The great development of the industry has caused the need for systematization in the classification of raw materials and finished products. For this reason, all industrialized countries have their own standards, so called national standards or norms for production and delivery. With the unification of European countries, and also for the import and...

By Mirsada Oruč, Raza Sunulahpašić, Almaida Gigovic-Gekic, Sulejman Muhamedagić

Austempered Ductile Iron (ADI) is obtained by exactly controlled heat treatment process of nodular cast iron. Ductile iron samples are first austenitised to dissolve carbon, then quenched rapidly to the austempering temperature to avoid the formation of deleterious pearlite or martensite. Resulting ausferrite microstructure consists of acicular fer...

By Hasan Avdušinović, Almaida Gigovic-Gekic, Šehzudin Dervišić

Mechanical properties of the ductile iron strongly depend on its microstructure. Different microstructural constituents result in different values of mechanical and ductile properties of ductile iron castings. One of the possibilities to design (define) microstructure of ductile iron castings is an application of different heat treatment processes....

By Hasan Avdušinović, Salaheldin Abdelmagid Mohamed Badreldin, Mohammed Abdelgadir Abdalla Mohammed, Faik Uzunović

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

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

Successful examples of high–rise buildings in the world are obvious evidences that the use of high–strength concrete is nowadays reality in construction worldwide. Whether focus on high–rise buildings up to 15– 24 storeys, or the super tall high–rise buildings that are few hundred of storeys high, high–strength c...

By Ilda Kovačević, Sanin Džidić

Nanotechnology relates to the production and management of the materials whose phases dimensions are (grains of structure and manufactured of layers) up to 100 nm. Nanotechnology and nanomaterials lead to major breakthroughs in many areas of scientific research with practical application in the industrial sector. The global mark...

By Mirsada Oruč, Sulejman Muhamedagić, Almaida Gigović-Gekić, Raza Sunulahpašić

In this paper will be presented a practical example of the fuel savings in the process of hot-dip galvanizing. Reconstruction of the line is carried out during the transition of equipment from one to another location. Total power of the melting furnace it was 2.4 MW, and hot air generator for drying oven, has a power of 600 kW. With ...

By Jusuf Duraković, Sedad Mušinović, Nermin Hero

Hygienic and quality assessment of milk have the primary role in the diet and health of every consumer. Contemporary work in the production, preparation, primary processing, milk processing and storage of milk, looks for well- organized laboratory services contro on the all way from the barn and producers to dairies and distribution or storage of m...

By Hajrudin Skender, Sanela Patković, Azra Halilović