Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route
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Метаподаци
Приказ свих података о документуАпстракт
By hydrometallurgy and powder metallurgy along with prognosis of physicalchemical
properties, a synthesis of new improved materials can be successfully
performed with in advance pre-set properties which is conditioned by a quality of
starting powders i.e. by improving their structure. In accordance with that, this paper
presents synthesis of the nanocomposite Cu-Al2O3 powder by thermochemical method
and sintering with a comparative analysis of the mechanical and electrical properties of
obtained solid samples. Nanocrystaline Cu-Al2O3 powders were produced by
thermochemical method through following stages: spray-drying, oxidation of precursor
powder, reduction by hydrogen and homogenisation. Characterization of powders
included differential-thermal and thermo-gravimetric analysis (DTA-TGA), X-raydiffraction
(XRD) and analytical electron microscopy (AEM) coupled with energetic
dispersive spectroscopy (EDS). Size of produced powders was 20-50nm with noticable
presence of agglo...merates. Composite powders are characterized with Al2O3 homogenous
distribution in copper matrix. Powders were cold pressed with pressure of 500 MPa and
sintered. Sintering of the obtained samples was performed in the hydrogen atmosphere in
isothermal conditions at temperature range from 800 to 900oC and time up to 120
minutes. Characterization of Cu-Al2O3 sintered system included examination of density,
relative volume change, electrical and mechanical properties, examination of
microstructure by SEM analysis, as well as by EDS. The obtained nanocomposite, which
structure is with certain changes preserved in final structure, has provided sintered
material with homogenous distribution of dispersoide in copper matrix, with exceptional
effects of reinforcing and excellent combination of mechanical and electrical properties.
Кључне речи:
Copper / Alumina / Powder / nanocomposite / SinteringИзвор:
Metalurgija - Journal of Metallurgy, 2007, 13, 1, 71-81Издавач:
- Association of Metallurgical Engineers of Serbia AMES
Финансирање / пројекти:
- Proizvodnja submikronskih kompozitnih prahova na bazi bakra i glinice termohemijskim postupkom (451-01-02960/2006-05)
Колекције
Институција/група
Inovacioni centar / Innovation CentreTY - JOUR AU - Anđić, Zoran AU - Korać, Marija AU - Tasić, Miloš AU - Kamberović, Željko AU - Raić, Karlo PY - 2007 UR - http://cherry.chem.bg.ac.rs/handle/123456789/5337 AB - By hydrometallurgy and powder metallurgy along with prognosis of physicalchemical properties, a synthesis of new improved materials can be successfully performed with in advance pre-set properties which is conditioned by a quality of starting powders i.e. by improving their structure. In accordance with that, this paper presents synthesis of the nanocomposite Cu-Al2O3 powder by thermochemical method and sintering with a comparative analysis of the mechanical and electrical properties of obtained solid samples. Nanocrystaline Cu-Al2O3 powders were produced by thermochemical method through following stages: spray-drying, oxidation of precursor powder, reduction by hydrogen and homogenisation. Characterization of powders included differential-thermal and thermo-gravimetric analysis (DTA-TGA), X-raydiffraction (XRD) and analytical electron microscopy (AEM) coupled with energetic dispersive spectroscopy (EDS). Size of produced powders was 20-50nm with noticable presence of agglomerates. Composite powders are characterized with Al2O3 homogenous distribution in copper matrix. Powders were cold pressed with pressure of 500 MPa and sintered. Sintering of the obtained samples was performed in the hydrogen atmosphere in isothermal conditions at temperature range from 800 to 900oC and time up to 120 minutes. Characterization of Cu-Al2O3 sintered system included examination of density, relative volume change, electrical and mechanical properties, examination of microstructure by SEM analysis, as well as by EDS. The obtained nanocomposite, which structure is with certain changes preserved in final structure, has provided sintered material with homogenous distribution of dispersoide in copper matrix, with exceptional effects of reinforcing and excellent combination of mechanical and electrical properties. PB - Association of Metallurgical Engineers of Serbia AMES T2 - Metalurgija - Journal of Metallurgy T1 - Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route VL - 13 IS - 1 SP - 71 EP - 81 UR - https://hdl.handle.net/21.15107/rcub_cherry_5337 ER -
@article{ author = "Anđić, Zoran and Korać, Marija and Tasić, Miloš and Kamberović, Željko and Raić, Karlo", year = "2007", abstract = "By hydrometallurgy and powder metallurgy along with prognosis of physicalchemical properties, a synthesis of new improved materials can be successfully performed with in advance pre-set properties which is conditioned by a quality of starting powders i.e. by improving their structure. In accordance with that, this paper presents synthesis of the nanocomposite Cu-Al2O3 powder by thermochemical method and sintering with a comparative analysis of the mechanical and electrical properties of obtained solid samples. Nanocrystaline Cu-Al2O3 powders were produced by thermochemical method through following stages: spray-drying, oxidation of precursor powder, reduction by hydrogen and homogenisation. Characterization of powders included differential-thermal and thermo-gravimetric analysis (DTA-TGA), X-raydiffraction (XRD) and analytical electron microscopy (AEM) coupled with energetic dispersive spectroscopy (EDS). Size of produced powders was 20-50nm with noticable presence of agglomerates. Composite powders are characterized with Al2O3 homogenous distribution in copper matrix. Powders were cold pressed with pressure of 500 MPa and sintered. Sintering of the obtained samples was performed in the hydrogen atmosphere in isothermal conditions at temperature range from 800 to 900oC and time up to 120 minutes. Characterization of Cu-Al2O3 sintered system included examination of density, relative volume change, electrical and mechanical properties, examination of microstructure by SEM analysis, as well as by EDS. The obtained nanocomposite, which structure is with certain changes preserved in final structure, has provided sintered material with homogenous distribution of dispersoide in copper matrix, with exceptional effects of reinforcing and excellent combination of mechanical and electrical properties.", publisher = "Association of Metallurgical Engineers of Serbia AMES", journal = "Metalurgija - Journal of Metallurgy", title = "Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route", volume = "13", number = "1", pages = "71-81", url = "https://hdl.handle.net/21.15107/rcub_cherry_5337" }
Anđić, Z., Korać, M., Tasić, M., Kamberović, Ž.,& Raić, K.. (2007). Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route. in Metalurgija - Journal of Metallurgy Association of Metallurgical Engineers of Serbia AMES., 13(1), 71-81. https://hdl.handle.net/21.15107/rcub_cherry_5337
Anđić Z, Korać M, Tasić M, Kamberović Ž, Raić K. Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route. in Metalurgija - Journal of Metallurgy. 2007;13(1):71-81. https://hdl.handle.net/21.15107/rcub_cherry_5337 .
Anđić, Zoran, Korać, Marija, Tasić, Miloš, Kamberović, Željko, Raić, Karlo, "Synthesis and sintering of Cu-Al2O3 nanocomposite powders produced by a thermochemical route" in Metalurgija - Journal of Metallurgy, 13, no. 1 (2007):71-81, https://hdl.handle.net/21.15107/rcub_cherry_5337 .