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The temperature gradient sets the recrystallization speed, determines the quality of the grown structures.
Smith, Measuring and Predicting the Internal Structure of Semiconductor Nanocrystals through Raman Spectroscopy, Journal of the American Chemical Society, 138(34) 10887-10896
Kuryavyi, Thermal stability of multilayer carbon nanotubes produced by the mechanical activation of amorphous carbon. // Coke and Chemistry, 57 (11) (2014) 444-447
Pashchenko, Structure of Ge nanoclusters grown on Si(001) by ion beam crystallization, Inorganic Materials, 49(5) (2013) 435-438
Rubtsov, Bismuth in quaternary and quinary solid solutions based on A3B5 compounds, Russian Journal of Physical Chemistry A. 85(12) (2011) 2062-2067.

The objective of the paper is the study of the vein quartz structure from the contact areas above (Fig. 1).
Bragg factors (Re and GofF) give an assessment of the crystal structure model and are weakly sensitive to background measurement errors and to profile functions.
This fact is most often associated with the imperfection of the crystal-line structure of the test sample, which results from a decrease in crystallization temperature.
Sochalski-Kolbus, Solvothermal synthesis and surface chemistry to control the size and morphology of nanoquartz, Crystal Growth & Design 15 (2015) 5327-5331
Nakahara, Preparation and formation mechanism of silica microcapsules (hollow sphere) by water/oil/water interfacial reaction, Chemistry of Materials 16 (2004) 5420-5426.

The mullite ceramics with an elongated needle-like microstructure and rod like structure can be used as a refractory ceramics, microelectronic packing, microwave dielectrics and infrared-transmitting materials.
This characteristic formation of microstructure and structure may critically determine the low coefficient of thermal expansion (CTE), low density, low thermal conductivity, and dielectric constant as low as 6.7 in mullite ceramic.
The aim of the investigation was to produce a highly developed mullite structure based on the interactions between Al2O3 and silica xerogel converted from sago waste ash.
The heterogeneous structure still appear on all composition of Al2O3 as confirmed by the XRD pattern, which indicate that mullite glass formation was not yet complete.
Pattabhi: E-journal of Chemistry, Vol. 5 (2008), p. 233

Therefore, the realization of insulating heat packaging needs the structure of insulating container with refrigerant which maintains the inside temperature of package constant.
In this case, the length of grafted branch chain gets shorter, which does not favor the formation of spatial network structure of resin.
The close water ions in polymer network structure will generate osmotic pressure in the network structure inside and outside, and water molecules will penetrate into the network structure because of it [7].
Liu: Guangzhou Chemistry Industry, Vol. 37 (2009) No.2, pp.6-8.
Wu: Chemistry and Adhesion, Vol. 28 (2006) No.3, pp.169-171.

Therefore, it is of great importance to realize the preparation of controllable pore structure.
So as to laid the foundations for preparation of P(GMA-co-EGDMA) monolithic columns with controllable pore structure.
As shown, pore size decreased with increasing of proportion of EGDMA, meanwhile, it had a more compact structure.
MC-3 had smaller globules, nevertheless, those small globules formed large clusters which made a more compact structure.
Alharbi, et al, Fast chromatographic determination of caffeine in food using a capillary hexyl methacrylate monolithic column, Food Chemistry, 132(2012) 2217-2223

Introduction Nanoparticles reinforced polymers attract more and more attentions due to their unique properties resulting from the nano-scale structures.
The CNTs (multi-walled carbon nanotube, purity 95 wt%, diameter 10–30 nm) synthesized by chemical vapor deposition was purchased from Chengdu Organic Chemistry Co.
The synthesis and structure of nanocrystalline materials produced by mechanical attrition: a review.
Alumina-filled polystyrene microand nanocomposites prepared by melt mixing with and without latex precompounding: structure and properties.

A novel chemical image sensor applied the principles of optical chemistry and micro-fabrication technology is developed to detect the ion concentrations in the solution qualitatively and quantitatively by He Huiqi[1].
Structure of optical fiber sensor array The structure of optical fiber sensor array is shown as Fig.1.The spectral signals of sensor sensitive to A, B, C and D ions are collected by spectrometer and transferred to PC.
（1） Fig.1 The structure of optical fiber sensor array In this article ,n is valued as 4 corresponding to four ions, peak height normalized of A,B,C and D ions a1，a2 , a3 and a4 are valued as 0.9,0.85 ,0.8 and 0.95，peak position b1,b2 ,b3and b4 are valued as 300nm,400nm,500nm and 600nm, peak width c1,c2 ,c3 and c4 are valued as 100nm respectively.

Introduction Microcapsule has many physical properties, measuring characteristic parameters of microcapsule is mainly: shape and structure, particle size and size distribution, content of the core material and composition, capsule wall thickness, wall core ratio, storage stability, core material release behavior, etc.
The main factors mainly are emulsifying conditions, polymer reaction temperature, chemical structure of wall material, emulsifier, the structure of the preparation container, etc.
Analytical chemistry, 1998, 70(1): 111-116 [2] Ki-jeong Hong.

Preparation of titanium dioxide nanotube arrays and photocatalytic degradation of methyl orange Yingcao Xu1,2,a, Hong You1,b 1State Key Laboratory of Urban Water Resource and Environment, School of municipal & environmental engineering, Harbin Institute of Technology, Harbin 150090, China 2Applied chemistry department, School of sciences, Northeast Agriculture University, Harbin, 150030, China axuyingcao@aliyun.com, byouhong@hit.edu.cn Keywords: TiO2 nanotube array, photocatalyst, methyl orange.
Since 2001, Grime[1] found that nano-titanium dioxide tubes which has a neat tubular morphology, for its good adsorption capacity, high surface area and unique structure, gradually, it is attracted people's attention.
TiO2 nanotubes prepared by anodic oxidation Has the advantage of well-distributed and neatly-arranged nanotubes structure, combined with a solid titanium conductive substrate, and simple preparation methods[4-5].
Because the unique tubular structure of TiO2 nanotube arrays can provide a one-way channel in transfer of photoinduced electron, so TiO2 nanotubes Has the advantage of excellent photocatalytic properties and photoelectric conversion efficiency [6].

The Study on Chloride Corrosion of Concrete Containing Admixture Mineral Meili Zhao1, a, Aixiang Li 2,b, Lintong Wang3,c, Yunfa Chen4,d 1,3,4Department of chemistry and chemical Engnieering of Weifang University,Weifang,Shandong 261061, P.R.
The chloride ions penetrated to the concrete-steel surface and built up gradually,then reached the cirtical concentration.The chloride ions damaged the surface of the steel then led the severe steel corrosion[1].So the concrete structure was severely damaged.
Conclusion According the before three methods test for the chloride resistances ，we found that the chloride resistances concretes with admixture mineral were more better than the benchmark concretes.We concluded that the admixture mineral could improve the chloride resistances of the concretes.The activity of the admixture mineral and these particles filling the hole had improved the inner structure of the concretes.
The more dense structure,it could get the more better performance.