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Introduction Non-destructive testing (NDT) [1] are non-invasive techniques to determine the integrity of a material, component or structure or quantitatively measure some characteristic of an object.
Figure 1 and Figure 2 shows, in prevailing literature, Masayuki Yoshikawa et al. [3] have made notable contributions to find the structure of Borassus Flabellifier on the basis of chemical and physicochemical evidence.
Figure 1 - Structure of BF A (1).
Figure 2 - Structure of BF B (2) & C (3).
Vol. 55 (2007), p. 308 [4] Physical Chemistry: Wiley Eastern Limited New Delhi, India

Introduction The binder of traditional steel bonded TiC alloy contained expensive metal elements Mo and Ni so as to improve wettability between TiC and matrix, forming famous Surrounding Structure as “SS” phase, in nature it was Mo2C phase coating TiC particle, which had excellent wettability with matrix.
According to former analysis, the chemical composition such as table 2-1was made Table 2-1 Chemistry composition of high manganese steel-bonded TiC (wt %) Matrix C CeO2 Mn Cr TiC Fe Hadifield steel 0.80-1.40 0.2-0.8 8.00-16.00 2.0-6.0 30.00-45.00 remaining Technology for heating processing.
The fracture appearance and microstructure were observed separately by JSM-6360LV electron scanning microscope and Olympus optical metalloscope, and lattice structure was analyzed by D/MAX 2500 X-ray diffraction machine.
■ TiC ▲ Fe ● (Fe,Mn)3C Fig.3-8 X-ray diffraction pattern (a) as-sintered (b) at 1050˚C(c ) at 1100˚C Fig.3-7 Effects of heat treatment process on HRC and αk (a) 1050˚C×(1h, 2h, 3h, 4h) (b)1100˚C×(1h, 2h, 3h, 4h) (c) (a) (b) (d) (e) (f) Fig.3-9 Effects of heat treatment on metallographic structure (a) as-sintered,(b), (d), (e) , (f) 1100˚C×1h, 2h, 3h, 4h(×1000),(c)1100˚C×1h(×2000) Metallographic structure was seen in Fig.3-9.

The main methods of laser coloration are lithography [5-7], oxidation of the metal surface [8], the creation of laser-induced periodic surface structures [9], and the plasmonic metal nanoparticles (NPs) formation.
The formation of laser-induced periodic surface structures allows achieving unusual visual effects, however, the produced colors strongly depend on the angle of light incidence [10].
The structures of the modified layer after laser irradiation are shown in the SEM images (Figure 5).
Van Duyne, Nanosphere lithography: effect of substrate on the localized surface plasmon resonance spectrum of silver nanoparticles, The Journal of Physical Chemistry B 105 (2001) 2343-2350
Zemann, Crystal structures, Vol. 1 by RWG Wyckoff.

Introduction The quality of machining surface refers to the micro waviness of the parts' machining surface after machining, also known as roughness, the surface quality directly affects the physical chemistry and mechanics performance of the work piece.
Material Microstructure Changes On Surface Layer: When the temperature of the heat cutting make the processed surface more than the phase transition temperature, the metallographic structure of metal on surface layer will change.
If the temperature exceeds the phase change temperature in the grinding zone, coupled with the cooling liquid quenching effect, the surface metal secondary hardening occurs, making the secondary quenching martensite structure appear in the surface of metal , its hardness is higher than the original tempered martensite, in its lower layer, due to the slower cooling, the hardness is lower than the original tempered martensite tempered organization (sorbite or austenite), this burn is called hardening burns.
Third is different metallographic structures have different density, also have different specific volume,if metallographic structures changes in the surface layer of metal , the change of the specific volume in the surface of metal volume must be linked by the base metal, thus there will be residual stress generated.

Using this method of obtaining instrument structures allows to teach solar cells with an efficiency of more than 10%.
The most important parameter determining the perfection of the structure of the films is the supersaturation of the vapor phase above the surface of the growing condensate, characterizing the deviation of the growth conditions from thermodynamic equilibrium.
The sputtering rate – (4 - 40)·10-5 g/(cm2·s), the deposition rate of the coatings – 50–60 nm/s, the specific evaporation – 3·10-6 g/J, the energy of the sputtered particles – 10–20 eV. 4 Conclusions A critical analysis of the methods for producing cadmium sulfide and cadmium telluride films, which correspond to the current level of technology development, is carried out, the possibility of adapting these methods to the production of instrument structures on a flexible substrate is studied.
Shevchenko, Investigation of photoelectric converters with a base cadmium telluride layer with a decrease in its thickness for tandem and two-sided sensitive instrument structures, 5 (2019) 73-80
Canevari Growth of polycrystalline CdS and CdTe thin layers for high efficiency thin film solar cells, Material Chemistry and Physics. 66 (2000) 201-206

They have similar crystal structures and kation radius.
There is a close relation between the activity and the surface adsorption condition, which depends on the size of magnesium oxide crystal grain and the crystal structure [10]. 3.1 Effect of calcining temperature on the hydration of the expansive agent The hydration characterization of the magnesium oxide expansive agent is related to the calcining temperature.
Different heating process in the growth of crystal leads to difference in crystal structure, which has effects on the hydration activity.
Chinese J. of Inorganic Chemistry 23(2007), 1063-1068
Mass concrete for dams and other massive structures.

The crystalline structure and composition of coatings on ET sample surfaces were tested better than UT samples.
There have been efforts to improve the osseo-integration capability of the titanium implants by enhancing osteo-conduction on their surfaces using surface morphology and chemistry.
Various methods have been used to develop morphological structures of titanium implant surfaces to promote bone ingrowth and fixation between implants and bone: such as powder/fiber/wire mesh metallurgical sintering, surface blasting, vacuum plasma spray processing, micro-machined method and chemical treatment [8-10].
It clearly indicates that the oxidized film and porous structure can attribute to obtain the good bone-like coating.
The oxidized film and porous structure produced by anodic oxidization can benefit obtaining the good bone-like coating.

The interaction between the resulting induced dipoles causes the particles to form columnar structure, parallel to the applied fields (Fig.1).
These chain-like structures restrict the motion of fluids, thereby increasing the viscous characteristics of the MR fluids.
The mechanical energy needed to yield these chain-like structures increases as the applied field increases resulting in a field dependent yield stress.
It is well known that the magnetic particles in MR fluids are polarized upon the application of external magnetic field, and columnar structure are formed.
In fact, the Magnetic float finishing is a complicated process of physical chemistry.

Because the material removal rate of FMA relates to magnetism, mechanics, chemistry and fluid dynamics etc., the removal mechanism is complex and is still a challenge to researchers.
From the microscopic viewpoint, when an external magnetic field is applied, the magnetic particles in the FMA aggregate to form stable chain-like structures along the direction of the magnetic field (Fig.1).
The nonmagnetic abrasive particles in FMA are embedded in these chain-like structures [1], and a lapping layer is formed at the contact surface.
If a relative motion between the abrasive particles and the adjacent surface is given by the movement of work-pieces or the flow of FMA, the abrasive particles may have a translation or a rotation movement, so these abrasive particles have to overcome the embedding forces (magnetic forces) caused by chain-like structures of the magnetic particle.
The abrasive particles are held together by chain-like structures formed by magnetic particles in FMA.

Introduction The preparation of nanocomposite particles that simulate the structure and properties of typha angustifolia and egg shells which is of considerable current interest for materials science and chemistry.
Activated carbons derived from different plant materials is assuming importance as these materials are provided with large surface area, porous structure, varied high sorption capacity and high degree of surface reactivity.
Furthermore, benefiting from porous structure, low cost of the precursors and the green route, the obtained nanocomposite particles could be extended to the application as adsorbents, supporting material for sensors and catalysts, and biomedical materials.
Duran-Valle, Pore structure of activated carbons prepared by carbon dioxide and steam activation at different temperatures from extracted rockrose, Carbon. 40 (2002) 397-402