of MB, which could be attributed to its unique morphology and structure, and the doped SnO2.
Montazer: A review on the application of inorganic nano-structured materials in the modification of textiles: Focus on anti-microbial properties, Colloid.
Zhu: Network structured SnO2/ZnO heterojunction nanocatalyst with high photocatalytic activity.

These reports indicated that the improvement was attributed to the nano-ordered structure, which was thought to provide diffusion paths for hydrogen penetration.
Fig.1 shows that the thickness of Mg and Al films was uniformly decreased, without breaking its laminar structure by the super lamination process.
The Mg-Al super laminate composite had micrometer-ordered laminar structure.
Mg-Al binary super laminate composites which have nanometer-orderd laminate structure were obtained by super lamination technique.
Wu Materials Chemistry and physics 94 (2005) 69 [11] P.

Introduction Direct ethanol fuel cell (DEFC) as a new generation of clean energy has been paid more attentions because of several advantages, such as high specific energy, simple structure and so on.
The design of anode catalyst layer structure of MEA for DFAFC [J].
Novel electrode structure for DMFC operated with liquid method [J].
Structure and performance of MCMB sinters doped with different TiC granularities.
Platinum deposition on carbon nanotubes via chemical modification [J].Chemistry of Materials, 1998, 10:718～722

ABS Fabrics Chemically Plated by Cu/Ni-P as Electromagnetic Shielding Material Chengda Yu1,2,a,*, Qibin Deng2, Ping Li1, b,*, Mingcun Wang3,c,*, Yongfeng Wang2 1Beijing Institute of Technology, 5 Zhongguancun South Avenue, Haidian, Beijing, 100081 2Beijing Institute of Special Electromechanical Technology, 1 Beiyuan Road, Chaoyang, Beijing 100012, China 3 School of Chemistry and Environment, Beihang University, 37 Xueyuan Road, Haidian, Beijing 100191, China a shandong18hebei@sina.com, b liping85@bit.edu.cn, c mcwang@buaa.edu.cn, * correspondence Authors Keywords: electromagnetic shielding; ABS resin; fabric; chemical plating; Cu/Ni-P Abstract.
Fig. 1 The molecular structure of ABS plastic Fig. 2 The structure of ABS/Cu/Ni-P fabric composite As shown in Figure 2, the structure of the flexible electromagnetic shielding material was a symmetrical composite.
In order to acquire ideal shielding effect at low and high frequencies simultaneously, it is designed to assemble the Cu coat and Ni-P coat to form a laminate composite structure.
Evidenced by the shielding effect analysis, the fabric structures of plain, drill and satin styles had tiny influence on the shielding effect of the final composite material.
Based on the results of various ABS/Cu/Ni-P with varying metals depths, the optimum structure was determined: ABS plain fabric 80±5μm; Cu 1.5μm (double sides 3μm); Ni-P 1.0μm (double sides 2μm).