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The influence of synthesized modifying supplement on the structure formation of lime compositions was studied.
Image of the structure supplement based on synthesized calcium hydrosilicates, synthesized of diatomite x3000.
Smolegovsky, The development of ideas about the structure of silicates, 1979, 231
Prebus, Crystal Chemistry of Calcium Silicates: Morpholjdy and Other Phases, J.
Mori The Structure and Polytypes of a-CaSi03: ActaCryst, 37 (1981) 1010-1017.

A number of nano-scale silicon-based structures had been found to exhibit light-emitting, e.g. porous silicon (PS) [1,2], Si/SiO2 multilayers [3], Si+ and Ge + implanted SiO2 [4,5]…, etc.
It hence follows that the graphitic phase of the low porosity samples is more random in its structure.
It should be noted that the π* peak exhibits fine structures depending on the fabrication temperature.
Another possibility is that the interfacial structures between silicon oxide and graphitic carbon act as a important role.
Physics and Chemistry and Applications of Nanostructures, 2007

Feynman during his famous 1959 lecture “There’s Plenty of Room at the Bottom, an invitation to enter a new field of physics”[1], there have been many revolutionary developments in physics, chemistry, and biology that have demonstrated Feynman’s ideas of manipulating matter at an extremely small scale, the level of molecules and atoms, the nano scale[2].
Nanotechnology enhances our understanding of “origins” of key properties of everyday materials and structures; of manufacturing processes and interactions between materials, structures, external elements and internal components.
With the addition of nanoCaCO3, the C-S-H gelatine can generate and link across the surface of CaCO3; ettringite can also generate across the nanoCaCO3 surface, and then form the Hedgehog structure that nanoCaCO3 is the core [9], as fig.3 shown.
So the addition of nanoCaCO3 can improve the microscopic structure of hardened cement paste.
Through testing the resistance variation of concrete, establish the relationship between resistance and load, which make predict damage of concrete structure possible and make concrete as a sensor.

Over the past two decades, there have been increased emphases on the topic of green chemistry and chemical processes.
The formation of ferric hydroxide and ferrous hydroxide form a shell core structure with Protein chain of Datura inoxia leaf extract as core.
XRD is an effective characterization to confirm the crystal structure of the synthesized protein coated Fe3O4 nano-bio hybrid.
Facilities extended by Nano Science and Chemistry Research Laboratory, Faculty of Engineering and Technology of Mody University of Science and Technology, Lakshmangarh are gratefully acknowledged.
Lu, Magnetic nanocomposites with mesoporous structures: synthesis and applications, Small 7 (2001) 425-443

Neutralization of Impurity Elements of Cu and Ni in Mg-Zn Alloy by Dissolution into MgZn2 Phase Kaito URUCHIDA1,a*, Naoki KADOTA2,b and Taiki MORISHIGE3,c 1,2Graduate School of Science and Engineering, Kansai University, Osaka, Japan. 3Department of Chemistry and Engineering, Kansai University, Osaka, Japan.
When the concentrations of Cu and Ni exceeded this range, the crystal structure of the MgZn2 phase transformed from hexagonal (hP12) to cubic (cF24).
From Fig. 1, the main peaks of all samples can be indexed based on a hexagonal MgZn2 type structure (hP12), confirming the formation of MgZn2 phase.
From Fig. 4, the peaks of sample X = 6 can be indexed based on a cubic MgCu2 type structure (cF24), and a change in the crystal structure was observed.
However, when this concentration range was exceeded, the crystal structure of the MgZn2 phase transformed from hexagonal (hP12) to cubic (cF24).

Compared with traditional material, the nano-structure has showed its more excellent physical-chemical properties.
There exist closed relations between the morphological structure and particle size and its physical-chemical properties, so the Nano-Cu2O with different morphological structures are applied in different fields.
The results indicate that the structure of Cu2O crystal can be influenced by the simple salts with chloride ion.
As the increase of chloride ion concentration, the structure of Cu2O transform from analogous asterisk into cube.
Xu: Inorganic Chemistry Communications, Vol. 6 (2003), p.1390

Performance of TiO2 thin films as a photocatalyst, for solar cells or gas sensor depend not only on its energy band structure but, to a great extent, on its crystal structure, crystallite size and morphology [5].
The dried TiO2 films were then calcined at 300°C and 600°C for 30 min to form different structure.
I-V curves of the structures with TiO2 layer, for two drawal speeds (v) and 2 min immersion time (t) of samples, are similar to those obtained on PS/Si structure.
Figure 5 shows for both structures that the maximum sensitivity peak is observed at 450 nm wavelength (UV), and the sensitivity is found to be of the same order of magnitude as that of the PS/Si structure.
Sen, Materials Chemistry and Physics 83 (2004) 169-177

The composite structure was achieved by regulating the concentration of Ar in a mixture of acetone and a hydrogen gases in different stages.
The two-layer structure has the advantages of good adhesive strength and low surface roughness.
The upper layer represents a coarse columnar structure of the microcrystalline diamond film.
,Sardela et al: Macrotexture and growth chemistry in ultrananocrystalline diamond thin films .
Mermoux, et al: Analysis of the structure of multi-component carbon films by resonant Raman scattering .

This ion was incorporated in the apatite structure through a substitution mechanism by replacing Ca in the crystal lattice.
The effect on the coating properties like the morphology, chemistry and crystallinity was then evaluated.
This result indicates that the presence of Sr inhibits the growing of the apatite crystals, increasing the nano-character of the apatite structure.
The crystallinity and chemical structure was evaluated by TF-XRD and DR-FTIR analysis (Fig. 3).
Although having higher ionic radii than Ca, Sr atoms are able to replace them, causing a distortion in the crystal structure.

It was found that as-sprayed sensor tubes have a lamellar structure.
After sintering, the lamellar microstructure changed into granular-type structure.
These phases are dependent upon feedstock chemistry, thermal histories of the particles, solidification rates and temperature of the deposit.
It was found that as-sprayed sensor tubes have a lamellar structure.
After firing, the lamellar microstructure changed into granular-type (equiaxed grains) structure.