TY  - JOUR
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Rihtarsic, J.
AU  - Trefalt, G.
AU  - Huskic, M.
AU  - Zagar, E.
AU  - Malic, Barbara
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1019
AB  - Voronoi analysis is implemented to assess the influence of fiber content on the microstructure and mechanical properties of bulk-molding compounds containing different weight fractions of E-glass fibers (EGF) (5-20 wt%). The fiber distribution in the polymer matrix is analyzed by scanning electron microscopy followed by the Voronoi tessellations, radial distribution function and statistical calculations. The experimental results are compared to modelled microstructures. The derived microstructural descriptors allow us to correlate the fiber weight content and the degree of fiber distribution homogeneity with the mechanical properties of EGF-reinforced composites. The distribution of fibers in composites with 10 and 15 wt% of fibers could be considered as the most homogeneous. This is in a good agreement with the results of the flexural strength and dynamic mechanical analyses, which confirmed that the latter samples exhibit the highest level of reinforcement.
PB  - Budapest Univ Technol & Econ, Budapest
T2  - Express Polymer Letters
T1  - A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties
EP  - 505
IS  - 6
SP  - 493
VL  - 10
DO  - 10.3144/expresspolymlett.2016.47
ER  - 

@article{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Rihtarsic, J. and Trefalt, G. and Huskic, M. and Zagar, E. and Malic, Barbara",
year = "2016",
abstract = "Voronoi analysis is implemented to assess the influence of fiber content on the microstructure and mechanical properties of bulk-molding compounds containing different weight fractions of E-glass fibers (EGF) (5-20 wt%). The fiber distribution in the polymer matrix is analyzed by scanning electron microscopy followed by the Voronoi tessellations, radial distribution function and statistical calculations. The experimental results are compared to modelled microstructures. The derived microstructural descriptors allow us to correlate the fiber weight content and the degree of fiber distribution homogeneity with the mechanical properties of EGF-reinforced composites. The distribution of fibers in composites with 10 and 15 wt% of fibers could be considered as the most homogeneous. This is in a good agreement with the results of the flexural strength and dynamic mechanical analyses, which confirmed that the latter samples exhibit the highest level of reinforcement.",
publisher = "Budapest Univ Technol & Econ, Budapest",
journal = "Express Polymer Letters",
title = "A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties",
pages = "505-493",
number = "6",
volume = "10",
doi = "10.3144/expresspolymlett.2016.47"
}

Bertoncelj, B., Vojisavljević, K., Rihtarsic, J., Trefalt, G., Huskic, M., Zagar, E.,& Malic, B.. (2016). A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties. in Express Polymer Letters
Budapest Univ Technol & Econ, Budapest., 10(6), 493-505.
https://doi.org/10.3144/expresspolymlett.2016.47

Bertoncelj B, Vojisavljević K, Rihtarsic J, Trefalt G, Huskic M, Zagar E, Malic B. A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties. in Express Polymer Letters. 2016;10(6):493-505.
doi:10.3144/expresspolymlett.2016.47 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Rihtarsic, J., Trefalt, G., Huskic, M., Zagar, E., Malic, Barbara, "A Voronoi-diagram analysis of the microstructures in bulk-molding compounds and its correlation with the mechanical properties" in Express Polymer Letters, 10, no. 6 (2016):493-505,
https://doi.org/10.3144/expresspolymlett.2016.47 . .

TY  - JOUR
AU  - Bertoncelj, Barbara
AU  - Vojisavljević, Katarina
AU  - Vrabelj, Marko
AU  - Malic, Barbara
PY  - 2015
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/911
AB  - The influence of the fraction of the glass-fiber (EGF) reinforcement, from 0 to 15 wt%, on the thermal properties of the polymer-matrix composites with the CaCO3 mineral filler is studied. The proper ratio of glass-fibers and mineral filler is important for obtaining good mechanical, and at the same time good thermal properties of the composites used in production of high-quality components in electro industry. For this purpose, the thermal stability and the thermal properties of the fiber-reinforced composites are determined from a set of different characterization techniques and linked with the microstructural changes induced by the different fiber content. The composites are stable upon heating to 260 degrees C, and undergo thermal oxidation between 280 and 560 degrees C, as found by thermogravimetric and differential thermal analysis. The specific heat capacity, C-p, of the composites slightly increases with increasing EGF content for 0 to 10 wt% EGF, with respective values 0.899 J/gK and 0.903 J/gK at 20 degrees C. Slightly lower Cp values of the composite with 15 wt% EGF could be related to a non-uniform distribution of EGF and presence of voids evidenced by scanning electron microscopy. Thermal conductivity of the composites decreases with increasing EGF content from 0.960(6) W/mK to 0.878(2) W/mK for 0 and 15 wt% EGF, respectively.
PB  - Soc Microelectronics, Electron Components Materials-Midem, Ljubljjana
T2  - Informacije Midem-Journal of Microelectronics Electronic Components and Materials
T1  - Thermal properties of polymer-matrix composites reinforced with E-glass fibers
EP  - 221
IS  - 3
SP  - 216
VL  - 45
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_911
ER  - 

@article{
author = "Bertoncelj, Barbara and Vojisavljević, Katarina and Vrabelj, Marko and Malic, Barbara",
year = "2015",
abstract = "The influence of the fraction of the glass-fiber (EGF) reinforcement, from 0 to 15 wt%, on the thermal properties of the polymer-matrix composites with the CaCO3 mineral filler is studied. The proper ratio of glass-fibers and mineral filler is important for obtaining good mechanical, and at the same time good thermal properties of the composites used in production of high-quality components in electro industry. For this purpose, the thermal stability and the thermal properties of the fiber-reinforced composites are determined from a set of different characterization techniques and linked with the microstructural changes induced by the different fiber content. The composites are stable upon heating to 260 degrees C, and undergo thermal oxidation between 280 and 560 degrees C, as found by thermogravimetric and differential thermal analysis. The specific heat capacity, C-p, of the composites slightly increases with increasing EGF content for 0 to 10 wt% EGF, with respective values 0.899 J/gK and 0.903 J/gK at 20 degrees C. Slightly lower Cp values of the composite with 15 wt% EGF could be related to a non-uniform distribution of EGF and presence of voids evidenced by scanning electron microscopy. Thermal conductivity of the composites decreases with increasing EGF content from 0.960(6) W/mK to 0.878(2) W/mK for 0 and 15 wt% EGF, respectively.",
publisher = "Soc Microelectronics, Electron Components Materials-Midem, Ljubljjana",
journal = "Informacije Midem-Journal of Microelectronics Electronic Components and Materials",
title = "Thermal properties of polymer-matrix composites reinforced with E-glass fibers",
pages = "221-216",
number = "3",
volume = "45",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_911"
}

Bertoncelj, B., Vojisavljević, K., Vrabelj, M.,& Malic, B.. (2015). Thermal properties of polymer-matrix composites reinforced with E-glass fibers. in Informacije Midem-Journal of Microelectronics Electronic Components and Materials
Soc Microelectronics, Electron Components Materials-Midem, Ljubljjana., 45(3), 216-221.
https://hdl.handle.net/21.15107/rcub_rimsi_911

Bertoncelj B, Vojisavljević K, Vrabelj M, Malic B. Thermal properties of polymer-matrix composites reinforced with E-glass fibers. in Informacije Midem-Journal of Microelectronics Electronic Components and Materials. 2015;45(3):216-221.
https://hdl.handle.net/21.15107/rcub_rimsi_911 .

Bertoncelj, Barbara, Vojisavljević, Katarina, Vrabelj, Marko, Malic, Barbara, "Thermal properties of polymer-matrix composites reinforced with E-glass fibers" in Informacije Midem-Journal of Microelectronics Electronic Components and Materials, 45, no. 3 (2015):216-221,
https://hdl.handle.net/21.15107/rcub_rimsi_911 .