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Приказ резултата 1-10 од 17
Formation and development of damage of basalt under the effect of cavitation / Nastajanje i razvoj oštećenja bazalta pod dejstvom kavitacije
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
The paper examines the cavitation resistance of the cast basalt samples. Samples were obtained by melting, casting and thermal treatment of crushed basalt rocks from the Vrelo Kopaonik deposit. The experiment was conducted ...
Comparison of the formation and development of cavitation damage on cast and sintered samples based on basalt / Poređenje nastajanja i razvoja kavitacionih oštećenja livenih i sinterovanih uzoraka na bazi bazalta
(University of Belgrade, Technical Faculty, Bor, 2019)
The paper examines the resistance to the effect of cavitation of glass-ceramics based on basalt. Two types of samples were investigated: cast and sintered samples based on basalt.The cavitation erosion test was performed ...
Characterization of vacuum plasma spray NiCoCrAlY coating resistant to high temperature oxidation / Karakterizacija vakuum plazma sprej prevlake NiCoCrAlY otporne na visokotemperaturnu oksidaciju
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
Protective vacuum plasma spray VPS - NiCoCrAlY coating is used on sections of gas turbines to allow for longer and more reliable operation of sections exposed to aggressive effects of high temperature oxidation. Depositing ...
Mechanical properties and microstructure of molybdenum coating layers deposited vacuum plasma spray process / Mehanička svojstva i mikrostruktura slojeva prevlake molibdena deponovane vakuum plazma sprej procesom
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
Molybdenum coatings due to their excellent wear resistant properties and sliding characteristics under dry friction conditions are often used in applications to resist friction and dry sliding. Since molybdenum metal is ...
Characterization of plasma spray bioinert coating Al2O328wt.%MgO / Karakterizacija plazma sprej bioinertne prevlake Al2O328tež.%MgO
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
This paper presents the results of testing mechanical and structural characteristics of plasma spray coating Al2O328wt.%MgO. Metal oxide MgO in a complex oxide Al2O328wt.%MgO modifies the properties of Al2O3 ceramics by ...
Leaching of chalcopyrite concentrate by hydrogen peroxide in sulphuric acid solution / Luženje halkopiritnog koncentrata rastvorom sumporne kiseline i vodonik-peroksida
(Savez inženjera i tehničara Srbije, Beograd, 2019)
Due to complex mineralogy and/or low content of base metals, some ores and mineral concentrates are not suitable for pyrometallurgical treatment. Therefore, those ores and concentrates have to be treated by application of ...
Mechanical properties and microstructure of the ZrO25CaO/NiCrAl coating system / Mehaničke osobine i mikrostruktura sistema prevlaka ZrO25CaO/NiCrAl
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
ZrO25CaO is a versatile class of material that can be sintered or plasma spray deposited in combination with other materials on the implant substrate. Due to brittleness the organic ceramic hydroxyapatite Ca10(PO4)6(OH)2 ...
An alternative route for valorization of valuable metals from jarosite residue / Alternativna metoda za valorizaciju vrednih metala iz jarosit ostatka
(Savez inženjera i tehničara Srbije, Beograd, 2019)
This paper aims to consider the treatment of jarosite residue using a different reducing agents, aluminum, magnesium, and carbon. The jarosite residue is not standard-it contains higher amounts of Pb and Ag, as well as in, ...
Fireproof phosphorylated kraft lignin/polyester based composites: Green material for rocket propellant thermal protection systems / Vatrootporni kompoziti na bazi fosfatnih estara kraft lignina i poliesterske smole - ekološki prihvatljiv materijal za sisteme termičke zaštite raketnih goriva
(Military Technical Institute, Belgrade, 2019)
Presented study was aimed to investigate the influence of surface functionalization of the industrial kraft lignin (KL) on mechanical and thermal properties of high-performance and fireproof composites based on unsaturated ...
On the synthesis of 3-cyano-6-hydroxy-4-methyl-2-pyridone at room temperature / O sintezi 3-cijano-6-hidroksi-4-metil-2-piridona na sobnoj temperaturi
(Engineering Society for Corrosion, Belgrade, Serbia, 2019)
Milling of cyanoacetamide and acetoacetic ester as reactants, in the presence of KOH as the catalyst and ethanol as a viscous control agent (VCA) was performed in a planetary ball mill with the goal of investigating the ...