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Vickers macrohardness were measured for a number of stages of the different alloys, using the equipment Wolvert, Dia Testor 2Rc.
During aging the depth of this zone increased in samples with high silicon content, and high solution temperature where several recrystallized grains was seen.
The long dimension was measured on negatives from a number of specimens; mean values are shown in Fig. 4b as function of aging time.
High iron and silicon content will increase the number of primary particles in the alloy.
By solution treatment at a low temperature Mg2Si-particles are retained, which will reduce the amount of magnesium in solid solution, suppress the formation of GP(I)-zones and reduce the number of η'-precipitates.

Structures manufacture of complex effective hollow sections, on the one hand, allows us to focus on conventional materials (heavy ordinary and fine-grained concretes), on the other hand, it increases their manufacture complexity many times over.
There are a number of works devoted to non-autoclaved gas concretes on the basis of composite binders of various types, makeups and production methods, which generally confirm the effectiveness, and availability of this direction.
The stone hardening dynamics based on composite binders with mineral additives of various genetic types: a) CCB; b) CCW; c) QSCW; d) GS The porous system contains a sufficiently large number of aluminates, both contained in portland cement and introduced by the gassing reaction.
The binder has the highest viscosity with the addition of crushed ceramic bricks (refer with Fig. 1) that is probably related to the developed microporosity of the additive particles that is mentioned in a number of papers.
As it was established in a number of works [11, 12] additives CC and CCW have among those examined the highest grindability and activity on Ca (OH)2 absorption (refer with table 2) that explains their good strength properties.

With a considerable number of alkali metal oxide adjusting the density and thermal expansion coefficient difference between glass and crystallinesubstance, the micro-relief structure of characteristics of geometrical optics is produced.
The angular width of diffraction peaks is wider than angular resolution of the experimental setup, and the bigger diffraction peak half width, the smaller crystalline grain.
No measurements of the specific absorption of iron were made for the glass but the number above can be used for rough estimations, which gives the total concentration of ferric ions of about 3 ppm.
When the exposure dose is lower than this value, insufficient number of photoelectron produce, and insufficient number of elemental silver crystal nucleus form.

All of that is because of its unique properties which makes it the number one choice over all other materials.
We notice with the increase of the quantity of (WPMS) particles as well as its increasing volumetric percentages, the tensile strength values decrease gradually till it fails collapses, and that is due to the small interface area between the adhesive material (UPS) and the number of particles obtained from the increase of volumetric ratios of the particulate matter.
That is especially true if the amount of particles is large, making it difficult to penetrate into the cavity of the adhesive material, and a number of internal defects may arise that cause the collapse of the overlaying material with the least load applied [21].
This is due to the weak bonding in the composite material when increasing the number of particles, and the cracks that are formed around (WPMS) particles may merge with each other while applying load to it.
Sallal , K. k. kahlol, “ Effect the grain size on the polymer matrix composites reinforced by Reenia particles” Al-Khwarizmi Engineering Journal, Vol. 9, No. 2,(2013), P.P. 94 -102

The samples contain the natural iron ore grain.
The sintered amorphous based material gains in strength from the natural iron ore grain for they are as the aggreate.
Table 1 Sintering conditions of sample adobes Sample number A B C D Glass powder content/% 10 15 22 25 Maximum sintering Temperature /˚C 1150 1080 1030 1000 Heating rate /˚C·min-1 170 170 170 170 Holding time of maximum temperature /min 45 45 45 45 Testing of the Sintered Samples Physical properties testing of the sintered samples.
Table 2 Physical properties of samples Sample number A B C D Marble Granite Density/g·cm-1 2.3 2.5 2.5 2.6 2.71 2.61 Compressive strength /MPa 41 88 94 50 98 120 Tensile strength /MPa 3 5 5 4 5 7 Bending strength /MPa 15 22 28 18 17 15 Hydroscopicity/% 0.04 0.01 0 0 0.03 0.23 Acid resistance /% 0 0 0 0 10.3 0.91 Alkali resistance /% 0 0 0 0 0.28 0.08 Radioactivity 0 0 0 0 - - The testing results indicate that the mechanical strength of the sintered material relate to the glass powder content of the sintered raw material.

The diffusion resistance around the grains is significant and affects negatively the adsorption capacity.
By increasing the stirring speed, the rate of diffusion at the level of boundary layer (around the grains) becomes higher because of the improvement of the turbulence and the reduction thickness of boundary layer.
This phenomenon can be allotted to the fact that at the beginning of adsorption the number of available adsorption sites of the adsorbent materials is more significant than that of the remaining sites after a certain time.
The Elovich model equation is given by (9) Where  is the initial sorption rate (mg.g-1 min-1) and  is a constant (g.mg-1) relating to the number of available sites.

Studies of voids in single metal crystals under shock loading have shown collapse of voids in the wave of the shock and formation of nano-grains [3,4].
Studies of nanocrystals under shock loading have shown suppression of grain-boundary sliding mechanisms and improvement in hardness and flow strength of shocked samples [5,6].
The dislocation density is measured by finding number of core dislocation atoms in the simulation (possessing nearest neighbors between 10 and 13, leaving out perfectly coordinated atoms with 12 neighbors) and calculating length of dislocation line per unit volume of system.
Visualization of the dislocation structure is performed using coordination number coloring using Atomeye [20].

However, with all their well-known advantages, cement compositions have also a number of drawbacks; their tensile strength is one order less than their compressive strength; they show a tendency to shrinkage.
Increase in strength, crack resistance, impermeability of cement composites will ensure dispersed reinforcement and the maximum possible number of electro-heterogeneous contacts between the cement hydration products and fiber surface.
(In Russian) [21] Babushkin, V.I., Plugin,A.A., Kostyuk,T.A., Matvienko,V.A.Influence of surface active centers on the strength of fine-grained concrete,Scientific bulletin of civil engineering, Kharkiv,KhSTUBA, 1998,V.5, pp.85-88.
Manage strength fine-grained concrete after forming on the basis of the calculation electrosurface properties of its composition, Kharkіv: KhSTUBA, 1999, No7, pp.63-67.

The density of the crucible material determines its stability (the number of heat changes).
This is because high-temperature grain boundary diffusion of defects in the crystal structure is inhibited in a single crystal.
The density of dislocations on micrographs was determined using the following dependence: ρ=Mtn1L1+n2L2 (1) where M is the magnification on a photomicrograph; t – foil thickness; n1, n2 - the number of intersections with horizontal and vertical lines, respectively; L1, L2 - the total length of horizontal and vertical lines.
The substructure has clear sub-boundaries with a homogeneous dislocation structure, without gradients in the density of dislocations, as well as their absence between the internal volume of grains and intergrain boundaries (Fig. 7b).

The FTIR spectrum is recorded in the wave number range of 1600–500cm−1 with a resolution of 4cm-1.
The average grain size of Mn-HAp samples, before and after incubation, is found to be in the range of 40-50 nm.
It is observed that longer the incubation duration, more is the number of particulates and larger is the size of grown apatite agglomerate particles.
Generally, ionic materials show two different arcs corresponding to grain polarization in lower frequency region and bulk properties in upper frequency region.