TY  - JOUR
AU  - Romčević, Nebojša Ž.
AU  - Gilić, Martina D.
AU  - Anzel, I.
AU  - Rudolf, R.
AU  - Mitrić, Miodrag
AU  - Romčević, Maja J.
AU  - Hadžić, Branka B.
AU  - Joksimović, Danijela
AU  - Damjanovic, M. Petrovic
AU  - Kos, M.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5968
AB  - Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metal-matrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of Cu, CuO, Cu2O, Cu4O3 or Al2O3 structural characteristics, depending on type of sample.
T2  - Journal of mining and metallurgy, Section B: Metallurgy
T1  - Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study
VL  - 50
IS  - 1
SP  - 61
EP  - 68
DO  - 10.2298/JMMB140121007R
ER  - 

@article{
author = "Romčević, Nebojša Ž. and Gilić, Martina D. and Anzel, I. and Rudolf, R. and Mitrić, Miodrag and Romčević, Maja J. and Hadžić, Branka B. and Joksimović, Danijela and Damjanovic, M. Petrovic and Kos, M.",
year = "2014",
abstract = "Our work deals with the problem of producing a complex metal-ceramic composite using the processes of internal oxidation (IO) and severe plastic deformation. For this purpose, Cu-Al alloy with 0.4wt.% of Al was used. IO of sample serves in the first step of the processing as a means for attaining a fine dispersion of nanosized oxide particles in the metal matrix. Production technology continues with repeated application of severe plastic deformation (SPD) of the resulting metal-matrix composite to produce the bulk nanoscaled structural material. SPD was carried out with equal channel angular pressing (ECAP), which allowed that the material could be subjected to an intense plastic strain through simple shear. Microstructural characteristics of one phase and multiphase material was studied on internally oxidized Cu with 0.4wt.% of Al sample composed of one phase copper-aluminum solid solution in the core and fine dispersed oxide particles in the same matrix in the mantle region. In this manner AFM, X-ray diffraction and Raman spectroscopy were used. Local structures in plastically deformed samples reflect presence of Cu, CuO, Cu2O, Cu4O3 or Al2O3 structural characteristics, depending on type of sample.",
journal = "Journal of mining and metallurgy, Section B: Metallurgy",
title = "Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study",
volume = "50",
number = "1",
pages = "61-68",
doi = "10.2298/JMMB140121007R"
}

Romčević, N. Ž., Gilić, M. D., Anzel, I., Rudolf, R., Mitrić, M., Romčević, M. J., Hadžić, B. B., Joksimović, D., Damjanovic, M. P.,& Kos, M.. (2014). Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study. in Journal of mining and metallurgy, Section B: Metallurgy, 50(1), 61-68.
https://doi.org/10.2298/JMMB140121007R

Romčević NŽ, Gilić MD, Anzel I, Rudolf R, Mitrić M, Romčević MJ, Hadžić BB, Joksimović D, Damjanovic MP, Kos M. Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study. in Journal of mining and metallurgy, Section B: Metallurgy. 2014;50(1):61-68.
doi:10.2298/JMMB140121007R .

Romčević, Nebojša Ž., Gilić, Martina D., Anzel, I., Rudolf, R., Mitrić, Miodrag, Romčević, Maja J., Hadžić, Branka B., Joksimović, Danijela, Damjanovic, M. Petrovic, Kos, M., "Determination of Microstructural Changes By Severely Plastically Deformed Copper-Aluminum Alloy: Optical Study" in Journal of mining and metallurgy, Section B: Metallurgy, 50, no. 1 (2014):61-68,
https://doi.org/10.2298/JMMB140121007R . .

TY  - JOUR
AU  - Jokanović, Vukoman R.
AU  - Čolović, Božana M.
AU  - Jokanovic, B.
AU  - Rudolf, R.
AU  - Trajković, Vladimir S.
PY  - 2014
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/5956
AB  - The SiO2 thin films (STFs) were deposited on the surfaces of stainless steel tapes and their activity was particularly investigated from the aspect of the number density of hydroxyl groups on their surfaces. The calculation procedure of density of active OH groups includes determination of average length of silica chains that constitute silica sol particles with almost uniform size, on the base of thermogravimetric analysis. The size of SiO2 particles is analyzed by transmission electron microscopy and dynamic light scattering method. Fibroblast (L929) cell densities on the surfaces of these films were investigated using phase contrast microcopy. It was shown that there is a relationship between OH group densities and density of attached cells. Besides, the cytotoxicity effect was studied and compared for various thermally treated STFs. (c) 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 1707-1714, 2014.
T2  - Journal of Biomedical Materials Research. Part A
T1  - Relationship between activity of silica thin films and density of cells occupation
VL  - 102
IS  - 6
SP  - 1707
EP  - 1714
DO  - 10.1002/jbm.a.34844
ER  - 

@article{
author = "Jokanović, Vukoman R. and Čolović, Božana M. and Jokanovic, B. and Rudolf, R. and Trajković, Vladimir S.",
year = "2014",
abstract = "The SiO2 thin films (STFs) were deposited on the surfaces of stainless steel tapes and their activity was particularly investigated from the aspect of the number density of hydroxyl groups on their surfaces. The calculation procedure of density of active OH groups includes determination of average length of silica chains that constitute silica sol particles with almost uniform size, on the base of thermogravimetric analysis. The size of SiO2 particles is analyzed by transmission electron microscopy and dynamic light scattering method. Fibroblast (L929) cell densities on the surfaces of these films were investigated using phase contrast microcopy. It was shown that there is a relationship between OH group densities and density of attached cells. Besides, the cytotoxicity effect was studied and compared for various thermally treated STFs. (c) 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 1707-1714, 2014.",
journal = "Journal of Biomedical Materials Research. Part A",
title = "Relationship between activity of silica thin films and density of cells occupation",
volume = "102",
number = "6",
pages = "1707-1714",
doi = "10.1002/jbm.a.34844"
}

Jokanović, V. R., Čolović, B. M., Jokanovic, B., Rudolf, R.,& Trajković, V. S.. (2014). Relationship between activity of silica thin films and density of cells occupation. in Journal of Biomedical Materials Research. Part A, 102(6), 1707-1714.
https://doi.org/10.1002/jbm.a.34844

Jokanović VR, Čolović BM, Jokanovic B, Rudolf R, Trajković VS. Relationship between activity of silica thin films and density of cells occupation. in Journal of Biomedical Materials Research. Part A. 2014;102(6):1707-1714.
doi:10.1002/jbm.a.34844 .

Jokanović, Vukoman R., Čolović, Božana M., Jokanovic, B., Rudolf, R., Trajković, Vladimir S., "Relationship between activity of silica thin films and density of cells occupation" in Journal of Biomedical Materials Research. Part A, 102, no. 6 (2014):1707-1714,
https://doi.org/10.1002/jbm.a.34844 . .