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Influence of Pr3+ and CO32- Ions Coupled Substitution on Structural, Optical and Antibacterial Properties of Fluorapatite Nanopowders Obtained by Precipitation
(MDPI, Basel, 2021)
Coupled substitution of fluorapatite (FAP) crystal lattice plays an important role in the engineering of optically active nanomaterials. Uniform fluorapatite nanopowders doped with praseodymium (Pr3+) and carbonate (CO32-) ...
Hydration of mechanically activated mixtures of Portland cement and fly ash
(University of Chemistry and Technology, Prague, 2007)
Fly ash (FA) can be used in cement mixtures with certain limitations. For experimental purposes, mixtures of Portland cement (PC) and FA were used. The content of FA in the mixtures was either 30% or 50%. The mechanical ...
Thermal, structural and electrical properties of some bi-cu-ni alloys
(Polish Acad Sciences Committee Metallurgy, Krakow, 2014)
The Bi-Cu-Ni ternary system belongs to the group of potential Cu-Ni-based advanced lead-free solder materials for high temperature application. In this study microstructure investigation of the slow-cooled Bi-Cu-Ni samples ...
Structure and Strength of Isothermally Heat-Treated Medium Carbon Ti-V Microalloyed Steel
(MDPI, Basel, 2021)
Isothermal transformation characteristics of a medium carbon Ti-V microalloyed steel were investigated using light microscopy, scanning electron microscopy (SEM) equipped with energy dispersive spectroscopy (EDS), and by ...
the non-linear regression - the levenberg-marquardt algorithm for assumption the energy losses of hydraulic transport in a case of the mine "trepca"
(Univerzitet u Beogradu - Institut za nuklearne nauke Vinča, Beograd, 2019)
The main problem of hydraulic transport is the resistance generated during the mixture transport through the pipe-line. Testing the flow characteristics of mixtures, shown in this paper, are based on the principles of ...
Valorization of Fly Ash from a Thermal Power Plant for Producing High-Performance Self-Compacting Concrete
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2020)
This study analyzes the feasibility of valorizing industrial by-product, fly ash from a thermal power plant as a partial replacement of mineral filler-limestone for the production of self-compacting concrete (SCC). Three ...
Synthesis of Highly Porous Al2O3-YAG Composite Ceramics
(Međunarodni Institut za nauku o sinterovanju, Beograd, 2016)
Al2O3-YAG composite was obtained by sintering of porous Al2O3 preforms infiltrated with water solution of aluminium nitrate nonahydrate, Al(NO3)(3)center dot 9H(2)O and yttrium nitrate hexahydrate, Y(NO3)(3)center dot ...
Chemical Thermodynamic Processes at Metal-Mold Interface
(Japan Inst Metals, Sendai, 2013)
At the contact surface between the liquid metal and the mold wall a number of chemical and thermodynamical reactions were taken. The products of those reactions are spread out on both the sides, i.e., in the solidified ...
Surface properties of natural calcite filler treated with stearic acid
(University of Chemistry and Technology, Prague, 2009)
In order to obtain hydrophobic material, the water suspension of natural limestone with the high content of calcite (>95%), was treated with different amounts (0.5-4%) of stearic acid dissolved in chloroform. Thermal ...
Technologically Sustainable Route for Metals Valorization from Jarosite-PbAg Sludge
(MDPI, Basel, 2021)
By-products from zinc hydrometallurgy are classified as hazardous waste with strong leaching toxicities. Even though numerous research papers are dedicated to valorizing valuable metals in it, the primary management route ...