This paper presents a model of molecular ultrathin (nano) crystalline film and feature research methodology of exciton system as well as analysis of dielectric properties of these spatially very restricted structures with perturbed fundamental parameters on surfaces. Using the two-time Green's functions, adapted for research of symmetry breaking cr...

By Siniša M. Vučenović, Jovan P. Šetrajčić

The microscope has become a more common tool in the cement industry. Evaluation of clinker using microscopy is a powerful technique that can help improve clinker production and cement quality. The key to using the microscopy is understanding the process of clinker production namely how raw materials are transformed into clinker. These transformatio...

By Nevzet Merdić, Nedžad Haračić, Ilhan Bušatlić, Nadira Bušatlić, Adis Merdić

Clinker dust or cement kiln dust (CKD) is fine granulated material which generate during the thermal treatment of raw meal and during the clinker cooling process. By applying different methods in certain stages of the technological process it is possible to extract the mentioned dust. The chemical composition of the clinker dust depends on type and...

By Nevzet Merdić, Nedžad Haračić, Ilhan Bušatlić, Nadira B Bušatlić, Zehrudin Osmanović, Nisad Avdić

In recent decades, the interest in refractory materials which are formed without baking - by chemicalbonding - has increased significantly, as their production is less complex and more economical thanthe production of classical refractory materials, which involves a long baking process. In this work,as a chemical binder, phosphoric acid, which is i...

By Nadira Bušatlić, Ilhan Bušatlić, Nedžad Haračić, Nevzet Merdić

Gypsum is added to the Portland cement clinker in the amount of 3 to 5% in the grinding phase as the binding rate regulator. When it comes to the hydration of cement, if sufficient amount of gypsum is added, fast cementation will not occur because gypsum by its presence reduces the solubility of tricalcium aluminate and thus slows down rapid reacti...

By Ilhan Bušatlić, Amna Karić

More recently a modified stainless steels have been used to produce various structural elements that work in complex operating conditions. Stainless steel X8CrNiS18-9 (standard EN 10088-3: 2005) is the most commonly used austenitic stainless steel due to its good machinability. This steel has high mechanical and working properties thanks to a compl...

By Derviš Mujagić, Mustafa Hadžalić, Aida Imamović, Sulejman Muhamedagić

This paper describes a few examples of the recovery of manganese from steel slag and dust by using different technologies based on acid leaching.Reductive leaching in sulfuric acid (H2SO4) for recovery of manganese from electric arc furnace dust (EAFD) was represented. Recovery of manganese and iron was increased with increasing in the sulfuric aci...

By Aida Imamović, Raza Sunulahpašić, Amna Hodžić

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

The results of two light optical tomographies (LOT) of two-phase steels are presented and compared in this paper. Two-phase steels show a microstructure consisting of a carbon-rich second phase and a ferritic matrix. In this work, microstructures are compared with a martensitic and a bainitic second phase. Tomographies are very important for materi...

By Emina Vardo, Jessica Gola, Frank Mücklich

In the following paper results of the investigation of the “Bauschinger effect” are presented. It was done by model which was made in ABAQUS and observed from deep rolling simulation results of residual stresses. Later, comparison of the results are presented by variation of forces and overlapping factor. Deep rolling (DR) is a mechanic...

By Ammar Sejdinoski