CERAMICS MATERIALS MICROSTRUCTURE PROGNOSIS WITHIN THE ALTERNATIVE ENERGY SOURCES AND STRUCTURE FRACTAL NATURE FRONTIERS

Abstract

Doped ceramics materials structure can be controlled using different synergetic effects as well as
consolidation parameters. Additives concentration influence on ceramics microstructure and
dielectric properties, based on fractal geometry, is analyzed. These properties level control level is very
important in advanced materials prognosis. The Coble's two-sphere model is used as initial one, for
developing a new two-ellipsoid model; unlike the spherical geometry, the ellipsoidal-polyhedral
geometry,besides better approximation of sintering particles, is in relation with consolidation
parameters (sintering time and temperature). The experiments have been based on BaTiO3 with
different additives (CeO2, MnCO3, Bi2O3, Fe2O3, Nb2O5, CaZr2O3, Er2O3, Yb2O3, Ho2O3), concentration
from 0.01wt% to 1wt%, consolidated under the pressing pressure up to 150 MPa and 1180°C-1380°C
sintering temperatures, are used. We performed SEM and EDS analysis.
The fractal nature offers a new approach for the ceramics structure analysis, describing, prognosis and
modeling the grains shape and relations between ceramics structure and electric-dielectric properties.
The microstructure has a great importance from different alternative energies points of view.
World’s interest race in renewable and new generation energy sources development, especially the new
batteries systems, are in research and development focus, simultaneously, in the electric cars
technologies development. Beside the electrochemical processes and rechargeable speed, the storage
capacity has special significance which is enriched by the fractal natureanalysis and these scientific
paper contributions with some fundamental electrochemical laws through fractal corrections expressed
by the relevant formulas. These are the new frontiers in direction of electrochemical fractal
microelectronics. Also, the wind energy as new and alternative energy source has important role
growing.
The land and obstacles of fractal nature, influence on air/wind turbulence towards the wind generators
propellers, has special effect on the wind speed, described by the logarithmic law equation which is
deduced from the similarity theory that is strictly applicable to steady-state horizontally homogeneous
conditions in the surface layer. So, definitely in this paper the fractal nature independently existing
everywhere within the structures, contact surfaces, practically, from microstructures, even on nano level
up to global bulk and massive shapes, fractal nature ceramics materials existence is completely
confirmed within the electrochemical thermodynamic and fluid dynamics parameters, are confirmed.