TY  - JOUR
AU  - Anđić, Zoran
AU  - Korać, Marija
AU  - Kamberović, Željko
AU  - Vujović, Aleksandar
AU  - Tasić, Miloš
PY  - 2007
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5058
AB  - In this paper synthesis of a composite based on Cu-Al2O3 by a thermo-chemical method is shown along with a comparative analysis of the properties of the obtained nanocomposite sintered samples, which are characterized by a good combination of electric-mechanical properties, suitable for work at elevated temperatures. Ultra fine and nanocrystal powder Cu-Al2O3 is obtained by a chemical method, starting from water solutions of nitrates up to achieving the requested composition with 3 and 5% of Al2O3. Synthesis of composite powders has been developed through several stages: drying by spraying, oxidation of the obtained powder of precursor and then reduction by hydrogen until the final composition of nanocomposite powder is achieved. After characterization of the obtained powders, which comprised examination by the Scanning Electronic Microscopy (SEM) method and X-ray-structure analysis (RDA), the powders were compacted with compacting pressure of 500 MPa. Sintering of the obtained samples was performed in the hydrogen atmosphere in isothermal conditions at temperatures of 800 and 900oC for 30, 60, 90 and 120 minutes. Characterization of the obtained Cu-Al2O3 of the nanocomposite sintered system comprised examination of microstructure by the Scanning Electronic Microscopy (SEM), as well as examining of electric mechanical properties. The obtained results show a homogenous distribution of dispersoides in the structure, as well as good mechanical and electric properties.
PB  - International Institute for the Science of Sintering
T2  - Science of Sintering
T1  - Analysis of the Properties of a Cu-Al2O3 Sintered System based on Ultra Fine and Nanocomposite Powders
VL  - 39
SP  - 145
EP  - 152
DO  - 10.2298/SOS0702145A
ER  - 

@article{
author = "Anđić, Zoran and Korać, Marija and Kamberović, Željko and Vujović, Aleksandar and Tasić, Miloš",
year = "2007",
abstract = "In this paper synthesis of a composite based on Cu-Al2O3 by a thermo-chemical method is shown along with a comparative analysis of the properties of the obtained nanocomposite sintered samples, which are characterized by a good combination of electric-mechanical properties, suitable for work at elevated temperatures. Ultra fine and nanocrystal powder Cu-Al2O3 is obtained by a chemical method, starting from water solutions of nitrates up to achieving the requested composition with 3 and 5% of Al2O3. Synthesis of composite powders has been developed through several stages: drying by spraying, oxidation of the obtained powder of precursor and then reduction by hydrogen until the final composition of nanocomposite powder is achieved. After characterization of the obtained powders, which comprised examination by the Scanning Electronic Microscopy (SEM) method and X-ray-structure analysis (RDA), the powders were compacted with compacting pressure of 500 MPa. Sintering of the obtained samples was performed in the hydrogen atmosphere in isothermal conditions at temperatures of 800 and 900oC for 30, 60, 90 and 120 minutes. Characterization of the obtained Cu-Al2O3 of the nanocomposite sintered system comprised examination of microstructure by the Scanning Electronic Microscopy (SEM), as well as examining of electric mechanical properties. The obtained results show a homogenous distribution of dispersoides in the structure, as well as good mechanical and electric properties.",
publisher = "International Institute for the Science of Sintering",
journal = "Science of Sintering",
title = "Analysis of the Properties of a Cu-Al2O3 Sintered System based on Ultra Fine and Nanocomposite Powders",
volume = "39",
pages = "145-152",
doi = "10.2298/SOS0702145A"
}

Anđić, Z., Korać, M., Kamberović, Ž., Vujović, A.,& Tasić, M.. (2007). Analysis of the Properties of a Cu-Al2O3 Sintered System based on Ultra Fine and Nanocomposite Powders. in Science of Sintering
International Institute for the Science of Sintering., 39, 145-152.
https://doi.org/10.2298/SOS0702145A

Anđić Z, Korać M, Kamberović Ž, Vujović A, Tasić M. Analysis of the Properties of a Cu-Al2O3 Sintered System based on Ultra Fine and Nanocomposite Powders. in Science of Sintering. 2007;39:145-152.
doi:10.2298/SOS0702145A .

Anđić, Zoran, Korać, Marija, Kamberović, Željko, Vujović, Aleksandar, Tasić, Miloš, "Analysis of the Properties of a Cu-Al2O3 Sintered System based on Ultra Fine and Nanocomposite Powders" in Science of Sintering, 39 (2007):145-152,
https://doi.org/10.2298/SOS0702145A . .

TY  - JOUR
AU  - Korać, Marija
AU  - Anđić, Zoran
AU  - Tasić, Miloš
AU  - Kamberović, Željko
PY  - 2007
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/5083
AB  - This paper presents the synthesis of nano-composite Cu–Al2O3 powder by a thermochemical method and sintering, with a comparative analysis of the mechanical and electrical properties of the obtained solid samples. Nano-crystalline Cu–Al2O3 powders were produced by a thermochemical method through the following stages: spray-drying, oxidation of the precursor powder, reduction by hydrogen and homogenization. Characterization of powders included analytical electron microscopy (AEM) coupled with energy dispersive spectroscopy (EDS), differenttial thermal and thermogravimetric (DTA–TGA) analysis and X-ray diffraction (XRD) analysis. The size of the produced powders was 20–50 nm, with a noticeable presence of agglomerates. The composite powders were characterized by a homogenous distribution of Al2O3
in a copper matrix. The powders were cold pressed at a pressure of 500 MPa and sintered in a hydrogen atmosphere under isothermal conditions in the temperature range from 800 to 900 °C for up to 120 min. Characterization of the Cu–Al2O3 sintered system included determination of the density, relative volume change, electrical and mechanical properties, examination of the microstructure by SEM and focused ion beam (FIB) analysis, as well as by EDS. The obtained nano-composite, the structure of which was, with certain changes, presserved in the final structure, provided a sintered material with a homogenеous distribution of dispersoid in a copper matrix,
with exceptional effects of reinforcement and an excellent combination of mechanical and electrical properties.
PB  - Belgrade : Serbian Chemical Society
T2  - Journal of the Serbian Chemical Society
T1  - Sintering of Cu–Al2O3 nano-composite powders produced by a thermochemical route
VL  - 72
IS  - 11
SP  - 1115
EP  - 1125
DO  - doi: 10.2998/JSC0711115K
ER  - 

@article{
author = "Korać, Marija and Anđić, Zoran and Tasić, Miloš and Kamberović, Željko",
year = "2007",
abstract = "This paper presents the synthesis of nano-composite Cu–Al2O3 powder by a thermochemical method and sintering, with a comparative analysis of the mechanical and electrical properties of the obtained solid samples. Nano-crystalline Cu–Al2O3 powders were produced by a thermochemical method through the following stages: spray-drying, oxidation of the precursor powder, reduction by hydrogen and homogenization. Characterization of powders included analytical electron microscopy (AEM) coupled with energy dispersive spectroscopy (EDS), differenttial thermal and thermogravimetric (DTA–TGA) analysis and X-ray diffraction (XRD) analysis. The size of the produced powders was 20–50 nm, with a noticeable presence of agglomerates. The composite powders were characterized by a homogenous distribution of Al2O3
in a copper matrix. The powders were cold pressed at a pressure of 500 MPa and sintered in a hydrogen atmosphere under isothermal conditions in the temperature range from 800 to 900 °C for up to 120 min. Characterization of the Cu–Al2O3 sintered system included determination of the density, relative volume change, electrical and mechanical properties, examination of the microstructure by SEM and focused ion beam (FIB) analysis, as well as by EDS. The obtained nano-composite, the structure of which was, with certain changes, presserved in the final structure, provided a sintered material with a homogenеous distribution of dispersoid in a copper matrix,
with exceptional effects of reinforcement and an excellent combination of mechanical and electrical properties.",
publisher = "Belgrade : Serbian Chemical Society",
journal = "Journal of the Serbian Chemical Society",
title = "Sintering of Cu–Al2O3 nano-composite powders produced by a thermochemical route",
volume = "72",
number = "11",
pages = "1115-1125",
doi = "doi: 10.2998/JSC0711115K"
}

Korać, M., Anđić, Z., Tasić, M.,& Kamberović, Ž.. (2007). Sintering of Cu–Al2O3 nano-composite powders produced by a thermochemical route. in Journal of the Serbian Chemical Society
Belgrade : Serbian Chemical Society., 72(11), 1115-1125.
https://doi.org/doi: 10.2998/JSC0711115K

Korać M, Anđić Z, Tasić M, Kamberović Ž. Sintering of Cu–Al2O3 nano-composite powders produced by a thermochemical route. in Journal of the Serbian Chemical Society. 2007;72(11):1115-1125.
doi:doi: 10.2998/JSC0711115K .

Korać, Marija, Anđić, Zoran, Tasić, Miloš, Kamberović, Željko, "Sintering of Cu–Al2O3 nano-composite powders produced by a thermochemical route" in Journal of the Serbian Chemical Society, 72, no. 11 (2007):1115-1125,
https://doi.org/doi: 10.2998/JSC0711115K . .