The review of long-lasting investigations at Department of Metallurgical Engineering, Technical Faculty in Bor, University of Belgrade in the field of thermodynamics and phase diagrams of numerous gallium-based systems is presented in this paper. The results of investigation of some binary and ternary systems, obtained experimentally...

By Dragana Živković

Modern hydraulic binder Portland cement (PC) was before, and it remains today one of the most popular and widely applicable building materials, that is, considering the amount of production, the first in the world among industrial products. Conserving natural resources and environmental protection have led the cement industry to beco...

By Jelica Zelić

Innovative idea of the device for detecting microstructure changes, concept and construction was carried out and controlled by authors of this article in cooperation with Slovenian industry. Since the electrical resistance is one of the most structurally sensitive properties of the materials, we used its measurement to detect microstructural change...

By Milan Bizjak, Blaž Karpe, Borut Kosec, Aleš Nagode, Goran Brovč, Mirko Gojić

Partially crystalline metallic glass ZrCu was prepared in the form of ribbons by melt-spinning. The chemical composition and homogeneity of the samples alongside partial crystallinity with the existence of an amorphous matrix was confirmed. The measured value of microhardness shows a nonlinear dependence with the increase of Cu. By adding a small f...

By Kerim Hrvat, Amra Salčinović Fetić, Ljerka Slokar, Matej Lozančić, Andrija Franjković, Senad Hatibović, Suada Sulejmanović

This paper describes the behavior of welded steel components NN-70 in the presence of defects such as cracks in the operation of variable load. Knowing the conditions under which the particular construction operates and knowing the welding technology of the same, we can solidly calculate and assume the remaining life of exploration. By assessing th...

By Dženana Gačo, Zijah Burzić, Fadil Islamović, Nermin Bišćević

In this paper the synthesis of nanoparticles of iron oxide from aqueous solution was carried at temperatures of 10, 20, 30, 40, 50 and 60 °C and with a different precipitation rate controlled by addition of a precipitating agent. The possibility of synthesis of ferrofluid with different ratios of reactants (FeCl2 and FeCl3 solution and NH4OH) w...

By Pero Dabić, Damir Barbir, Bruno Moranduzzo

This study has examined the process of sintering of Mg0 samples (80 % precipitation) obtained from seawater at a temperature of 1600 ºC with time until the sintering temperature is obtained, in order to examine their properties (density, porosity) and chemical composition after sintering. The prepared magnesium oxide samples are distinguished ...

By Miroslav Labor, Marina Perić, Jelena Jakić, Vanja Martinac

One of the basic supplements that regulates the relationship between the base and acid components during the technological process of sintering is limestone (CaCO3). By adding the same will be made on a new phase in the sinter compounds that may have positive or negative effects on the quality of the same. To be able to fully monitor the phase tran...

By Amel Zahirović, Selvedin Hrustić, Farzet Bikić, Neven Ukrainczyk

Steel shot is used in foundries as a means for mechanical cleaning of castings. Due to wear (mechanical damage) there is a change in size of shot. After some time of use steel shot it becomes unusable for shot blasting process and becomes waste. Studies have shown that this type of waste has good adsorption properties and it is suitable adsorbent f...

By Anita Štrkalj, Zoran Glavaš, Krešimir Maldini, Damir Hršak, Ivica Šipuš

Opencast mines are a part of the systems with the worst influence on all environmental components (air, water, ground, flora and fauna). In the case that we completely left out safeguards, dust emission would have a significant impact on the health of employees and the local population. Dust emission from quarries belongs to fugitive emissions and ...

By Šefket Goletić, Amina Ahmić