TY  - JOUR
AU  - Pavlovic, Marko
AU  - Nikolić, Jasmina
AU  - Andric, Ljubisa
AU  - Todorovic, Dejan
AU  - Bozic, Katarina
AU  - Drmanić, Saša
PY  - 2022
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5017
AB  - This paper is focused on the preparation procedures, using a talc-based filler, to improve the rheologic properties of the lost foam refractory coatings. Talc, with grain size of 40 .m, was mechanically activated in a vibration mill over the following times: 10, 20 and 30 min. Depending on the time required for the mechanical activation, the change in the filler grain size and shape was analysed along their effects on the talc-filled lost foam coating dispersion ability and stability. In order to characterize the filler, the following methods were used: X-ray diffraction, scanning electron microscopy and optic microscopy. The coating composition was tuned by choosing the suitable grain size and shape factor of the activated filler. In addition, different coating components (additives, solvent) were applied to alter the coating generation procedure. It was shown that the application of this type of the lost foam refractory coatings - water-based coatings - have a positive influence on quality of the aluminium alloy castings, which contributes to reducing the cost of cleaning and processing of the castings. Also, alcohol-based refractory coatings with talc-based activated fillers were tested and used to have the castings produced in the sand moulds.
T2  - Journal of the Serbian Chemical Society
T1  - Synthesis of the new lost foam refractory coatings based on talc
EP  - 503
IS  - 4
SP  - 491
VL  - 87
DO  - 10.2298/JSC211019111P
ER  - 

@article{
author = "Pavlovic, Marko and Nikolić, Jasmina and Andric, Ljubisa and Todorovic, Dejan and Bozic, Katarina and Drmanić, Saša",
year = "2022",
abstract = "This paper is focused on the preparation procedures, using a talc-based filler, to improve the rheologic properties of the lost foam refractory coatings. Talc, with grain size of 40 .m, was mechanically activated in a vibration mill over the following times: 10, 20 and 30 min. Depending on the time required for the mechanical activation, the change in the filler grain size and shape was analysed along their effects on the talc-filled lost foam coating dispersion ability and stability. In order to characterize the filler, the following methods were used: X-ray diffraction, scanning electron microscopy and optic microscopy. The coating composition was tuned by choosing the suitable grain size and shape factor of the activated filler. In addition, different coating components (additives, solvent) were applied to alter the coating generation procedure. It was shown that the application of this type of the lost foam refractory coatings - water-based coatings - have a positive influence on quality of the aluminium alloy castings, which contributes to reducing the cost of cleaning and processing of the castings. Also, alcohol-based refractory coatings with talc-based activated fillers were tested and used to have the castings produced in the sand moulds.",
journal = "Journal of the Serbian Chemical Society",
title = "Synthesis of the new lost foam refractory coatings based on talc",
pages = "503-491",
number = "4",
volume = "87",
doi = "10.2298/JSC211019111P"
}

Pavlovic, M., Nikolić, J., Andric, L., Todorovic, D., Bozic, K.,& Drmanić, S.. (2022). Synthesis of the new lost foam refractory coatings based on talc. in Journal of the Serbian Chemical Society, 87(4), 491-503.
https://doi.org/10.2298/JSC211019111P

Pavlovic M, Nikolić J, Andric L, Todorovic D, Bozic K, Drmanić S. Synthesis of the new lost foam refractory coatings based on talc. in Journal of the Serbian Chemical Society. 2022;87(4):491-503.
doi:10.2298/JSC211019111P .

Pavlovic, Marko, Nikolić, Jasmina, Andric, Ljubisa, Todorovic, Dejan, Bozic, Katarina, Drmanić, Saša, "Synthesis of the new lost foam refractory coatings based on talc" in Journal of the Serbian Chemical Society, 87, no. 4 (2022):491-503,
https://doi.org/10.2298/JSC211019111P . .

TY  - JOUR
AU  - Pavlovic, Marko
AU  - Cvetkovic, Aleksandar
AU  - Dojčinović, Marina
AU  - Trumbulovic, Ljiljana
AU  - Milovanovic, Aleksandar
PY  - 2021
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/4813
AB  - The paper presents the results of synthesis and characterization of new refractory coatings based on basalt and epoxy system. Coatings are intended to protect the surfaces of parts of equipment and various structures in civil and mechanical engineering and metallurgy which are exposed to wear, corrosion, or cavitation during exploitation. Coating composition, procedures for preparation of components from coating composition, synthesis procedures, and application of coatings are investigated. Several methods are used to characterize the coating: X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), optical microscopy and ultrasonic vibration method with a stationary sample according to ASTM G32 standard. Material resistance to the action of cavitation is determined using the ultrasonic method. In order to monitor the formation and development of surface damage on samples under the effect of cavitation, the morphology of surface coating damage is analysed using scanning electron microscopy. Results show high resistance of the tested basalt-based coatings under the action of cavitation, with low cavitation rate (0.04 mg/min), low mass losses of coating and minor surface damage during exposure. This indicates the possibility of applying this type of refractory coating for the protection of various metallic and non-metallic structures in conditions of wear and cavitation.
T2  - Structural Integrity and Life-Integritet I Vek Konstrukcija
T1  - Cavitation resistance of basalt-based protective coatings and epoxy system
EP  - 189
IS  - 2
SP  - 185
VL  - 21
UR  - https://hdl.handle.net/21.15107/rcub_technorep_4813
ER  - 

@article{
author = "Pavlovic, Marko and Cvetkovic, Aleksandar and Dojčinović, Marina and Trumbulovic, Ljiljana and Milovanovic, Aleksandar",
year = "2021",
abstract = "The paper presents the results of synthesis and characterization of new refractory coatings based on basalt and epoxy system. Coatings are intended to protect the surfaces of parts of equipment and various structures in civil and mechanical engineering and metallurgy which are exposed to wear, corrosion, or cavitation during exploitation. Coating composition, procedures for preparation of components from coating composition, synthesis procedures, and application of coatings are investigated. Several methods are used to characterize the coating: X-ray diffraction analysis (XRD), scanning electron microscopy (SEM), optical microscopy and ultrasonic vibration method with a stationary sample according to ASTM G32 standard. Material resistance to the action of cavitation is determined using the ultrasonic method. In order to monitor the formation and development of surface damage on samples under the effect of cavitation, the morphology of surface coating damage is analysed using scanning electron microscopy. Results show high resistance of the tested basalt-based coatings under the action of cavitation, with low cavitation rate (0.04 mg/min), low mass losses of coating and minor surface damage during exposure. This indicates the possibility of applying this type of refractory coating for the protection of various metallic and non-metallic structures in conditions of wear and cavitation.",
journal = "Structural Integrity and Life-Integritet I Vek Konstrukcija",
title = "Cavitation resistance of basalt-based protective coatings and epoxy system",
pages = "189-185",
number = "2",
volume = "21",
url = "https://hdl.handle.net/21.15107/rcub_technorep_4813"
}

Pavlovic, M., Cvetkovic, A., Dojčinović, M., Trumbulovic, L.,& Milovanovic, A.. (2021). Cavitation resistance of basalt-based protective coatings and epoxy system. in Structural Integrity and Life-Integritet I Vek Konstrukcija, 21(2), 185-189.
https://hdl.handle.net/21.15107/rcub_technorep_4813

Pavlovic M, Cvetkovic A, Dojčinović M, Trumbulovic L, Milovanovic A. Cavitation resistance of basalt-based protective coatings and epoxy system. in Structural Integrity and Life-Integritet I Vek Konstrukcija. 2021;21(2):185-189.
https://hdl.handle.net/21.15107/rcub_technorep_4813 .

Pavlovic, Marko, Cvetkovic, Aleksandar, Dojčinović, Marina, Trumbulovic, Ljiljana, Milovanovic, Aleksandar, "Cavitation resistance of basalt-based protective coatings and epoxy system" in Structural Integrity and Life-Integritet I Vek Konstrukcija, 21, no. 2 (2021):185-189,
https://hdl.handle.net/21.15107/rcub_technorep_4813 .