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Forgings offer higher strength and ductility with respect to cast and machined parts, owing to an improved soundness and uniformity in chemistry.
The matrix fibers, however, are often divided into a very fine dynamically recrystallized grain structure.
The grain structure of the 6082 forging produced from cast stock is shown in Fig. 8.
The fibrous grain structure is often credited for the superior fatigue properties of the forgings.
(a) The control arm forged from cast 6082 stock, (b) section macrostructure and (c,d,e) grain structures at locations marked in part (a).

The main mineral of the clays used was hydromica with slight differences in the structure.
Sorption properties of such porous ceramic depend on the type of clay, as well as additive, sintering temperature and pore structure of the ceramic [5, 6].
The nanopore structure of Apriki clay pellets are shown in Fig. 2.
[5] L.Dabare, R.Svinka, V.Svinka, Sorption of inorganic substances on the porous Latvian clay ceramic, Latvian Journal of Chemistry, 4, (2012) 383-388
Activated carbon: Structure, characterization, preparation and applications.

The crystal structure of the RbLa2Ti2TaO10 were analyzed by a Rietveld refinement using X-ray diffraction.
The structure refinement was carried out by the Rietveld method, using the RIETAN94 profile refinement program [8].
The crystal structure of the isostructural compound, RbCa2Nb3O10, was reported by Liang et al. [9].
Fig. 2 shows the refined crystal structure of RbLa2Ti2TaO10.
The triple layered perovskite structure of RbLa2Ti2TaO10:Eu3+ has a quasi-two-dimensional La sublattice.

The Ti-Zr binary system forms a continuous solid solution for both high temperature β phase with the body centered cubic (BCC) structure and low temperature α phase with the hexagonal close-packed (HCP) structure throughout the entire range of composition.
Constructing of porous structure is one of promised methods for controlling the mechanical properties.
Any alteration in the chemical composition of Ti alloys may lead to stabilisation of a certain phase and crystal structure: the high temperature Ti has a body-cantered cubic (BCC) structure, β-phase, while the low temperature phase (α) displays a hexagonal close-packed (HCP) structure.
The acicular structure of α-phase can be observed in all alloys, regardless of heat treatment state.
Young, Ti–6Al–4V triply periodic minimal surface structures for bone implants fabricated via selective laser melting, J.

Nano-structured polymer stamps were prepared from porous anodic alumina templates.
Once a master is available, the nano-structure of the master is implinted with a simple and economic way.
Scheme 1 is the illustration of routes to nano-porous structure from nanoporous alumina template.
Thus, the dimension of the stamp structure was controlled by controlling the dimension of the master templates.
The ordered nanoscopic embossing structure was successfully transferred onto the PPT film via simple imprinting.

Hence, various structures of SPI were synthesized and studied.
The structure and property relationship of SPIs were studied systematically.
Figure 1 shows of chemical structures of SPI-N and SPI-BN.
The chemical structure of copolyimide was confirmed by FT-IR spectroscopy (Figure 2).
Sabharwal, Radiation Physics and Chemistry Vol. 80(2011), p. 803 [10] S.

We synthesize silver nanocrystals encapsulated in mesoporous silica nanoparticles (Ag-MSN) with a yolk/shell structure, and tested the antimicrobial efficacy of the materials against marine bacteria V. natriegens.
It can be seen that single silver nanocrystals (black spheres) have been embedded at the center of the spherical mesoporous silica structures (light spheres).
Fig.1 (a) SEM (b) TEM of the sliver nanocrystals encapsulated in mesoporous silica nanoparticles The XRD spectra of pure crystalline silver structures have been published by the Joint Committee on Powder Diffraction Standards (file No. 04-0783).
CPE2 would normally be assigned to the capacitance of a surface film (a function of factors such as film thickness and defect structure).
Conclusions Silver nanocrystals encapsulated in mesoporous silica nanoparticles with a yolk/shell structure have been synthesized, and their antimicrobial effect in organosiloxane sol film was tested.

It is shown, that as a result of sorption processes and interaction between the polymer macromolecules and the substrate surface, the thin polymeric layers are formed with a structure determined by the substrate properties.
Combination of the process of condensation of macromolecules combined with the moist air blown parallel to the surface appears a very simple and flexible way to make materials with the regular 3D structure [5].
It is shown [5] that the process depends on the presence of atmospheric moisture and the observed structure is a result of the formation and subsequent crystallization of "breath figures".
The PMMA layers produced from 0,5% toluene solution on different substrates (silicon, glass) have regular surface structures.
Analysis of the PET substrate after plasma processing before PMMA film formation, revealed the periodic texture structure of these substrates (Fig.4 ).

Vora 3, * 1 Department of Electrical Engineering IIT Madras, Chennai- 600 036, India. 2 Department of Chemistry, IIT Madras, Chennai-600 036, India E-mail: rsarathi@iitm.ac.in 3 Dept. of Material Science, National University of Singapore, Singapore
Chemical structures (6F-PEI)s are shown in Fig.1.
Fig. 4 FTIR Spectra of aged transformer oil with the fluoro-poly(ether imide) When excited at 350nm, similar vibrational fine structuring of the emission spectra (λem=400nm) was still observed (Fig.5 (ii)).
At λex 265nm, the emission spectra (λem 337 nm) show vibrational fine structuring of the excited electronic level (Fig. 5.
Since the fluorescence peaks are structured with well-marked vibronic structuring of ~1350cm-1, corresponding to aromatic ring C-C stretching frequency, it is possible that the fluorophores could be some polycyclic aromatics often found in all oils of petroleum origin [8,9].

The carbon prepared by heat treatment showed a broad x-ray diffraction peak around 2θ=22.4° indicating a disordered structure.
The infrared spectrum of our PPP showed good evidence for the para configuration, with pteny1 end groups constituting a minor part of the structure.
The absence of fine structure in the spectrum may possibly result from a high degree of orientation involving the polymer chains.
It shows that PPP was changed polymer to carbon structure.
American Chemistry Soc.