Search
Now showing items 1-10 of 10
Transformations of mechanochemical activated Na2CO3
(Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd, 2022)
During mechanical activation, energy of treated material is increase to a higher level. This can lead to chemical transformation of the activated material. This is the point where we can talk about mechanochemical ...
FTIR spectroscopy analysis of mechanochemically activated Na2CO3 during relaxation time
(Belgrade : University of Belgrade, Faculty of Mechanical EngineeringKragujevac : Serbian Tribology Society, 2021)
Sodium carbonate was mechanically activated for 7 minutes in a vibro mill at a frequency of 3000 oscillations per
minute. Activated samples were stored in the air at room conditions for 31 days. To monitor the kinetics ...
Analysis of changes of mechanically activated sodium carbonate sample
(Bor : University of Belgrade, Technical Faculty in Bor, 2022)
For mechanical activation of sodium carbonate, a vibro mill at a frequency of 3000 oscillations per
minute was used for 28 minutes. After activation, samples were placed for 31 days in the air at room
conditions. In aim ...
DTA/TG analysis of mechanochemicaly activated sodium carbonate
(Univerzitet u Beogradu - Rudarsko-geološki fakultet, Beograd, 2021)
Sodium carbonate is a material that is very good sorbent of carbon dioxide from the atmosphere, and it is a reason of it is increasing importance in environmental protection. In order to improve it is sorption characteristics, ...
Spectroscopy analysis of activated sodium carbonate
(Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS)Belgrade : Society for Renewable Electrical Power Sources, 2023)
Mechanical activation of materials leads to qualitative changes in material structure. These changes can include the accumulation of energy in the form of weakening bonds in the crystal, disruption of the crystal lattice, ...
Electrical properties of isothermally sintered cordierite-based ceramics as funcion of sintering and activation time
(Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS)Belgrade : Society for Renewable Electrical Power Sources, 2021)
Mechanical activation is a commonly used and relatively fast and inexpensive procedure for
sample preparation before the sintering process. Cordierite is a stoichiometric mixture of three different
oxides (2MgO⋅2Al2O3⋅5SiO2). ...
Influence of sintering time on density properties and SEM analysis of cordierite-based ceramics
(Belgrade : Union of Mechanical and Electrotechnical Engineers and Technicians of Serbia (SMEITS) Society for Renewable Electrical Power SourcesBelgrade : Society for Renewable Electrical Power Sources, 2021)
The mechanical activation of the starting mixtures of cordierite (2MgO*2Al2O3*5SiO2) with
5.00 mass % TiO2 was performed in a high energy ball mill during 10-80 min. The applied compaction
pressure before the sintering ...
The influence of high compaction pressure on cordierite-based ceramics
(Bor : University of Belgrade, Technical Faculty in Bor, 2021)
Cordierite, 2MgO⋅2Al2O3⋅5SiO2 is a high-temperature ceramic material. In order to improve its properties, titanium oxide was added to the starting mixture in an amount of 5%. Mechanical activation of samples was performed ...
Synthesis of the new lost foam refractory coatings based on talc
(Srpsko hemijsko društvo, Beograd, 2022)
This paper is focused on the preparation procedures, using a talc-based filler, to improve the rheologic properties of the lost foam refractory coatings. Talc, with grain size of 40 .m, was mechanically activated in a ...
SEM and X-ray analyses of sintered MgO/Bi2O3 binary system
(Bor : University of Belgrade, Technical Faculty in Bor, 2021)
Cordierite, 2MgO⋅2Al2O3⋅5SiO2 is a high-temperature ceramic material. In order to improve its properties, titanium oxide was added to the starting mixture in an amount of 5%. Mechanical activation of samples was performed ...