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Study of Local Mechanical Properties of Fe78Al22 Alloy Vilma Buršíková1,a*, Vojtěch Homola1, Yvonna Jirásková2, Naděžda Pizúrová2, Ivana Miháliková2, Martin Friák2, Nikola Koutná2, Anton Slávik2, David Holec3, Mojmír Šob 4,2,5 1Department of Physical Electronics, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic 2Institute of Physics of Materials, Czech Academy of Sciences, Žižkova 22, CZ-61662 Brno, Czech Republic 3Department of Physical Metallurgy and Materials Testing, Montanuniversität Leoben, Franz-Josef-Strasse 18, A-8700 Leoben, Austria 4Central European Institute of Technology, CEITEC MU, Masaryk University, Kamenice 5, 62500 Brno, Czech Republic 5Department of Chemistry, Faculty of Science, Masaryk University, Kotlářská 2, 61137 Brno, Czech Republic avilmab@physics.muni.cz, Keywords: nanoindentation, Fe78Al22, hardness, elastic modulus, mechanical property mapping, quantum-mechanical calculation, electron
Mechanical property mapping using micro- and nanoindentation tests is an excellent tool to study the effect of crystal structure on local indentation response of the studied alloys [4-6].
Structure and chemical composition.
Knowing the preference of Al atoms not to be mutually the first nearest neighbors (see, for example, our papers [16, 17]) we have distributed Al atoms so that they are mutually second or higher neighbors but otherwise their distribution is according to the special quasi-random structure (SQS) concept [18] and was generated by the USPEX code [19-21].

Papynov1,2,c 1Far Eastern Federal University, 690090, Vladivostok, Russia 2Institute of Chemistry, Far Eastern Branch of Russian Academy of Sciences, 690022, Vladivostok, Russia aZav_Alexey@list.ru, bNPShapkin@gmail.com, cPapynov@mail.ru Keywords: spark plasma sintering, SPS, silicon carbide, SiC, rice husk processing, ultra-high temperature ceramic, UHTC, reaction sintering.
The microphoto and Raman specters The investigation of the ceramic sample chip by the scanning electron microscopy method makes it possible to improve the structure understanding (Fig. 3).
The microstructure is a region with a SiC grain structure, as evidenced by local elemental analysis, coexisting with unreacted carbon residues (Fig. 3a).
The grains are represented both as fairly "loose" agglomerates (Fig. 3b) and as the part of larger monolithic structures (Fig. 3c).

From the point of view of the author, in the current conditions of increased competition, it is hardly advisable to erect the structures that, in their physical and mechanical properties, significantly exceed the values ​​established by the project.
For each value of the cement initial activity, it is possible to select such technological regimes of mechanical grinding that are able to ensure economic efficiency by reducing the consumption of mineral binder installed to achieve a given grade (class) of concrete structure.
Novikova, Cement clinker structure during plasma-chemical synthesis and its influence on cement properties, IOP Conference Series-Materials Science and Engineering, 71 (2018).
Skhvitaridze, Chemistry of cement and methods of accelerated prediction of compression strength (activity) of cements with mineral additives and concretes, Concrete and reinforced concrete. 3 (2005) 6-12

On the other hand, the researchers and technology developers' role is to keep in mind the material's response to welding, as well as the exploitation conditions and the environment characteristics, to accurately develop the optimal technology which should determine an appropriate combination of high technical performances for welded structures and economic advantages for manufacturers.
Moreover, in order to avoid the potential failures, the welded structures integrity is compulsory to be achieved and maintained over time, so that the safety in exploitation and the sustainable development are ensured.
In order to ensure right penetration, bead shape, dilution, weld metal chemistry and good mechanical properties of the welded joints, a balance between welding speed, wire feed speed, heat input and characteristics of the welding wire - flux couple had to be considered in WPS design [6, 7].
Secondly, the samples were inspected by liquid penetrant, magnetic particle, ultrasonic and gamma radiation control, in order to identify the flaws which could compromise the welded structure integrity.

Thus, one can obtain a variety of coating structures and properties.
Koval, Plasma-assisted deposition of a three-layer structure by vacuum gas arcs, IEEE Transaction on Plasma Science, 26, 6 (1998) 1680-1684
Denisov, Generation of low-temperature gas discharge plasma in large vacuum volumes for plasma chemical processes, Russian Journal of General Chemistry, 85, 5 (2015) 1326-1338
Koval, Structure and properties of commercially pure titanium nitrided in the plasma of a low-pressure gas discharge produced by a PINK plasma generator, Journal of Physics: Conference Series 652 (2015) 012013

Liu3 1Department of Materials Physics and Chemistry, Kyushu University, Fukuoka, 810-0395, Japan 2National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan 3School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an, Shaanxi 710049, China Keywords: Titanium, Grain boundary, Oxidation, Oxygen, Diffusion Abstract.
The orientation dependency of oxygen diffusivity was assumed to be isotropic in the hcp structure according to the results of a previous study on single-crystal alpha-titanium [14].
Both unalloyed titanium samples exhibited equiaxed grain structures.
Watanabe, Structure-dependent intergranular oxidation in Ni-Fe polycrystalline alloy, Acta Materialia, 47 (1999) 1163-1174

Svensson1 1University of Oslo, Department of Physics, Centre for Materials Science and Nanotechnology, PO Box 1048 Blindern, N-0316 Oslo, Norway 2SINTEF, Forskningsveien 1, N-0373 Oslo, Norway 3Linköping University, Department of Physics, Chemistry and Biology, SE-58183 Linköping, Sweden amqb7925921@163.com Keywords: silicon carbide, 3C-SiC, cubic, boron, implantation, characterization, intermediate band, photovoltaics, solar cells Abstract.
The boron in 3C-SiC structures was investigated by TEM using a FEI Titan G2 60-300 microscope.
In the emission pattern a bright anomalous area (cloud area) in the center is observed, indicating that the structure or composition in this area is different from that in the dark area.
Electron diffraction patterns (not shown) confirm that the B precipitates have different structures than the matrix.

Under a certain reaction temperature, to chloroplatinic acid as catalyst, the C = C bond of allyl alcohol polyether silicone and Si-H of hydrogen process the hydrosilylational reaction to synthesis polyether modified polysiloxane contain Si-C structure which has high stability.
When the ratio of hydrogen- containing silicone and polyether is different, the reaction phenomenon and structure of products are different from each other.
[6] El-Ashgar, “A review on polysiloxane-immobilized ligand Systems: Synthesis, charact- erization and applications,” Journal of Organometallic Chemistry, vol. 692, 2861-2886, 2007
Sawicki, “Impact of surfactant composition and surfactant structure on foam control performance,” Colloid and Surfaces A; Physicochem.Eng.Aspects, vol. 263, 226-232, 2005.

Kaul3 1NRC “Kurchatov Institute”, Kurchatov sq. 1, 123182 Moscow, Russia 2Materials Science Department, Moscow State University, 119991 Moscow, Russia 3Department of Chemistry, Moscow State University, 119991 Moscow, Russia ataldenkov@imp.kiae.ru, *corresponding author Keywords: magnetic oxides, manganites, isotope effect.
It has been discovered recently that an ordered structure of alternating layers of BaO-MnO-RO-MnO can be formed [1].
As the result ordered structure of alternating layers of BaO-MnO-RO-MnO can be formed in the manganite.
Isotope substitution occurred by simultaneous prolonged annealing of the pair of PrBaMn2O6 samples in an atmosphere of 16O and 18O (90%) at 750°C at 1 bar, leaving the ordered structure unchanged.

Performance Optimization for Lithium–Oxygen Batteries Fang Wanga, Daliang Xub, Chunsheng Liangc, Hongyuan Sund, Zhongkuan Luo e Key Laboratory of New Lithium-ion Battery and Mesoporous Materials, College of Chemistry and Chemical Engineering, Shenzhen University, Shenzhen 518060, People’s Republic of China awfang7373@yahoo.com.cn, bxdlv520@126.com, c925767097@qq.com, dhysun@szu.edu.cn, eluozhongkuan@126.com (corresponding author) Keywords: Lithium–oxygen batteries; carbon loading; electrolyte amount; current density Abstract.
In order to carry out the research systematically on the Lithium-air batteries, we have optimized Li–O2 coin cell structure , and then investigated the significant factors affecting the performance of Li-oxygen batteries.
The schematic structure of assembled coin cells is shown in Fig.2.
Schematic structure of an assembled Li–O2 coin cell.