Mico Mitrovic

• PhD
• Professor (Full) at University of Belgrade

This study investigates the growth of {100} KDP crystal faces under varying supersaturation conditions of 6.2–14.7%. The findings indicate that the positions of growth rate maxima differ between experiments where supersaturation increases or decreases, with higher rates associated with decreasing supersaturation. Surface analysis via SEM and AFM re...

The results of the study of the influence of a static magnetic field of 55 ± 3 mT on the growth rates of diamagnetic sodium chlorate crystals in the direction ⟨100⟩ will be presented. Two groups of experiments were performed in the same solution supersaturation range of 0.89-1.78%, the first in zero field conditions, and the second in an applied ma...

Sodium chlorate crystals were obtained by evaporating drops of saturated aqueous solution in both, ambient conditions, and at a constant temperature in a closed container. The aim of the research was to examine crystallization patterns after slow evaporative drying of sodium chlorate solution drops in a magnetic field. Figure 1a-d. Observed pattern...

Dependence of growth rates of {100} sodium chlorate crystal faces on solution supersaturation in the range of 0.44–1.32% was analyzed. It has been shown that the growth rate dispersion does not have a consequence only in the growth parameter differences predicted by specific crystal growth theory but that individual crystal faces may grow with diff...

This work was conducted to investigate the understanding of the concept of real image observation among students and teachers of physics. We studied the implications of inadequate explanation of the role of the eyes in the observation of the real and virtual images of an object and in understanding the laws of geometrical optics. The eyes have been...

The results of the effect of the growth history on Potassium Dihydrogen Phosphate (KDP) crystals growth mechanism are presented in the paper. Crystals were grown in temperature range of from aqueous solutions, saturated at . Two types of the experiments were performed. In both types, after the nucleation at crystals were grown at the same temperatu...

Difficulties in determining crystal growth mechanism from growth rate versus solution supersaturation dependence are discussed. Obtained results indicate that in the supersaturation range of 0.66 – 1.56%, sodium chlorate crystals grow in accordance with the spiral growth model. It is shown that in the supersaturation range of 0.44 – 1.32% growth me...

Effects of partial dissolution and refaceting on growth rates of sodium chlorate and potassium dihydrogen phosphate (KDP) crystals are presented. Under the same external conditions, crystals of sodium chlorate and KDP exhibit growth rate dispersion (GRD), prior to dissolution and after refaceting. These GRDs were described by multiple normal distri...

Results of investigation of correlation between the {100} face growth rates of small sodium chlorate crystals and the relative solution supersaturation, are presented. Dependence of growth rate of a crystal, R, on relative supersaturation of the solution, σ, is usually described with different equations, according to a different crystal growth mode...

The results of investigations of {100}, the nongrowing faces of sodium chlorate crystals in supersaturated solutions, are presented. It occurred that some of the faces did not grow, whereas the neighbor faces of the same crystals grew. The dissolution and refaceting of the crystals did not affect the probability of the nongrowing face appearance an...

Results of investigation of the influence of partial dissolution on sodium chlorate crystal stabilized growth rates indicate the existence of one dominant maximum in the growth rate distributions in <100> direction .

The results of the investigations regarding the growth and the dissolution behavior of small sodium chlorate crystals at temperatures near saturation temperature of (31.00±0.02)°C are presented. Above this temperature all the observed crystals dissolved, as was expected. At temperatures between 30.5°C and 31.0°C coexistence of growing, non-growing...

Results of investigations of the changes in growth rate inherent to crystals (i.e., independent of macroscopic external conditions) during a 15-h growth period are presented. The results of the investigations regarding the time evolution of the growth rate dispersion are also presented. The majority of the investigations were carried out with sodiu...

The constancy of stabilized sodium chlorate crystal growth rate is investigated. After the growth rate stabilization, solution supersaturation was altered and then the initial one was restored, which resulted in fast restoring of the growth rate existing prior to the supersaturation change. It is thereby shown that stabilized growth rate is indeed...

Results of investigations of the growth rate changes inherent to the crystal are presented. It is shown that, in initial growth stage, there exist crystal growth rate changes independent of experimental conditions, with tendency to level during the time. Time evolution of sodium chlorate crystals growth rate dispersion is also presented. The result...

The effects of gamma irradiation on the structure and properties of hydroxyapatite/poly L-lactide (HAp/PLLA) biomaterial have been investigated. Effects of radiation on microstructure, degradation of polymer part and thermal stability of composite were determined by scanning electronic microscopy (SEM), gel permeation chromatography (GPC) and therm...

Growth rate dispersion (GRD) represents the variations in the growth rates of different crystals of the same material, grown under the same conditions. Mostly, these dispersions are decribed by asymetrical distributions with one maximum, and skeved to the right (log-normal and gamma). Recently, it was shown that the GRD of a crystals can be describ...

The crystallisation behaviour of calcium phosphate glass containing vanadium oxide was studied. Glass with a molar ratio of [CaO]/[P2O5] = 1.13 and a V2O5 content of 8 mol.% was prepared for the experiments. The crystallisation of bulk glass samples was performed tinder isothermal conditions at T = 650-820 degrees C. The surface crystallisation mec...

External magnetic field influence on silicon submicron surface periodic structures obtained by the action of nitrogen supersonic quasistationary compression plasma flow (CPF) is studied. CPF is generated by magnetoplasma compressor. It was found that, without external magnetic field, highly-oriented silicon periodic cylindrical shape structures are...

Results of the numerous crystals behavior observations in various supersaturated sodium chlorate solutions are presented. Significant differences in the growth rate of various crystals were observed, even though they were grown under the same external conditions. Size-dependent crystal growth was studied. In particular, growing and non-growing crys...

The connection between growth rate dispersion and the size-dependent crystal growth of potassium dihydrogen phosphate is investigated. A possible resolution of the existing confusion in the size-dependent crystal growth investigations is suggested. It is shown that size-independent growth exists if the crystals belonging to one growth rate distribu...

The phase evolution in a calcium phosphate glass with the molar ratio [CaO]/[P2O5] < 1, to which 6.4 mol% TiO2 and 10 mol% Al2O3 were added as nucleation agents, was studied. The results indicate that the primary phase β-Ca2P2O7 is formed during surface nucleation and crystallization which are dominant at T < 930°C. No presence of metastable calciu...

The crystallization behavior of calcium phosphate glass powder with the molar ratio [CaO]/[P2O5] = 0.88, to which 6.38 mol% TiO2 and 10 mol% Al2O3 were added as nucleation agents, was investigated. The results indicate complex crystallization behavior which depends on the powder particle size and the crystallization temperature. In the crystallizat...

The results of investigations of the connection between the growth rate dispersions and the size dependent crystal growth of potassium dihydrogen phosphate (KDP), Rochelle salt (RS) and sodium chlorate (SC) are presented. A possible way out of the existing confusion in the size dependent crystal growth investigations is suggested. It is shown that...

The crystallization of a multicomponent glass containing 1.63 wt% of F− anions was studied. The results show in powder glass with particle sizes less than 0.15 mm, that surface crystallization is dominant, whereby two phases: leucite and dioside are formed. In glass powder or particle size about 0.15 mm, three phases, phlogopite, diopside and leuci...

The influence of significant dissolution and refaceting of KDP and Rochelle salt crystals on their further growth is studied. It is shown that the crystal growth rate - initial crystal size dependence is better defined for growth after refaceting. Initial conditions for growth of individual crystals after refaceting are better defined, than in the...

The interaction of a transversely excited atmospheric (TEA) CO2 laser with austenitic stainless AISI 316 and high-speed tool AISI M2 steel is considered. The results have shown that both types of steel were surface modified by the laser beam, for the laser energy densities used. Morphological features on the AISI M2 were more prominent in compariso...

The possibility of using some empirical equations to describe the crystal growth rate versus the crystal size dependence is discussed. The growth of small KDP and Rochelle salt crystals was considered. It is shown that the dependence of the crystal growth rate on the initial crystal size is linear, or probably, more complex, but there is no reason...

The paper presents the results of the study of aluminosilicate glass that contains 0.77 wt% of F– anions. The results show that thecritical size of glass particles at which the surface mechanism ofcrystallization changes to volume crystallization is in the vicinityof 0.075 mm in this glass. The temperature of the maximum nucleationrate was determin...

Preparation of aluminosilicate gels bulk, containing 12-tungstophosphoric acid (WPA) in mesopores, as well as their structural and conduction characteristics are reported. Doped gels are prepared from aluminum–silicon alkoxide AlSi(OR)x, iso-propanol, water and WPA·29H2O mixtures. Characteristics of the obtained doped gels depend on the WPA content...

The growth rate dispersion of small KDP crystals grown from aqueous solution was studied. These dispersions were described by a mixture of normal distributions with three maxima which were fitted to the frequency distributions of growth data. Dislocation structure of individual crystals and varying degrees of strain in crystal lattice were consider...

This letter deals with the growth rate dispersion of small KDP crystals grown from aqueous solution. It was shown that the distribution of growth rates has two maxima, in contrast to previously studied growth rate dispersions, which were described by distributions with one maximum. The dislocation structure of individual crystals and the varying de...

The growth rate dispersion of small KDP crystals grown from an aqueous solution was studied. These dispersions were described by the mixture of normal distributions with three maxima which were fitted to the frequency distributions of the growth data. The dislocation structure of individual crystals and varying degrees of strain in the crystal latt...

Sol–gel syntheses offer a wide range of possibilities for introduction of materials with specific properties (electronic, optic and ion-conductive, etc.) into optically clear matrices. Preparation of silica gel bulk, containing 12-tungstophosphoric acid (WPA) in mesopores, as well as its structural and conduction characteristics are reported. Chara...

This Letter deals with the growth rate dispersion of small KDP crystals grown from aqueous solution. It was shown that the distribution of growth rates has two maxima, in contrast to previously studied growth rate dispersions, which were described by distributions with one maximum. The dislocation structure of individual crystals and the varying de...

In order to determine the mechanism of diamond-like film deposition in a r.f. discharge in methane, a tiny glass fiber was spanned along the discharge axis and perpendicular to the parallel-plate electrodes. The discharge was operated in a symmetric and slightly asymmetric regime. The film thickness and its surface topography were analyzed by means...

It has been shown that a strong correlation exists between the growth rate of large Rochelle salt crystals and that of their seeds, although the crystal seed-crystal border has many defects. Large crystals grow at higher growth rates from seeds that grew at higher growth rates. Processes of partial dissolution and refaceting of the crystals did not...

The phase transformations of 12-tungstophosphoric H3PW12O40-29H2O (29-WPA) acid in the temperature range from ambient temperature to 1150C were investigated and characterized by differential thermal analysis (DTA), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), X-ray powder diffraction (XRPD), scanning electron microscop...

The influence of initial crystal size on crystal growth rate is studied. It was shown that in individual experiments with growth of Rochelle salt and MnCl2 · 4H2O crystals, there exists a significantly higher correlation between the initial crystal size and linear growth rate than in the cases when correlation between these quantities is studied fo...

The linear growth rates in the direction normal to the (100) plane of small (0.1–0.5 mm) MnCl2·4H2O crystals have been measured at various temperatures and supersaturations. Significant variations in growth rate between different crystals were observed and these variations have been fitted to three different theoretical distributions: one which is...

The linear growth rates of small (0.1–0.5mm) MnCl2 · 4H2O crystals from aqueous solutions in the direction normal to the (100) plane grown with and without a magnetic field have been measured at various temperatures and supersaturations. The application of a magnetic field during crystal growth rate of the majority of the crystals. It is shown that...

The growth rates of small (length <1 mm) crystals of Rochelle salt grown with and without a magnetic field have been measured at constant supersaturation (4%). It has been shown that some crystals grown in the presence of a magnetic field exhibit a decrease in the linear growth rate in the [010] direction relative to that shown under normal conditi...

The effect of a magnetic field on the growth rate of small Rochelle salt crystals from aqueous solutions was studied. The application of a magnetic field during crystal growth changes the growth rate distribution and slows the growth of the majority of crystals. The influence of the applied field has been explained in terms of changes on the surfac...

The effect of a magnetic field on the growth rate of small Rochelle salt crystals from aqueous solutions was studied. The application of a magnetic field during crystal growth changes the growth rate distribution and slows the growth of the majority of crystals. The influence of the applied field has been explained in terms of changes on the surfac...

The growth rates of small Rochelle salt crystals from aqueous solutions in the [010] direction at various temperatures and supersaturations were measured. Considerable variations of the growth rate were observed under the same external conditions. Depending on the conditions under which the crystals grow, the observed variations of the growth rate...

Synthesis, Bridgman-Stockbarger crystallization and some characterization data of two new substances, PbCo2(PO4)2 and Pb2Co(PO4)2 are presented. The size and the shape of the crystals as a function of various growth parameters were studied. The dielectric permitivity suggests a high purity and perfection of the grown crystals. The unit cell paramet...