Title: An approach to determine enthalpies of formation for ternary compounds

 DOI: 10.2298/JMMB1001001D

Abstract

An integrated approach of experiment and theoretical computation to acquire enthalpies of formation for ternary compounds is described. The enthalpies of formation (ΔH_f) for Al₇₁Fe₁₉Si₁₀ and Al₃₁Mn₆Ni₂ are measured via a calorimeter.

Title: On the synthesis of Bi–based precursors for lead-free solders development

   DOI:10.2298/JMMB1001011G

Abstract:

Preliminary studies on the design of lead-free solders precursors by wet chemistry methods are presented. The main objective is to assess the impact of the way of hydroxide precipitates preparation on the metal elements content of the precipitates....

Title: Mechanical and magnetic properties of composite materials with polymer matrix

DOI:10.2298/JMMB1001025G

Abstract

Many of modern technologies require materials with unusual combinations of properties that cannot be met by the conventional metal alloys, ceramics, and polymeric materials. Material property combinations and ranges have been extended by the development of composite materials. Development of Nd-Fe-B/polymer composite magnetic materials has significantly increased interest in ...

Title: Nickel adsorption onto carbon anode dust modified by acetic acid and KOH

Abstract

Carbon anode dust (CAD) is metallurgical waste material of aluminium production industry. The objective of this study was to convert carbon anode dust to acetic acid- modified and KOH-modified carbon adsorbat...

Title: Application of optical basicity to viscosity of high alumina blast furnace slags

Title: The impact of cold deformation, annealing temperatures and chemical assays on the mechanical properties of platinum

 DOI:10.2298/JMMB1001051T

Abstract

In order to form the necessary data base on platinum and platinum metals, certain tests were carried out on platinum samples of different purity of 99.5%, 99.9% and 99.99%. The degree of cold deformation, annealing temperature and chemical assays were tested as well as...

Title: Study on the pelletizing of sulfate residue with magnetite concentrate in grate-kiln system

 DOI:10.2298/JMMB1001059S

Abstract

The experiment on the feasibility of pelletizing with magnetite concentrate and the wasted sulfate residue was carried out, to research the performance of pellet in grate-kiln system and simulate the grate-kiln pelletizing process in the micro-pellet roasting simulation system in laboratory ...

Title: Copper recovery in a bench-scale carrier facilitated tubular supported liquid membrane system

DOI:10.2298/JMMB1001067MAbstract

The extraction of copper ions in a tubular supported liquid membrane using LIX 984N-C as a mobile carrier was studied, evaluating the effect of the feed characteristics (flowrate, density, viscosity) on the feed-side laminar layer of the membrane. A Counter-current, double pipe perspex bench-scale reactor consisting of a...

Title: Characterization of the natural mineral form from the PbS–Sb₂S₃ system

  DOI:10.2298/JMMB1001075S

Abstract

This paper presents the results of experimental investigations of natural mineral form from the PbS – Sb₂S₃ system. Investigated sulfosalt appears in nature in the form of nanowires with diameters ranging from 200 to 500 nm and its length can reach up to 150 mm...

Title: A novel optical granulometry algorithm for ore particles

 DOI:10.2298/JMMB1001087J

Abstract:

This paper proposes a novel algorithm to detect the particle size distribution of ores with irregular shapes and dim edges. This optical granulometry algorithm is particularly suitable for blast furnace process control, so its result can be used directly as...

Title: Thermodynamic description of the C-Ge and C-Mg systems

Abstract

The thermodynamic modeling for the C-Ge and C-Mg systems is performed by the CALPHAD method. The enthalpy of formation for Mg₂C₃, the experimental value of which is not available in the literature, is obtained via first principles calculation to...

Title: Thermodynamic analysis and characterization of alloys in Bi-Cu-Sb system

DOI:10.2298/JMMB1001105Z 

Abstract

The results of thermodynamic analysis and characterization of some alloys in Bi-Cu-Sb lead-free solder system are presented in this paper. Thermodynamic analysis was done using general solution model, while optic microscopy, hardness and electroconductivity measurements were used in order to...

Title: Statistical and metallurgical analysis of process interruptions in continuous casting of steels

Abstract

Operational difficulties, as well as quality issues, are encountered in various manufacturing activities, including steel plant operations.  In the present study, processes in steel plants, such as continuous casting, have been examined from the statistical and metallurgical perspectives...

Title: Surface tension of molten alkali metaphosphates

Abstract

Two molten alkali metaphosphates (LiPO₃ and NaPO₃), known components of molten salt baths for electrolytic metallurgical processes, were examined using the ring tensiometry technique. The surface tension of the melts was measured as...