Synthesis of the new lost foam refractory coatings based on talc
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2022
Authors
Pavlovic, MarkoNikolić, Jasmina
Andric, Ljubisa
Todorovic, Dejan
Bozic, Katarina
Drmanić, Saša
Article (Published version)
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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 q...uality 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.
Keywords:
Keywords / mechanical activation / talc-based fillers / rheologic properties of coating suspensionsSource:
Journal of the Serbian Chemical Society, 2022, 87, 4, 491-503Funding / projects:
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200026 (University of Belgrade, Institute of Chemistry, Technology and Metallurgy - IChTM) (RS-MESTD-inst-2020-200026)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200023 (Institute of Technology of Nuclear and Other Mineral Row Materials - ITNMS, Belgrade) (RS-MESTD-inst-2020-200023)
- Ministry of Science, Technological Development and Innovation of the Republic of Serbia, institutional funding - 200135 (University of Belgrade, Faculty of Technology and Metallurgy) (RS-MESTD-inst-2020-200135)
Institution/Community
Tehnološko-metalurški fakultetTY - 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 . .