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The thermodynamic functions of the grain boundary segregation vary principally with the grain boundary structure.
(9) It means that at TCE the variations of DHI0 caused by the change of the grain boundary structure are compensated by variations of DSI0 caused by the same change of the grain boundary structure.
DGI0 is independent of the structure of the grain boundary and therefore, all boundaries exhibit the same concentration of the segregand [29].
Mabuchi, First-principles study in Fe grain boundary with Al segregation: variation in electronic structures with straining, Philos.
Chemistry and Physics of Fracture, Nijhoff, Dordrecht, 1987, pp. 388–415

It had the layered structure [29], which was highly diffusible and easily worn.
However, the AgxO had the layered structure which were easily worn.
Conclusion The structure, mechanical and tribological properties of ZrN-Ag films were investigated.
Material Chemistry and Physics, 2007, 102:31-38
Reaction steps of silicidation in ZrO2/SiO2/Si layered structure[J].

Most of the existing three-dimensional geological modeling software use explicit simulation to simulate various geological bodies, such as stratum, structure and ore body, etc.
However, Kriging interpolation does not consider the anisotropy of a variety of geological structures.
The structure of these tables is shown in Table I, Table II and Table III correspondingly.
The data structure of the sample points is shown in Table IV.
Table IV The Structure of Sample Points Number Field Types Length Describe 1 No.

The morphology and structure of samples were examined by XRD, FTIR and thermo-gravimetric analysis (TGA).
It seems that agglomerated structure that observed in the sample calcinated at 1100 °C was grown in many directions to give present structure.
It can be also observed that present structure led to the formation of holes (pores) between the crystals. 4.6.
The SrFe12O19 hexaferrites have ferrimagnetic structure consisting of five magnetic sublattices, as given in Table 3.
Kishi, Synthesis of Y-type hexaferrites via a soft mechanochemical route, Journal of Solid State Chemistry 177 (11) (2004) 3903-3908

The key property to tailorable xerogels/aerogels is the porosity – a high porous structure results in very low thermal conductivity and density.
Using MTMS or MTES precursors in a two-step acid-base catalyzed sol-gel chemistry, as proposed by Rao, Bhagat, Nadargi and co-workers [2,4-8], the obtained silica based xerogels and aerogels can fulfill the targets referred above.
For the case of MTES/methanol, the final materials were fissured monoliths with powdery surfaces, exhibiting the xerogels a weaker structure.
This structure appears to be independent of the used solvent and precursor, for the studied cases.
The xerogels/aerogels obtained using ethanol have nearly the same structure for both precursors.

Each HA unit cell has a hexagonal structure (Fig. 1.a) [2-4].
X-ray diffraction (XRD) (Shimadzu, R600) with CuKα 1.54060 Å was performed at the Chemistry Laboratory, FMIPA, UGM, to determine the crystal structure of CHA.
This O–H bond contributes to the hydroxyl in the CHA structure.
These peaks indicate the formation of the CHA structure.
The narrower peak indicates the better CHA structure.

Biogenic calcium carbonates can be found as important components of the internal bone or skeletal structure of vertebrates and the external shell of invertebrates.
Another twenty minutes saw the invaginations deepen and the tubules became a sausage-chain structure (Figure 1 G, H and I).
The chimera structure in Gallina N. meleagris yolk sac are composed of the birefringent cortex and the interior Maltese-cross insets in A, F and I.
The density alternations of two chimera structures are present in J, K and L.
In the Gallina N. meleagris yolk sac, the chimera liquid crystal and crystal structure has a birefringent cortex and an interior Maltese-cross as well.

Theoretical studies on electronic and molecular structures were conducted using quantum chemical calculations.
The chemical structure of the inhibitor TPP 2.2.
Figure 6.Optimized molecular structure of inhibitor TPP.
Journal of Molecular Structure. 1175 (2018) 398 ̶ 413. [18] M.R.
C 116 (2012) 13603–13615. [33] R.G.Pearson, Absolute electronegativity and hardness: application to inorganic chemistry, Inorg.

Exploitation of Ag3PO4 Impregnated Alginate Beads for the Photocatalytic Degradation of Dye Solution under Sunlight Irradiation Katnanipa Wanchai Department of Chemistry, Faculty of Science and Technology, Phranakhon Si Ayutthaya Rajabhat University, Phranakhon Si Ayutthaya, 13000, Thailand katnanipa@gmail.com Keywords: Ag3PO4-alginate beads, photocatalytic, methylene blue, sunlight irradiation.
Ag3PO4-alginate beads (AAB) were synthesized by simple precipitation method and their structure was characterized by XRD, FT-IR and SEM/EDS, respectively.
The spectra (Fig.2(c)) confirmed the presence of Ag3PO4 in the structure and established that each bead consisted on average of 36.9% Ag, 3.5% P, 21.5% O, and 12.1% Ca and 25.9% Cl.
These results indicated that the surface structures of AAB obtained carboxyl groups (-COO) and hydroxyl groups (-OH) of alginate (Fig. 7) which inherited negative surface charge.

Especially, calcium sulfate whisker with fibrous structure developed in recent years is further used in rubber, coating, plastic, adhesives, textile, papermaking, and many other industries due to its superior performance and characteristics of environmental protection and nontoxic.The paper reviewed the preparation technology of calcium sulfate according to the different raw materials, especially for industrial waste (by-product).
In particular, calcium sulfate whisker developed in recent years with fibrous structure can be widely used in rubber, coating, plastic, adhesives, textile, papermaking, and many other industries, which has characteristic with excellent mechanical properties chemical stability, non-toxic, environmental protection and low manufacturing cost.
Cui Yishun etc.[16] prepared the CaSO4 with whisker structure and appearance by atmospheric acidification with salt mud and H2SO4 as raw material.
Fan, Journal of Materials Chemistry, 2003, 13: 1817-1821