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The influence of deposition process on structure of platinum-modifed aluminide coatings o Ni-base superalloy Lucjan Swadzba, 1a, Ginter Nawrat2,b Boguslaw Mendala1c Marek Goral,1d 1Silesian University of Technology, Department of Materials Science, Krasinskiego 8 40-019 Katowice, Poland 2Silesian University of Technology, Department of Inorganic Chemistry and Technology, Marcina Strzody 9, 44-100 Gliwice, Poland alucjan.swadzba@polsl.pl, b ginter.nawrat@polsl.pl, cboguslaw.mendala@polsl.pl, dmarek.goral@polsl.pl Keywords: superalloys, aluminide coatings, aluminizing, oxidation, PtAl.
Platinum-modified coatings have two main types of structures: single-phase, made up of (Ni,Pt)Al phase and diphase comprised of NiAl and PtAl2 phases.
No changes in the structure of the coatings were observed after the hot treatment (Fig.2c).
Its structure was two-phase, triple-zone.
The heat treatment, which followed the aluminising process, caused the changes in the structure of the coating (Fig. 3d).

The crystal structure was optimized and the lattice constants were obtained.
Results and discussion Crystal structure.
Mg3Zn3Y2 alloy has a partially ordered AlMnCu2-type fcc structure with space group of Fm-3m (see Fig. 1(a))[8], while CaMg2 belongs to the hexagonal structure with the space group P63/mmc (see Fig. 1(b)) [19].
For the CaMg2 phase with hexagonal structure, there are five single-crystal elastic constants, C11, C12, C13, C33 and C44 [23].
For both cubical and hexagonal structures, we have calculated total energies by imposing appropriate strains.

Introduction Activated carbon is a crucial adsorbent, partly because it has excellent pore structure and high surface area.
Fig.2 Effect of the binder addition on desulphurization 3.3 BET surface area and characterization of pore structure.
Obviously, the NPAC exhibits a superior pore structure which is more conducive to desulfurization.
By the isotherm type can be concluded that the sample has a nonuniform-porous structure.
The NPAC exhibites the prosperous pore structure than PAC sample which lead to a higher adsorption capacity.

Ristić4,f 1 Faculty of Physical Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia 2 Faculty of Agriculture, 11070 Zemun, Serbia 3 Faculty of Technology and Metalurgy, 11000 Belgrade, Serbia 4 National Institute of Chemistry, Hajdrihova 19, SI-1001 Ljubljana, Slovenia a maja@ffh.bg.ac.yu; bedondur@ffh.bg.ac.yu; cljiljana@ffh.bg.ac.yu; dvesna@ffh.bg.ac.yu; e nena@tmf.bg.ac.yu; falenka.ristic@ki.si Keywords: Fe, Methylene blue, Wet oxidation, Zeolites.
It has been shown that both tetrahedral, framework Fe, and octahedral, extra-framework Fe species incorporated into zeolite structure are catalytically active in wet oxidation reactions.
The aim of this work is to investigate the influence of the ionexchange procedure and the amount of Fe ions incorporated in the structure of different zeolites (ZSM-5, Y, BEA) on their catalytic activity for the reaction of H2O2 decomposition and for oxidation of the cationic dye Methylene Blue (MB) with H2O2 in aqueous solutions.
The results clearly indicate that the preparation procedure in which Fe is incorporated in the zeolite structure influences the catalytic activity.

No apparent change in composition and structure of n-HA/PA66 composite was found by XRD and IR determination before and after formation of porous species.
However, in the case of sample A3 (Fig. 1e), a linear aperture structure and preferential orientation in one direction is observed.
These results suggest that the weight of the mixture used per mold is one of the key factors affecting pore structure and porosity.
Those might result from different pore structure in the matrix.
The results above mentioned show that not only porosity but also pore structure affect the mechanical performance of porous material dramatically.

The crystalline structure of sulfur electrode was characterized by using X-ray diffraction (XRD, Rigaku Co).
MWNTs, GNFs and VGCFs have network-like structure of nano size as shown in Figure 1(d)-(f).
This structure was expected to give electrical connection and structural stability of sulfur electrode as physical binder.
This reason may be aggregation of active sulfur (or polysulfide) and breaking of electrode structure during charge/discharge.
Dean: Lange's Handbook of Chemistry, 3 rd Ed (McGrawHill, New York 1985) [5] Byoung Ho Jeon, jin Hee Yeon, In Jae Chung: Journal of Materials Processing Technology.

Semarang No. 5, Malang 65145, Indonesia 3Department of Chemistry, Faculty of Mathematics and Natural Sciences, Institude of Technology Bandung, Jl.
AC has an amorphous structure so it has low crystallinity.
Inorganic Chemistry Communications, 143, 109700
Nano-Structures & Nano-Objects, 21, 100407
Physical Chemistry Chemical Physics, 18(1), 21-46

%SiC steels, not only changed morphology and chemistry of black particles but also reduced friction coefficient and volume loss.
At distance far away from the black particles, the dissolved carbon atoms precipitate as cementite (Fe3C) in pearlite structure.
The area fraction of black particle and matrix structure were performed by using optical micrograph.
At distance far away from the black particles, the dissolved carbon atoms precipitate as cementite (Fe3C) in pearlite structure.
Additions of graphite decreased the black nodular/vermicular particles but increased pearlite/bainite structure.

College of Chemistry and Bioengineering; Guilin University of Technology; Guilin 541004;China 2.
The broad and diffuse peak, namely featureless appearance, is typical of the amorphous structure.
To obtain further information on the structure of the prepared nickel hydroxide, Raman spectroscopy was performed.
The structure and property of the sample were characterized by XRD, EDS, Raman spectra, and TG analysis.
Materials Chemistry and Physics, 2009, 114(2-3): 618-623

Such features of the crystal structure of montmorillonite determine the specific properties of bentonites and their applications.
In all infrared spectra of bentonite, the entire set of absorption bands characteristic of the structure of montmorillonite is observed.
In the second region of 1400–400 cm-1 there are absorption bands characteristic of the silicate structure.
Tyurina et al, Transformation of the structure and adsorption properties of montmorillonite under thermochemical action, Geochemistry. 64 (2019) 300–319
Sirotkin, Chemistry (Fundamentals of unified chemistry), KNORUS, Moscow, 2017