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XPS study of the electronic properties of the Ce/4H-SiC interface, and the formation of the SiO2/Ce2Si2O7/4H-SiC interface structure upon oxidation M.
Furthermore, as a result, the oxide-SiC interface chemistry is strongly modified and thereby also strongly modifies the electronic properties of the interface.

Use of Silicone Materials in Modern Structures of Highly Functional Technical Means of Rehabilitation SOLNTSEVA Irina1, a, BIELIEVTSOVA Ludmila1, b, BLYZNYUK Oleksandr2, c *, VASILCHENKO Alexey3, d 1Ukrainian Research Institute for Prosthetics and Rehabilitation, 339, Klochkivska str., Kharkiv, Ukraine 61051 2National Technical University«Kharkiv Polytechnic Institute», 2, Kyrpychova str., Kharkiv, Ukraine 61002 3National University of Civil Defence of Ukraine, 94, Chernishevska st., Kharkov, Ukraine, 61023 airensun78@gmail.com, bludmila.belevtsova02@gmail.com, cavb-2009@ukr.net, davas2006@ukr.net Keywords: technical means of rehabilitation, high-temperature silicones, low-temperature silicones, physical mechanical properties Abstract.
Due to heat resistance in the temperature range from minus 50 oC to plus 200 oC it is possible to clean products by boiling; – water resistance and chemical resistance to weak solutions of acids, alkalis and salts, which provides a wide range of applications of orthopedic products in the household of a disabled person, in particular, during dirty agricultural work or in workshops; – resistance to the environment of sweat; – no allergic reactions; – good compatibility between different types of silicones, which allows to provide different hardness of individual parts of the product, without losing the homogeneous structure of the material; – manufacturability, which provides the possibility of making a stand by traditional methods for prosthetic construction [3].
Thus, in accordance with the global trends described above, one of the most relevant areas of applied chemistry today is the development of technological solutions for the use of elastic high-temperature silicones in the manufacture of high-performance rehabilitation equipment, such as bionic prostheses (external energy prostheses). and lower extremities.

New approaches have also been proposed to prepare NdFeB magnets with idea structure.
To develop magnets with new structures or low cost, new process is also in need.
Recently, we report a new wet chemistry approach to synthesize the nanocomposites of NdFeB/nano-Fe(Co) with controllable compositions and sizes of both phases [16].
The microstructure (Fig.11b) shows that dense consolidation can be realized and the ultrafine grain structure can be maintained in the magnet.
Fig.14a is a low magnification SEM image of HDed magnet, showing densified deformed grain structure.

The interconnected pores within the scaffolds form continuous pathways throughout their structure (Figure 2(a) and (b)).
Notably, doping with the Cu precursor did not significantly alter the scaffold structure.
The XRD spectra of the Sr-BG and Cu-Sr-BG scaffolds displayed a broad halo band at 2Ɵ ~20–30º, characteristic of the amorphous structure of bioactive glass.
Cu doping did not alter the silica network or compromise the scaffold's amorphous structure.
Schnepp, The evolution of ‘sol–gel’ chemistry as a technique for materials synthesis, Materials Horizons 3(2) (2016) 91-112

Obtained dependencies are analyzed and discussed using proposed schemes of transitions in the VO43- groups and structure of the nearest surrounding of the Eu3+ emission centres.
Structure of the Eu3+ emission depends on the Eu3+ concentration.
For samples with x = 0.05 and 0.1, this structure is more complex than for samples with x = 0.3 concentration.
Temperature behavior of the Eu3+ emission is considered for the samples with low Eu3+ concentration (Fig.6), where a more complex structure of the spectra was observed (Fig. 3, curves 2- 4, [4]).
The europium-free LaVO4 samples have monoclinic structure, and the Eu-containing La1-xEuxVO4 samples have tetragonal structure (Fig. 1).

The YSZ coatings had a well-grown columnar structure with significant (200) orientation.
The YSZ coating with (200) oriented columnar structure was obtained at a deposition rate (Rdep) of 230 µm/h.
Fig. 8 depicts a nano-structure of YSZ coating prepared by laser CVD at Rdep = 450 µm/h.
Fig. 8 Cross-sectional view of nano-structure of an YSZ coating prepared by laser CVD at Rdep = 450 µm/h.
Bauerle : Laser Processing and Chemistry (Springer, Berlin 2000)

The structure, morphology, thermal behavior and mechanical properties were investigated.
The structure, morphology, and mechanical properties of the films were analyzed.
Structure of the WPU and WPU/CNFs Nanocomposite Films.
The Effect of Oxidation Conditions on Chemical and Crystal Structures of the Water-Insoluble Fractions, Biomacromolecules. 5 (2004) 1983-1989
Synthesis and Properties of UV-Curable Polyester-Based Waterborne Polyurethane/Functionalized Silica Composites and Morphology of Their Nanostructured Films, Industrial & Engineering Chemistry Research. 51(2012) 8434-8441

Thus, it is possible to add additives to the preforms and to influence the microstructure of the preforms and thereby the structure of the infiltrated composites.
Preform pore structure determines the process further more.
Table 3, Date of the infiltrated Cu/SiC-MMC The structure of the preforms has not been altered or damaged by the infiltration process (Fig 4).
Xu, Compressive behaviour of Al-based hybrid composites reinforced with SiC whisker and SiC nanoparticles, Materials Chemistry and Physics 101 (2007) 242-246
Lott, Interface Design of Copper/Alumina Composites with Interpenetrating Phase Structure, PhD thesis, School of Materials Science and Engineering University of New South Wales, Sydney, Australia, 2012

Metal implants are often coated by hydroxyapatite because they have a chemical composition and crystal structure similar to apatite in the human skeletal that suitable for bone reconstruction.
The result means the mechanical interlocking increased because of the existence of contoured surface structure on Ti- Al-V substrate, makes the bond between HA and substrate increased. 100 µm Fig. 3.
The effect of sinter process on the HA structure shown by Fig. 7.
Ball-Milled HA particle form dispersed micro-structure HA when deposited by EPD process, sinter process didn’t change chemical composition.
[7] Zahran R, Rosales Leal J I, Rodríguez Valverde M A and Cabrerizo Vílchez M A, Effect of hydrofluoric acid etching time on titanium topography, chemistry, wettability, and cell adhesion PLoS One 11 (2016) 1–12

Meanwhile, the added CNTs improved the pressure-sensitive, conductivity and electromagnetic absorption properties of the prepared mixes, which laid a foundation of multi-functional concrete and structure.
The microstructure of CNTs cement-based composite materials was analyzed through SEM , found that the surfaces of carbon nanotubes in composite materials were coated by cement hydration products, the structure of CNTs cement mortar was close-grained.
Mercury intrusion porosimetry also showed that the CNTs adding improved the pore structure of cement matrix.
The morphological structure was analyzed by field emission scanning electron microscopy (FESEM) and EDS.
Smart Materials and Structures, 18 (2009) 055010. ], from university of Minnesota, studied the piezoresistive properties of CNTs cement-based composite materials.