TY  - JOUR
AU  - Zlatkov, B. S.
AU  - Nikolić, Maria Vesna
AU  - Zeljković, Vladimir
AU  - Obradović, Nina
AU  - Pavlović, Vladimir B.
AU  - Aleksić, Obrad S.
PY  - 2011
UR  - https://dais.sanu.ac.rs/123456789/203
AB  - The powder injection moulding (PIM) technology is lately becoming more and more significant due to complex design possibilities and good repeatability. This technology requires optimization of all steps starting with material and binder, injection, debinding and sintering parameters. Sintering is one of the key links in this technology. The powder injection moulding process is specific as during feedstock injection powder particles mixed into the binder do not come into mechanical contact. Shrinkage during sintering of PIM samples is high. In this work we have analyzed and modeled the sintering process of isotropic PIM samples of Sr-hexaferrite. The Master Sintering Curve (MSC) principle has been applied to analyze sintering of two types of PIM Sr-hexaferrite samples with completely removed binder and only the extraction step of the debinding procedure (thermal debinding proceeding simultaneously with sintering). Influence of the heating rate on resulting sample microstructures has also been analyzed. Influence of the sintering time and temperature was analyzed using three different phenomenological equations.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology
SP  - 9
EP  - 20
VL  - 43
IS  - 1
DO  - 10.2298/SOS1101009Z
UR  - https://hdl.handle.net/21.15107/rcub_dais_203
ER  - 

@article{
author = "Zlatkov, B. S. and Nikolić, Maria Vesna and Zeljković, Vladimir and Obradović, Nina and Pavlović, Vladimir B. and Aleksić, Obrad S.",
year = "2011",
abstract = "The powder injection moulding (PIM) technology is lately becoming more and more significant due to complex design possibilities and good repeatability. This technology requires optimization of all steps starting with material and binder, injection, debinding and sintering parameters. Sintering is one of the key links in this technology. The powder injection moulding process is specific as during feedstock injection powder particles mixed into the binder do not come into mechanical contact. Shrinkage during sintering of PIM samples is high. In this work we have analyzed and modeled the sintering process of isotropic PIM samples of Sr-hexaferrite. The Master Sintering Curve (MSC) principle has been applied to analyze sintering of two types of PIM Sr-hexaferrite samples with completely removed binder and only the extraction step of the debinding procedure (thermal debinding proceeding simultaneously with sintering). Influence of the heating rate on resulting sample microstructures has also been analyzed. Influence of the sintering time and temperature was analyzed using three different phenomenological equations.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology",
pages = "9-20",
volume = "43",
number = "1",
doi = "10.2298/SOS1101009Z",
url = "https://hdl.handle.net/21.15107/rcub_dais_203"
}

Zlatkov, B. S., Nikolić, M. V., Zeljković, V., Obradović, N., Pavlović, V. B.,& Aleksić, O. S.. (2011). Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 43(1), 9-20.
https://doi.org/10.2298/SOS1101009Z
https://hdl.handle.net/21.15107/rcub_dais_203

Zlatkov BS, Nikolić MV, Zeljković V, Obradović N, Pavlović VB, Aleksić OS. Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology. in Science of Sintering. 2011;43(1):9-20.
doi:10.2298/SOS1101009Z
https://hdl.handle.net/21.15107/rcub_dais_203 .

Zlatkov, B. S., Nikolić, Maria Vesna, Zeljković, Vladimir, Obradović, Nina, Pavlović, Vladimir B., Aleksić, Obrad S., "Analysis and modeling of sintering of Sr-hexaferrite produced by PIM technology" in Science of Sintering, 43, no. 1 (2011):9-20,
https://doi.org/10.2298/SOS1101009Z .,
https://hdl.handle.net/21.15107/rcub_dais_203 .

TY  - JOUR
AU  - Zeljković, Vladimir
AU  - Maksimović, Katarina
AU  - Knežević, Jezdimir
PY  - 2010
UR  - https://dais.sanu.ac.rs/123456789/15203
AB  - This paper gives the procedure for the reliability calculation of mechanical components and structures. The stability (buckling) of a tin panel subjected to in-plane combined (normal and shearing) loads is considered in particular. The attention is focused on the buckling analysis of the typical thin-walled aircraft structure such as the skin of wings or fuselage. In this analysis the variables are treated as stochastic: loads, thickness and width of the panel. The numerical example illustrates the procedure. The probability of buckling is calculated for the wing skin of a light trainer aircraft. The effect of the panel thickness (t) and the load factor (j) on the buckling probability is shown. The dimensional tolerance levels affect the critical stress calculation as well as the buckling probability. The variation of the parameters (especially the thickness effect on the buckling) is facilitated by a software program for reliability calculation.
PB  - Beograd : Vojnotehnički institut
T2  - Scientific Technical Review
T1  - Probabilistički proračun gubitka stabilnosti tankih panela pod dejstvom kombinovanog opterećenja
T1  - Probabilistic approach to buckling analysis of thin panels subject to combined loads
SP  - 34
EP  - 38
VL  - 60
IS  - 3-4
UR  - https://hdl.handle.net/21.15107/rcub_dais_15203
ER  - 

@article{
author = "Zeljković, Vladimir and Maksimović, Katarina and Knežević, Jezdimir",
year = "2010",
abstract = "This paper gives the procedure for the reliability calculation of mechanical components and structures. The stability (buckling) of a tin panel subjected to in-plane combined (normal and shearing) loads is considered in particular. The attention is focused on the buckling analysis of the typical thin-walled aircraft structure such as the skin of wings or fuselage. In this analysis the variables are treated as stochastic: loads, thickness and width of the panel. The numerical example illustrates the procedure. The probability of buckling is calculated for the wing skin of a light trainer aircraft. The effect of the panel thickness (t) and the load factor (j) on the buckling probability is shown. The dimensional tolerance levels affect the critical stress calculation as well as the buckling probability. The variation of the parameters (especially the thickness effect on the buckling) is facilitated by a software program for reliability calculation.",
publisher = "Beograd : Vojnotehnički institut",
journal = "Scientific Technical Review",
title = "Probabilistički proračun gubitka stabilnosti tankih panela pod dejstvom kombinovanog opterećenja, Probabilistic approach to buckling analysis of thin panels subject to combined loads",
pages = "34-38",
volume = "60",
number = "3-4",
url = "https://hdl.handle.net/21.15107/rcub_dais_15203"
}

Zeljković, V., Maksimović, K.,& Knežević, J.. (2010). Probabilistički proračun gubitka stabilnosti tankih panela pod dejstvom kombinovanog opterećenja. in Scientific Technical Review
Beograd : Vojnotehnički institut., 60(3-4), 34-38.
https://hdl.handle.net/21.15107/rcub_dais_15203

Zeljković V, Maksimović K, Knežević J. Probabilistički proračun gubitka stabilnosti tankih panela pod dejstvom kombinovanog opterećenja. in Scientific Technical Review. 2010;60(3-4):34-38.
https://hdl.handle.net/21.15107/rcub_dais_15203 .

Zeljković, Vladimir, Maksimović, Katarina, Knežević, Jezdimir, "Probabilistički proračun gubitka stabilnosti tankih panela pod dejstvom kombinovanog opterećenja" in Scientific Technical Review, 60, no. 3-4 (2010):34-38,
https://hdl.handle.net/21.15107/rcub_dais_15203 .

TY  - JOUR
AU  - Obradović, Nina
AU  - Stevanović, Suzana
AU  - Zeljković, Vladimir
AU  - Ristić, Momčilo M.
PY  - 2009
UR  - https://dais.sanu.ac.rs/123456789/3463
AB  - The aim of this work is an investigation of isothermal sintering kinetics by observing the reduction of the specific surface area of ZnO. Zinc oxide powder is sintered isothermally in air for 5 to 120 min at temperatures from 400 to 900°C. The decrease in the specific surface area is observed as a function of temperature and sintering time. Models of Ristic-Jovanovic and German are applied in order to define the appropriate parameters. Information on the activation energy of sintering is obtained by the Arrhenius equation. The least square estimation (LSE) method was applied for determining optimum parameter values. © 2009 Springer Science+Business Media, Inc.
PB  - Springer
T2  - Powder Metallurgy and Metal Ceramics
T1  - Influence of ZnO specific surface area on its sintering kinetics
SP  - 182
EP  - 185
VL  - 48
IS  - 3-4
DO  - 10.1007/s11106-009-9112-0
UR  - https://hdl.handle.net/21.15107/rcub_dais_3463
ER  - 

@article{
author = "Obradović, Nina and Stevanović, Suzana and Zeljković, Vladimir and Ristić, Momčilo M.",
year = "2009",
abstract = "The aim of this work is an investigation of isothermal sintering kinetics by observing the reduction of the specific surface area of ZnO. Zinc oxide powder is sintered isothermally in air for 5 to 120 min at temperatures from 400 to 900°C. The decrease in the specific surface area is observed as a function of temperature and sintering time. Models of Ristic-Jovanovic and German are applied in order to define the appropriate parameters. Information on the activation energy of sintering is obtained by the Arrhenius equation. The least square estimation (LSE) method was applied for determining optimum parameter values. © 2009 Springer Science+Business Media, Inc.",
publisher = "Springer",
journal = "Powder Metallurgy and Metal Ceramics",
title = "Influence of ZnO specific surface area on its sintering kinetics",
pages = "182-185",
volume = "48",
number = "3-4",
doi = "10.1007/s11106-009-9112-0",
url = "https://hdl.handle.net/21.15107/rcub_dais_3463"
}

Obradović, N., Stevanović, S., Zeljković, V.,& Ristić, M. M.. (2009). Influence of ZnO specific surface area on its sintering kinetics. in Powder Metallurgy and Metal Ceramics
Springer., 48(3-4), 182-185.
https://doi.org/10.1007/s11106-009-9112-0
https://hdl.handle.net/21.15107/rcub_dais_3463

Obradović N, Stevanović S, Zeljković V, Ristić MM. Influence of ZnO specific surface area on its sintering kinetics. in Powder Metallurgy and Metal Ceramics. 2009;48(3-4):182-185.
doi:10.1007/s11106-009-9112-0
https://hdl.handle.net/21.15107/rcub_dais_3463 .

Obradović, Nina, Stevanović, Suzana, Zeljković, Vladimir, Ristić, Momčilo M., "Influence of ZnO specific surface area on its sintering kinetics" in Powder Metallurgy and Metal Ceramics, 48, no. 3-4 (2009):182-185,
https://doi.org/10.1007/s11106-009-9112-0 .,
https://hdl.handle.net/21.15107/rcub_dais_3463 .

TY  - CONF
AU  - Obradović, Nina
AU  - Stevanović, Suzana
AU  - Zeljković, Vladimir
AU  - Ristić, Momčilo M.
PY  - 2008
UR  - https://dais.sanu.ac.rs/123456789/617
AB  - Paper presented at the conference Материаловедение тугоплавких соединений: достижения и проблемы, Киев, Украина, 27-29 мая 2008.
PB  - Киев : Украинское материаловедческое общество; Националная академия наук Украины; националниый технический университет Украины „Киевский политехнический институт“
C3  - Межународная конференция „Материаловедение тугоплавких соединений: достижения и проблемы“ : труды конференции
T1  - Influence of ZnO specific surface area on its sintering kinetics
SP  - 106
EP  - 106
UR  - https://hdl.handle.net/21.15107/rcub_dais_617
ER  - 

@conference{
author = "Obradović, Nina and Stevanović, Suzana and Zeljković, Vladimir and Ristić, Momčilo M.",
year = "2008",
abstract = "Paper presented at the conference Материаловедение тугоплавких соединений: достижения и проблемы, Киев, Украина, 27-29 мая 2008.",
publisher = "Киев : Украинское материаловедческое общество; Националная академия наук Украины; националниый технический университет Украины „Киевский политехнический институт“",
journal = "Межународная конференция „Материаловедение тугоплавких соединений: достижения и проблемы“ : труды конференции",
title = "Influence of ZnO specific surface area on its sintering kinetics",
pages = "106-106",
url = "https://hdl.handle.net/21.15107/rcub_dais_617"
}

Obradović, N., Stevanović, S., Zeljković, V.,& Ristić, M. M.. (2008). Influence of ZnO specific surface area on its sintering kinetics. in Межународная конференция „Материаловедение тугоплавких соединений: достижения и проблемы“ : труды конференции
Киев : Украинское материаловедческое общество; Националная академия наук Украины; националниый технический университет Украины „Киевский политехнический институт“., 106-106.
https://hdl.handle.net/21.15107/rcub_dais_617

Obradović N, Stevanović S, Zeljković V, Ristić MM. Influence of ZnO specific surface area on its sintering kinetics. in Межународная конференция „Материаловедение тугоплавких соединений: достижения и проблемы“ : труды конференции. 2008;:106-106.
https://hdl.handle.net/21.15107/rcub_dais_617 .

Obradović, Nina, Stevanović, Suzana, Zeljković, Vladimir, Ristić, Momčilo M., "Influence of ZnO specific surface area on its sintering kinetics" in Межународная конференция „Материаловедение тугоплавких соединений: достижения и проблемы“ : труды конференции (2008):106-106,
https://hdl.handle.net/21.15107/rcub_dais_617 .

TY  - JOUR
AU  - Stevanović, Suzana
AU  - Zeljković, Vladimir
AU  - Obradović, Nina
AU  - Labus, Nebojša
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/209
AB  - Reduction of the specific surface area of porous ZnO during the sintering process was studied. ZnO powder was sintered at temperatures from 673 K to 1173 K. The decrease in the specific surface area was observed as a function of temperature and sintering time. Two different models were involved in order to define the appropriate parameters. The Arrhenius equation was used to give information on the activation energy of sintering. The LSE method was applied for determining optimum parameter values.
PB  - Belgrade : International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area
SP  - 259
EP  - 265
VL  - 39
IS  - 3
DO  - 10.2298/SOS0703259S
UR  - https://hdl.handle.net/21.15107/rcub_dais_209
ER  - 

@article{
author = "Stevanović, Suzana and Zeljković, Vladimir and Obradović, Nina and Labus, Nebojša",
year = "2007",
abstract = "Reduction of the specific surface area of porous ZnO during the sintering process was studied. ZnO powder was sintered at temperatures from 673 K to 1173 K. The decrease in the specific surface area was observed as a function of temperature and sintering time. Two different models were involved in order to define the appropriate parameters. The Arrhenius equation was used to give information on the activation energy of sintering. The LSE method was applied for determining optimum parameter values.",
publisher = "Belgrade : International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area",
pages = "259-265",
volume = "39",
number = "3",
doi = "10.2298/SOS0703259S",
url = "https://hdl.handle.net/21.15107/rcub_dais_209"
}

Stevanović, S., Zeljković, V., Obradović, N.,& Labus, N.. (2007). Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area. in Science of Sintering
Belgrade : International Institute for the Science of Sintering., 39(3), 259-265.
https://doi.org/10.2298/SOS0703259S
https://hdl.handle.net/21.15107/rcub_dais_209

Stevanović S, Zeljković V, Obradović N, Labus N. Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area. in Science of Sintering. 2007;39(3):259-265.
doi:10.2298/SOS0703259S
https://hdl.handle.net/21.15107/rcub_dais_209 .

Stevanović, Suzana, Zeljković, Vladimir, Obradović, Nina, Labus, Nebojša, "Investigation of sintering kinetics of ZnO by observing reduction of the specific surface area" in Science of Sintering, 39, no. 3 (2007):259-265,
https://doi.org/10.2298/SOS0703259S .,
https://hdl.handle.net/21.15107/rcub_dais_209 .

TY  - CONF
AU  - Stevanović, Suzana
AU  - Zeljković, Vladimir
PY  - 2007
UR  - https://dais.sanu.ac.rs/123456789/633
AB  - In this paper reduction of the specifice surface area of porous ZnO during sintering was analyzed. ZnO was sintered at temperatures from 673K to 1173K. Reduction of the specific surface area was observed as a function of the temperature and time of sintering. Analysis of sintering kintetics was done by observing reduction of the specific surface area. We used three different models, defined the appropriate parameters, and also the activation energy of sintering using the Arrhenius equation. The LSE metod was applied for determining optimum parameter values.
PB  - Čačak : Technical Faculty
C3  - VII Scientific Meeting Physics and Technology of Materials - FITEM '07
T1  - Reduction of the specific surface area of porous ZnO during sintering
SP  - 34
EP  - 34
UR  - https://hdl.handle.net/21.15107/rcub_dais_633
ER  - 

@conference{
author = "Stevanović, Suzana and Zeljković, Vladimir",
year = "2007",
abstract = "In this paper reduction of the specifice surface area of porous ZnO during sintering was analyzed. ZnO was sintered at temperatures from 673K to 1173K. Reduction of the specific surface area was observed as a function of the temperature and time of sintering. Analysis of sintering kintetics was done by observing reduction of the specific surface area. We used three different models, defined the appropriate parameters, and also the activation energy of sintering using the Arrhenius equation. The LSE metod was applied for determining optimum parameter values.",
publisher = "Čačak : Technical Faculty",
journal = "VII Scientific Meeting Physics and Technology of Materials - FITEM '07",
title = "Reduction of the specific surface area of porous ZnO during sintering",
pages = "34-34",
url = "https://hdl.handle.net/21.15107/rcub_dais_633"
}

Stevanović, S.,& Zeljković, V.. (2007). Reduction of the specific surface area of porous ZnO during sintering. in VII Scientific Meeting Physics and Technology of Materials - FITEM '07
Čačak : Technical Faculty., 34-34.
https://hdl.handle.net/21.15107/rcub_dais_633

Stevanović S, Zeljković V. Reduction of the specific surface area of porous ZnO during sintering. in VII Scientific Meeting Physics and Technology of Materials - FITEM '07. 2007;:34-34.
https://hdl.handle.net/21.15107/rcub_dais_633 .

Stevanović, Suzana, Zeljković, Vladimir, "Reduction of the specific surface area of porous ZnO during sintering" in VII Scientific Meeting Physics and Technology of Materials - FITEM '07 (2007):34-34,
https://hdl.handle.net/21.15107/rcub_dais_633 .