MINING HOTSPOTS-POTENTIAL IN EXPANDING THE CHEMICAL AND PHYSICAL APPLICATIONS OF NANOMATERIALS
Nanometalic materials are at the present moment the most commercialized class of nanomaterials. Methods for their synthesis and exploitation of the physical phenomena of their behaviour on atomic level are ever-expanding. Their prices are sometimes too high and in lowering the price, finding the new recourses of raw materials, would ...
By Suzana Gotovac-Atlagić, Siniša Vučenović, Toni Nikolić, Anđela Tomić, Dragana Stević
DEPOSITION OF Al THIN FILM ON FeCrAl ALLOY AND CONTINUOUS ELECTRICAL RESISTANCE MEASUREMENT
FeCrAl alloys are used in a wide range of resistance and high-temperature applications such as wire heaters, furnace structure parts, etc. Their oxidation resistance at elevated temperatures relies on the formation of a thin and a continuous Al2O3 layer on the alloy surface. Growth and thickness of the protective Al2O3 layer depends ...
By Stojana Vesković, Janez Kovač, Peter Panjan, Damjan Klobčar, Milan Bizjak, Blaž Karpe
INFLUENCE OF MICRONIZED GRINDING FILLER ON THE RHEOLOGICAL PROPERTIES OF COATINGS BASED ON CORDIERITE
For the development of refractory coatings with controlled rheological properties the influence of micronized milling process was investigated. Change the properties of fillers based on cordierite, primarily on changing the size and shape of grain fillers, dispersion and stability of the suspension of the coating was investigated, al...
By Marko Pavlović, Marina Dojčinović, Tatjana Volkov-Husović
MEDIEVAL FORTRESSES IN BOSNIA AND HERZEGOVINA - CAUSES, CONSEQUENCES, REMEDIAL STEPS, INTERVENTIONS AND UPGRADING TECHNIQUES
There is something inherent, compelling and mystified in ruins and remains of the old fort. The issues logically imposed at the first encounter with these witnesses of the past are linked to their current condition, age and role in history. Historically, all those fortresses were more than the fortified military structure. They have ...
By Amir Čaušević, Nerman Rustempašić, Lana Kudumović
ANALYSIS OF USE OF PAULOWNIA ELONGATA AS AN ALTERNATIVE FUEL IN THE CEMENT INDUSTRY TO REDUCE EMISSIONS OF POLLUTANTS
Today there is a growing research activity in order to investigate the possibility of using various waste or alternative materials in the cement and other industries. In this paper the possibility of using wood paulownia (lat. Paulownia elongata) as a completely new type of alternative fuel has been analyzed. Its applicability in cement industry in...
By Zehrudin Osmanović, Nedžad Haračić, Jelica Zelić
RECYCLING REFRACTORY WASTE FROM THE IRON AND STEEL INDUSTRY
Refractory materials are an important part of industrial furnaces and metallurgical aggregates. With time and use, the wear out of refractory materials ocures and their replacement becomes necessary. Part of refractory material, which is removed after the demolition of industrial furnaces and metallurgical unit refractory linings, represents refrac...
By Menzur Plaćo, Omer Kablar
THERMODYNAMICS AND PHASE DIAGRAMS OF GALLIUM-BASED MULTICOMPONENT SYSTEMS
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
DEVICE FOR IN-SITU DETECTION OF MICROSTRUCTURAL TRANSFORMATIONS
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
EFFECT OF TEMPERATURE AND PRECIPITATION RATE ON THE SYNTHESIS OF NANOPARTICLES OF IRON OXIDE SUSPENSION (FERROFLUID) FROM AQUEOUS SOLUTIONS
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
DETERMINATION OF DISTRIBUTION COEFFICIENTS OF ADSORPTION SYSTEMS WASTE STEEL SHOT / HEAVY METAL IONS
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