The results of the comparative prediction of thermodynamic properties for Ga-Zn-Sn system are presented in this paper. Two thermodynamic predicting models were used for the calculation – one symmetrical (Muggianu), one assymetrical (Toop) model and general solution model. The calculations were done for different sections in exa...

By Ljubiša Balanović, Dragana Živković, Dragan Manasijević, Diana Ćubela, Tamara Holjevac Grgurić, Nada Štrbac, Aleksandra Mitovski

Just connect thermodynamic and kinetic factors, mechanisms and flow of process parameters in heats ferrous possible to plan , outline and guide the process of selective oxidation of certain metal elements, if necessary, non-metallic elements , estimate changes of the heat with thermodynamic and kinetic point of view. The above proced...

By Derviš Pihura, Jakob Lamut, Derviš Mujagić

The material of journal end wall for cement mill is cast steel GS-20Mn5, WNo: 1.1120 according to standard DIN 17182. The journal end wall is made from two separately cast part - the plate and the cylinder, which are joined by welding. Inhomogeneity in the rough cast microstructure of materials, inadequate heat treatment of normalization, large non...

By Emina Kratina, Belma Fakić, Adisa Burić

The paper presents numerical procedure for determining fracture mechanics parameters in elastic￾plastic conditions aroundthe crack tip. Applied to this instance, the analysis included the determination of contour J integral by the energy domain integral method. Both, numerical model of standard dimensions SENB specimen and network of finite element...

By Bahrudin Hrnjica, Fadil Islamović, Dženana Gačo, Zijah Burzić

The paper will present the experimental results of testing the mechanical properties of composite materials made of short and long glass fibers, or their combination. It will also present the results of pressure vessels’ hydro-testing, where the emphasis was put on the level of safety, i.e. the possibility of repair of pressure vessels made o...

By Mirzet Beganović, Fadil Islamović, Atif Hodžić, Esad Bajramović

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 regard, granulated blast furnace slag is a significant addition to the metallurgical cement type CEM III. Cements based on blast furnace slag consist of a mixture of cement cl...

By Nedzad Haračić, Nevzet Merdic, Ilhan Bušatlić, Zehrudin Osmanović, Jelica Zelić

Standard ISO-834 five curve does not represent any real fire situation, but exists in fully controlled laboratory standardized test conditions only. Parametric five curves take in consideration size and geometry of the fire compartment, probability of fire appearance, fire spread and duration, density and arrangement of fire load, importance of the...

By Sanin Džidić

The goal of this paper is to present the experience in fire resistance testing of the self-supporting facade sandwich panels with sheet metal lining and PIR insulation, thickness 80 and 100 mm, that have been tested to the Standard Fire Curve ISO-834 as well as external fire curve, to the scientific and professional community in the field of expert...

By Edin Garaplija, Sanin Džidić, Vedran Avdić

The expansion of the transport sector has produced a number of negative factors that constantly threaten the quality of life and economy of the country. Studies have shown that motor vehicles can pollute the environment and economy of country with more than 50% compared to other pollutants. Also, automobile traffic reduces the quality of the enviro...

By Dragana Agić, Fuad Klisura, Muhamed Barut