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Introduction Multiferroic materials with coexistence of at least two ferroic orders (ferroelectric, ferromagnetic, or ferroelastic) have recently stimulated a sharply increasing number of research activities for their scientific interest and significant technological promise in the novel multifunctional devices [1-3].
It was clear that dense, homogeneous, and fine-grained powders, with average particle size of 50 nm, were prepared at 800 ºC.

The main phase composition of a porcelain body is constituted by a heterogeneous glassy matrix and needle-shaped mullite crystals together with some quartz grains and closed irregular-shaped pores.
Table 1: Compositions with substitution of quartz by POFA (wt %) Mix Number Clay Feldspar Quartz POFA AP1 50 25 25 0 AP2 50 25 20 5 AP3 50 25 15 10 AP4 50 25 10 15 AP5 50 25 5 20 AP6 50 25 0 25 Results and Discussion X-Ray Fluorescence (XRF) analysis is proficient in analyzing material contents inside POFA, hence the amount of SiO2 can be observed.

The torque M and the number of revolutions N were recorded and converted to von Mises equivalent stress s and equivalent strain e at the surface: and (5) where R and L are respectively the radius and the length of the gauge, is determined at constant strain, and at constant strain rate.
Grain evolution analysis and experimental validation in the extrusion of 6XXX alloys by use of a lagrangian FE code, Int.

In the course of deformation, and simultaneously, a number of processes occur, namely: the deformation of austenite, the phase transformation induced deformation g®e and e®a’, and also the deformation of austenite and martensite both by slip and by twinning alike.
In turn, the lowering of the intensity of them in case of the higher degrees of deformation may be explained by the formation of the e martensite from the grains of those orientations, because they are privileged, and it is in them that the g®e transformation occurs first.

Researches on material properties were mainly focused on impurity elements (such as P, S, Mn elements), yield strength and grain boundary carbide [1].
At the same time, a large number of intergranular fracture morphology (Fig. 6) was found, indicating that the rotor material was brittle.

The products stored at 37˚C, the total number of colonies were determined, and the results showed that the products reached the standard.
[9] Xia Yixun, Zhong Fang, Li Yue: Journal of grain and oil, Vol.8(2011), p.4 -6,in Chinese

Introduction Presently the AWJ technology is still a subject of discussion, which is proved by a number of publications.
Other conditions under which were the experiments performed: Constant material parameters: - cut material thickness 10 mm Constant technological parameters: - working medium pressure 380 MPa - abrasive type Australian garnet (AG) - abrasive grain size MESH 80 - water nozzle diameter 0.25 mm - abrasive tube diameter 1.02 mm Changing material parameters: - cut material indication steel 12 050 and 11 523 Changing technological parameters: - cutting velocity 40 mm/min, 100 mm/min and 400 mm/min Production system and place of experiments The experiments were carried out in the Liquid jet laboratory IF HGF VŠB TU in Ostrava using production system with abrasive water jet.

Generally, when developed in the medium-bedded, moderate-size, grain-supported medium-fine sandstone intervals, its thickness, density, number and frequency tend to get a relatively increase Lateral distribution characteristics.After studying the developmemt position of calcareous interbeds in the coring well intervals, it shows that calcareous interbeds are more likely to develop in the underwater distributary channel, and can be partly distributed in the underwater natural levee.

As a result of the high cooling rate during spray forming, spray-formed materials have much finer and more homogeneous grain structures than the conventional made ones [1, 2].
When the tempering temperature reaches 600oC, it is can be seen in Figure 6d that a larger number of carbides precipitated from the matrix and the matrix phase transforms to equiaxed ferrite which will lead to a large drop in hardness.

There are number methods for the HAP coating on titanium alloy and among them thermal spray is the most widely applied method for this coating process.
Relativelly smaller and more irregular HAP grains can be achieved for HAP+CNT coated layer as compared with HAP coated layer.