Претраживање
Приказ резултата 11-20 од 750
The effect of heat treatment on toughness and wear resistance of Fe-Cr-C-Nb alloys / Uticaj termičke obrade na žilavost i otpornost na habanje Fe-Cr-C-Nb legura
(Savez inženjera metalurgije Srbije, Beograd, 2008)
Alloying with niobium improves the mechanical properties of the high chromium irons. The alloy containing appriximately 3 %Nb gives the best compromise between wear resistance and toughness. These properties were improved ...
Possibilities of revitalization of magnesium factory 'Bela Stena', Baljevac on Ibar / Mogućnosti revitalizacije fabrike magnezijuma 'Bela Stena', Baljevac na Ibru
(Savez inženjera i tehničara Srbije, Beograd, 2004)
Magnesium factory ²Bela Stena" in Baljevac on Ibar started producing magnesium in 1979. and continued production until July of 2000. Reason for aborting magnesium production was disorder on World Trade Market, meaning the ...
Modern catalysis in the synthesis of some pharmaceuticals and fine chemicals / Savremena kataliza u sintezi nekih farmaceutskih sirovina i finih hemikalija
(Association of Chemical Engineers of Serbia, 2002)
Catalysis in the synthesis of Pharmaceuticals and line chemicals nowadays becomes more and more important. Synthesis that minimizes wastes is important from the economical aspect, as well as from the environmental aspect. ...
Influence of texturing conditions on characteristics and dyeing behaviour of polyamide 66 yarn
(Niscair, 2004)
The influence of texturing parameters, such as draw ratio and heater temperature, on characteristics and dyeing behaviour of polyamide 66 yam has. been studied. It is observed that the draw ratio and heater temperature ...
Alkali-lead deposits of lead refinery 'Trepča' and their influence on Ibar's waters / Alkalno-olovne deponije rafinerije olova 'Trepča' i njihov uticaj na vode Ibra
(Naučno-stručno društvo za zaštitu životne sredine Srbije - Ecologica, Beograd, 2009)
Besides lead as basic metal, flotation lead concentrates contain several accompanied metals, such as: copper, zinc, iron, antimony, silver, gold, bismuth and arsenic. Raw lead and slag are obtained by agglomeration roasting ...
Critical review of relations for predicting the normal freezing point of organic compounds / Kritički prikaz modela za predskazivanje normalne temperature mržnjenja organskih supstanci
(Association of Chemical Engineers of Serbia, 2005)
This paper presents empirical relations for predicting the normal freezing point of organic compounds. Nine relations were tested with 90 organic compounds. The Meyer-van der Wyk and Kreglewski-Marano-Holder models are ...
The crystallisation of calcium phosphate glass containing vanadium oxide
(University of Chemistry and Technology, Prague, 2007)
The crystallisation behaviour of calcium phosphate glass containing vanadium oxide was studied. Glass with a molar ratio of [CaO]/[P2O5] = 1.13 and a V2O5 content of 8 mol.% was prepared for the experiments. The crystallisation ...
Obtaining of nanostructured powders for production of new dispersion strengthened sintered material in the system Cu-Al2O3 / Dobijanje nanostrukturnih prahova u cilju proizvodnje novih disperzno ojačanih sinterovanih materijala u sistemu Cu-Al2O3
(Univerzitet u Beogradu, Tehnološko-metalurški fakultet, 2009)
This PhD thesis presents the possibility of nanostructured composite materials based on copper and alumina synthesis trough a new method, which is a combination of thermo-chemical synthesis and mechanical alloying. ...
Deformation behavior of the AlMg4.5Cu0.5 type alloy sheet
(Savez inženjera metalurgije Srbije, Beograd, 2005)
Deformation behavior of the AlMg4.5Cu0.5 type alloy sheets was examined after cold rolling and annealing in the range of temperature from 220°C to 520°C, water quenching and natural aging. The low temperature annealed ...
Determination of critical conditions for the formation of electrodeposited copper structures suitable for electrodes in electrochemical devices
(MDPI, 2007)
Electrodeposition of copper from acid sulfate solutions at overpotentials on the plateau of the limiting diffusion current density and at higher overpotentials was examined. The average current efficiencies for hydrogen ...