The translational symmetry of the distribution of atoms (ions) of the charge carriers (electrons or holes)system is broken by sputtering (doping) due to the existence of two boundary surfaces. This is a modelof high-temperature superconductors in which the observed symmetry breaking orthogonal to the CuOplane is treated as a perturbation. Single-pa...

By Jovan P. Šetrajčić, Siniša M. Vučenović

Metallic materials in granular packings show different electrical properties from their bulk counterparts.In this paper, we investigate the temporal evolution of the electrical conductivity of granular metals. Weuse metallic beads arranged in different one-, two- and three-dimensional ensembles through whichdifferent constant currents are injected....

By Maja Đekić, Ajla Karić, Amra Salčinović-Fetić, Melisa Baždar, Belma Husković, Dijana Dujak, Diana Ćubela

This study investigated the mechanical properties of a series of Fe-Cr-Mn (Mo)-N alloys. The chromiumcontent ranged from 16 to 18 mass%. The test alloys were produced by adding nitrided ferroalloys duringmelting in an induction furnace. Test specimens of each alloy were prepared for mechanical testing andmicrostructural observation. Tensile strengt...

By Jasmin Halilović, Edis Nasić, Derviš Mujagić

Steel 17-7PH is austenitic-martensitic steel with high strength, hardness, and resistance to creep, andcorrosion. It is designed for aerospace components, but can also be used for other applications that requirehigh strength and corrosion resistance, as well as leaf springs for operation at temperatures up to 316 °C. Itcan be used in a solution...

By Belma Fakić, Derviš Mujagić, Omer Beganović

Modern steel production cannot be imagined without manganese, because almost all steels containmanganese.In this paper, we present the impact of manganese on the tensile strength values of high-carbon steel.This paper presents an improvement in the quality of wire rolling with control of manganese content insteel and the value of C-equivalent, in i...

By Aida Imamović, Omer Kablar, Mirsada Oruč, Vedina Purić-Selimović, Lamija Sušić

Leachate water from sanitary landfills represents one of the most complex global environmental problems. This paper examines the possibility of using aluminosilicate material, pyrophyllite, from the Parsovići deposit, as an adsorbent. It was researched the influence of two granulations of pyrophyllite (0-53 μm and 0-100 μm) on the degree of a...

By Jasmina Kustura, Belma Halilhodžić, Enita Kurtanović, Amra Čizmić, Kenan Kozlo, Adnan Teletović, Atif Hodžić, Muhamed Harbinja

Aluminum alloy foams are a form of porous metal whose structure resembles the shape of natural materials such as coral, bone, sponge, etc. Due to their structure, these materials retain good mechanical properties of the base material while being significantly lighter than non-porous metal. Metal foams can be used as energy and vibration absorbers, ...

By Karla Grgić, Igor Ćulum, Branimir Lela, Jure Krolo, Sonja Jozić

The particle shape and size of the starting powders represent the most important physical properties, on which the quality of the compacts and final sintered products depends. Two types of powder were analyzed in the paper - electrolytic copper powder with a dendritic particle shape and water-atomized copper powder with an irregular particle shape....

By Ivana Marković, Stevan Trujić, Dragan manasijević, Ljubiša Balanović, Uroš Stamenković, Milijana Mitrović

Wet-strength paper production is of great significance due to its prominent importance in everyday consumer activities. Production of these paper types is very challenging for the manufacturer since they have to meet very specific demands. Wet-strength paper products include bags that come in contact with moisture and wet products, hygienic and kit...

By Edina Husić, Šefkija Botonjić

Polymeric materials have an important role in gluing technology due to their broad application in the wood industry, metal industry, glass, and ceramics industry as well as medicine. This article discusses the basic physicochemical aspects of bonding with adhesives and also, the mechanisms of action of the adhesive materials during bonding based on...

By Šaćira Mandal, Aida Šapčanin