Gelcasting of alumina
Livenje Al2O3 praha geliranjem
Апстракт
Gel casting, a novel method for molding ceramic powders, based on the synthesis concepts of polymer chemistry and traditional slip casting, has been investigated. The process comprises the casting of a stable suspension, prepared with high solid content (ceramic or metallic powder) and an addition of water soluble organic monomers (monofunctional and difunctional-crosslinking). The key role of the process is in situ polymerization of the organic monomers which form a hydrogel that acts as a powder binder. The gelled parts subsequently undergo drying, machining, burning out and sintering to produce a final ceramic body. In this study, the alumna was used as a model ceramic powder.
Ispitan je savremeni postupak oblikovanja keramičkih prahova, "livenje geliranjem", eng. gelcasting, zasnovan na konceptima polimerne hemije i klasičnog postupka livenja. Postupak obuhvata livenje stabilne suspenzije pripremljene sa velikom količinom čvrste faze (keramički ili metalni prah) i rastvorom organskih monomera, monofunkcionalnog i difunkcionalnog-umreživača, u odgovarajuće kalupe željene geometrije. Specifičnost postupka se ogleda u in situ polimerizaciji monomera u hidrogel koji služi kao vezivo praha. Gelirani odlivci se zatim suše, po potrebi mašinski obrađuju, termički tretiraju i sinteruju do finalne keramike. Kao model prah u radu je korišćen aluminijum-oksid.
Кључне речи:
gel casting / Al2O3 / acryl amide / methylene bisacrylamide / machining / livenje geliranjem / Al2O3 / akrilamid / metilenbisakrilamid / mašinska obradljivostИзвор:
Tehnika - Novi materijali, 2005, 14, 4, 15-19Издавач:
- Savez inženjera i tehničara Srbije, Beograd
Институција/група
Tehnološko-metalurški fakultetTY - JOUR AU - Čerović, Ljiljana S. AU - Popović, Ivanka AU - Katsikas, Lynne AU - Filipović, Jovanka PY - 2005 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/797 AB - Gel casting, a novel method for molding ceramic powders, based on the synthesis concepts of polymer chemistry and traditional slip casting, has been investigated. The process comprises the casting of a stable suspension, prepared with high solid content (ceramic or metallic powder) and an addition of water soluble organic monomers (monofunctional and difunctional-crosslinking). The key role of the process is in situ polymerization of the organic monomers which form a hydrogel that acts as a powder binder. The gelled parts subsequently undergo drying, machining, burning out and sintering to produce a final ceramic body. In this study, the alumna was used as a model ceramic powder. AB - Ispitan je savremeni postupak oblikovanja keramičkih prahova, "livenje geliranjem", eng. gelcasting, zasnovan na konceptima polimerne hemije i klasičnog postupka livenja. Postupak obuhvata livenje stabilne suspenzije pripremljene sa velikom količinom čvrste faze (keramički ili metalni prah) i rastvorom organskih monomera, monofunkcionalnog i difunkcionalnog-umreživača, u odgovarajuće kalupe željene geometrije. Specifičnost postupka se ogleda u in situ polimerizaciji monomera u hidrogel koji služi kao vezivo praha. Gelirani odlivci se zatim suše, po potrebi mašinski obrađuju, termički tretiraju i sinteruju do finalne keramike. Kao model prah u radu je korišćen aluminijum-oksid. PB - Savez inženjera i tehničara Srbije, Beograd T2 - Tehnika - Novi materijali T1 - Gelcasting of alumina T1 - Livenje Al2O3 praha geliranjem EP - 19 IS - 4 SP - 15 VL - 14 UR - https://hdl.handle.net/21.15107/rcub_technorep_797 ER -
@article{ author = "Čerović, Ljiljana S. and Popović, Ivanka and Katsikas, Lynne and Filipović, Jovanka", year = "2005", abstract = "Gel casting, a novel method for molding ceramic powders, based on the synthesis concepts of polymer chemistry and traditional slip casting, has been investigated. The process comprises the casting of a stable suspension, prepared with high solid content (ceramic or metallic powder) and an addition of water soluble organic monomers (monofunctional and difunctional-crosslinking). The key role of the process is in situ polymerization of the organic monomers which form a hydrogel that acts as a powder binder. The gelled parts subsequently undergo drying, machining, burning out and sintering to produce a final ceramic body. In this study, the alumna was used as a model ceramic powder., Ispitan je savremeni postupak oblikovanja keramičkih prahova, "livenje geliranjem", eng. gelcasting, zasnovan na konceptima polimerne hemije i klasičnog postupka livenja. Postupak obuhvata livenje stabilne suspenzije pripremljene sa velikom količinom čvrste faze (keramički ili metalni prah) i rastvorom organskih monomera, monofunkcionalnog i difunkcionalnog-umreživača, u odgovarajuće kalupe željene geometrije. Specifičnost postupka se ogleda u in situ polimerizaciji monomera u hidrogel koji služi kao vezivo praha. Gelirani odlivci se zatim suše, po potrebi mašinski obrađuju, termički tretiraju i sinteruju do finalne keramike. Kao model prah u radu je korišćen aluminijum-oksid.", publisher = "Savez inženjera i tehničara Srbije, Beograd", journal = "Tehnika - Novi materijali", title = "Gelcasting of alumina, Livenje Al2O3 praha geliranjem", pages = "19-15", number = "4", volume = "14", url = "https://hdl.handle.net/21.15107/rcub_technorep_797" }
Čerović, L. S., Popović, I., Katsikas, L.,& Filipović, J.. (2005). Gelcasting of alumina. in Tehnika - Novi materijali Savez inženjera i tehničara Srbije, Beograd., 14(4), 15-19. https://hdl.handle.net/21.15107/rcub_technorep_797
Čerović LS, Popović I, Katsikas L, Filipović J. Gelcasting of alumina. in Tehnika - Novi materijali. 2005;14(4):15-19. https://hdl.handle.net/21.15107/rcub_technorep_797 .
Čerović, Ljiljana S., Popović, Ivanka, Katsikas, Lynne, Filipović, Jovanka, "Gelcasting of alumina" in Tehnika - Novi materijali, 14, no. 4 (2005):15-19, https://hdl.handle.net/21.15107/rcub_technorep_797 .