MACROSCOPIC METHOD FOR ASSESSING THE CONTENT OF NON-METALLIC INCLUSIONS - BLUE FRACTURE
Non-metallic inclusions usually deteriorate mechanical properties and surface quality of steel products. Presence of non-metallic inclusions might have negative affected some of the mechanical properties of steels like ductility, toughness, anisotropy, and formability. Macroscopic method for assessing the content of non-metallic inclusions in forge...
By Belma Fakić, Adisa Burić, Edib Horoz
NUMERICAL ANALYSIS OF THE STRESS CONDITION OF THE VESSEL UNDER PRESSURE
In this paper, a pressure vessel test is described which is viewed as an axis-symmetric structure in order to perform an initial check of the adopted model defined by the plate-like finite elements. This approach gives the possibility of comparing the results obtained for the stress and deformation field with the patterns of classical elasticity th...
By Nermin Bišćević, Husmira Bišćević
PHASE EQUILIBRIA OF THE Cu-In-Ni TERNARY SYSTEM AT 300 °C
This study reports experimental and thermodynamic investigation of the Cu-In-Ni ternary system at 300 °C. Isothermal section of the Cu-In-Ni system at 300 °C was calculated using optimized thermodynamic parameters for the constitutive binary systems from literature. Microstructure analysis of selected alloy samples after long time annealing...
By Aleksandar Đorđević, Milena Premović, Duško Minić, Vladan Ćosović, Milutin Živković, Dragan Manasijević, Milan Kolarević
THE QUALITY OF GI25 OIL PUMP COVER CASTING MADE IN MOLD OF BENTONITE MIXTURE OF
In the technology of bentonite mixture mold unexplored fields are the properties of a mixture of a quartz sand fraction 0.106 mm, 0.3 mm and 0.425 mm and the possibility of stacking in horizontal layers in the mold. The investigation is related to the layers of the following combination of sand fractions: 0.3 / 0.106 / 0.425 mm, 0.106 / 0.425 / 0.3...
By Ajla Huseljić, Ana Beroš, Hasan Avdušinović
QUALITY CONTROL OF DRINKING WATER
The main purpose of this paper was to control the quality of drinking water, which is distributed to the city of Zenica. Sampling, methods of testing and interpretation of the results were realized in accordance with Regulation on the hygiene of drinking water, "Official Gazette of B&H'', number: 40/10, 43/10, 30/12 [6]. JP "VIK" doo Zenica the...
By Asim Ibrahimagić, Amina Valentić
CHEMICAL ANALYSIS OF HEAVY METALS IN LEAF OF GREEN SALAD AND ASSESSMENT OF CONTAMINATION
The paper presents the results of an analysis of the content of heavy metals (Pb, Cd, Zn, Ni, Cu and Fe) in a leaf of green salad from six locations which gravitate towards the city of Zenica. After sampling from the defined locations, samples of green salad were prepared for analysis in the laboratory of the Faculty of Metallurgy, by dry digestion...
By Farzet Bikić, Fatima Baltić, Dejana Kasapović, Amira Pašalić
THE EXAMINATION OF THE MOST IMPORTANT QUALITY PARAMETERS OF WASTEWATER FROM CELLULOSE AND PAPER INDUSTRY AND ITS INFLUENCE AT SURFACE WATER RECIPIENT
Basic raw materials for paper production are cellulose fibers and water. Water plays a major role in the process of cellulose and paper production and it is present in almost all phases of the cellulose fiber production process. Because of that the cellulose and paper industry is considered to be one of the largest consumers of natural resource pol...
By Ilhan Bušatlić, Šefkija Botonjić, Azra Halilović
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
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
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