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Solid lubricants can be classified as lamellar and non-lamellar based on their structure, organic and inorganic based on their chemical composition, and metallic and non-metallic based on their properties[12-13].
• The prepared CaF2 powder was found to be in crystalline form, having a cubic crystal structure with a crystallinity percentage of 78.01
Ludema, Mechanics and Chemistry in Lubrication, Tribology series, 9(1985), Pages 549-614.
Open Chemistry, 16(1), 864–868

BaTiO3 belongs to the perovskite structure typified by ABO3, the most important feature being oxygen octabhendra which are linked to form a three-dimensional lattice.
One is lead metaniobate, PbNb2O6, discovered by Goodman in 1952, belongs to the tungsten bronze structure and has a high Curie temperature, 560oC [18].
The structure, as in perovskite, has a three-dimensionally linked Nb (Ta) oxygen octahedra with three different types of interstices for other cations.
The other is the bismuth oxide layer compounds, the chemistry and crystal structure of which was established by Aurivillius [19].
Once this discovery was made, established materials chemistry and processing approaches were exploited to alter the magnitude and temperature of the PTCR behaviour to open up ever-increasing application domains.

A morphology of the final FinFET structure is shown in Fig. 2.
The structure of both device types is schematically shown in Fig. 3.
An absolute value of the threshold voltage of the side-wall MOS structure is lower by ca. 0.5 V than of the top MOS structure.
The test structure consists of five devices with common source and gate electrodes, whereas drain electrodes are separate.
Schönenberger: Procedia Chemistry 1 (2009) p.678

With drainage due to the development of the cement gel structure, the polymer particles are gradually confined in the capillary pores.
Its agglomerated structure consists mostly of calcium silicate hydrates and calcium hydroxide, is bounded together by Van der Waals forces.
Latex-modified mortar has a structure in which the larger pores can be filled with polymers or sealed with continuous polymer films.
Hybrids are due to their closed and compacted structure suitable for flooring systems with high requirements.
It has to be stable on UV radiation and also has a closed pores structure to keep the top coat clean.

The crystal structure of LnAG can be regarded as a skeleton composed of Al-O eight-hedron and Al-O tetrahedron.
FT-IR infrared spectroscopy has been performed to study the chemistry function group of (Lu1-xTbx)AG precursor synthesized at different Tb concentration, and the results are shown in Figure 3.
The absorption band centered at ~3556 cm-1 is indicative hydroxyl group (OH-) in the structure [12-14].
Ching, Electronic Structure of Yttrium Aluminum Garnet (Y3Al5O12), Phys.
Szafran, Structure of complex of N-methylpiperidine betaine with p-hydroxybenzoic acid studied by X-ray, FT-IR and DFT methods, J.

Its species diversity and primary production directly affect the structure, function and stability of ecosystems and algae is very sensitive to changes in the environment caused by foreign substances, so changes in water quality often affect biological diversity and structure of algal, and thus algae has become an important indicator to monitor and evaluate the quality of water environment .
Damage caused by reactive oxygen species mainly leads to membrane lipid peroxidation, which damages to the cell membrane structure and function.
Photosynthetic organs is one of the main source of O2-•, etc. of plant cell, and photosynthetic pigments and thylakoid membrane all have unsaturated polyene structures vulnerable to ROS attack.
Qingping Du[10] et al. found 1,2,4-TCB damaged to the structure or function of chloroplasts of algae cells, resulting in abnormal photosynthetic of organism.
Wang: Chemistry & Bioengineering(In Chinese) Vol 23(2006),p 37 [2] M.J.

Souza 2, 1 Materials Engineering Department Federal University of São Carlos, Brazil 2 Chemistry Engineering Department Federal University of Bahia, Brazil e-mail: dsek@power.ufscar.br Keywords: nanocrystalline alloy; amorphous alloy.
The effect of Nb addition on FeCuSiB based alloys structure is known.
The effect of Nb and/or Mo addition on the structure and corrosion resistance of FeCuSiB based alloys were investigated.
However, in literature only the effect of Nb on FeCuNbSiB based alloys structure was reported.
The results indicated that the composition and structure affect the corrosion resistance of the alloys.

Therefore, the development of porous structure was improved with chemical activation process [1].
Activation condition determine the characteristics of porosity in activated carbons, including pore size distribution, shapes of the pores, and surface chemistry.
Thus, the development of an appropriate pore structure was necessary if the activated carbon produced was to be used for a particular application.
Type I isotherms are usually represents dense micropore structure [15].
In addition, by changing the activation agent, the pore structure and surface area of carbon would be changed as well.

TEM images show that the NCC has rod-like structure after undergone acid hydrolysis process.
During this pretreatment process, lignin that seals the cellulose was broken and crystalline structure of cellulose remained [27].
Cassales, Extraction and characterization of nanocellulose structures from raw cotton linter, Carbohyd.
Tam, Chemistry and applications of nanocrystalline cellulose and its derivatives: A nanotechnology perspective, The Canadian Journal of Chemical Engineering, 89 (2011) 1191-1206
Tingaut, Porous Adsorbent Structure for Adsorption of CO2 from a Gas Mixture. (2012), Google Patents

Recent Progress of SiC Hot-Wall Epitaxy and Its Modeling Shin-ichi Nishizawa1, a and Michel Pons2,b 1 National Institute of Advanced Industrial Science and Technology (AIST) 1-1-1 Umezono, Tsukuba, 305-8568 Japan 2 INPGrenoble-CNRS, Domaine Universitaire, BP75, 38402 Saint Martin d'Hères Cedex, France a s.nishizawa@aist.go.jp, bMichel.Pons@inpg.fr Keywords: Hot-wall CVD, Numerical Modeling, Growth Rate, Etching, Doping, Surface Morphology, Surface Structure, Abstract.
Recently, there is another approach to avoid gas phase nucleation by using chlorine chemistry [10, 11].
Taking account of crystal structure, the reaction rate constants of Si and C containing species are changed.