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The OPC is a heterogeneous fine grained material consists of four main solid phases namely Tricalcium Silicate (, Alite), Dicalcium Silicate (, Belite), Tricalcium Aluminate (), Tetracalcium Alumino Ferrite ().
Acknowledgements This research is funded by Funds for Science and Technology Development of the University of Danang under grant number B2016-DNA-30-TT.

However, a limited number of studies have been conducted on optimizing the wear behaviors of plasma-sprayed coatings [9-13].
As shown in Figure2a, a small granular about 30-60um in size that distributes evenly and closely seemed to be apparent, while the SEM photograph in Figure2b shows the porous surface with much unmolten crystalline formed and recrystallised grains is less in the thick coatings, where the structure of the surface becomes much looser.

In thick film technology, the device fabrication process consists of several stages simple and repeated according to the type and number of layers used.
Because the mechanism of interaction between the sensors with gas only occurs on the surface of grains of metal oxide particles, the use of nanomaterials will obviously increase the sensitivity of the sensor [13-14].

To hasten the solidification of liquid glass, it is required to apply a curing agent, e.g. sodium silicofluoride, which accelerates the process via the formation of colloid silicic acid which thickens due to syneresis, thus forming gel which cements filling material grains [2].
On further decreasing of ionic potential of the cations, quick-setting materials (MgO, La2O3, ZnO, CdO) are formed, whereas in a number of cases orthophosphoric acid interacts with oxides СаО, ВаО, МnO over-intensively, thus decreasing the solidification rate of the products.

The hardness of graphite is low, and it is easily removed at the time of friction to form abrasive grains, which can play a certain lubricating effect and will not cause serious wear on the impact cylinder [15,16].
Considering that the larger the model size, the more the number of meshes, the longer the calculation time.

Fragile silicates and alumina are destroyed in the process of thermomechanical processing in the manufacture of pipe rolling, increasing the number of traps.
The second part, probably, remains on dislocations, passing in micro-cracks, and also goes on the formation of new fine carbide particles; relatively large carbide particles are formed at the grain boundaries between perlite and ferrite.

The macrostresses in the unit cells are calculated as the volume-averaged of the corresponding microstress component [14]: where V is the total volume , V k is the volume of the k-th element,  is the volume-averaged stress in the k-th element,  is the volume-averaged strain of the k-th element and Nf,m is the total number of elements (f=fibre, m=matrix).
[4] Chawla, K.K., Grain boundary cavitation and sliding in copper/tungsten composites due to thermal stresses.

The traditional methods to prepare nanoparticles are rather complicated; they involve a number of different steps with multiple microstructural problems that may have a detrimental effect on the magnetic performance.
It exhibits a narrower grain-size distribution, with the average particle size being 280 nm.

Remeshing is governed by a local adaptivity criterion which utilizes the accumulated plastic deformation and number of elements increases from 1900 to 6706.
These codeposited elements and codeposition of possible impurities contained in the work electrolyte can cause deformations in crystal lattice of the chromium, which increase the density of the dislocations and decrease their mobility), but the yield stress of the thin chromium film is higher than the yield stress of bulk chromium largely by reason of its fine grain size, due to the presence of surface-active addends during the process of electrodeposition).

Initial measurements showed considerable scatter, the most likely cause of which was considered to be sensitivity to small errors in the positioning of the tokens (a known difficulty with this method of unstressed lattice parameter determination) plus the possible presence of larger grains within the material.
The measurement uncertainties derive from a number of sources including the unstressed lattice parameter and errors in peak fitting and the elasticity constants.