The role of paraffin wax on the properties and printability of ethylene vinyl acetate-based feedstocks for alumina fused filament fabrication

Vukšić, Milan (avtor), Bek, Marko (avtor), Slemenik Perše, Lidija (avtor), Maček, Marjeta (avtor), Kocjan, Andraž (avtor), Iveković, Aljaž (avtor)

Fused filament fabrication (FFF) is a versatile and inexpensive additive manufacturing (AM) technique for fabrication of complex shaped ceramic structures. The composition of the binder phase in ceramic-filled feedstock is crucial in determining its rheological behaviour during processing as well as the ability to obtain a defectfree part following debinding and sintering. In this study, the effect of paraffin wax (PW) addition to alumina feedstock with ethylene vinyl acetate (EVA) binder, on feedstock preparation, printability, and debinding has been investigated. The PW incorporation resulted in successful fabrication of a flexible filament with a bending (fracture) strain of 4±1 %. The addition of PW however did not have a significant impact on the debinding of the developed alumina filaments. The printed parts could only be successfully debinded up to 2 mm wall thickness. The subsequent sintering of the debinded parts resulted in a relative density of 98 %.

• Jezik: Angleški jezik
• Ključne besede: additive manufacturing, fused filament fabrication, paraffin wax, alumina
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FS - Fakulteta za strojništvo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: 9 str.
• Številčenje: Vol. 16
• PID: 20.500.12556/RUL-168860
• UDK: 620.1/.2
• ISSN pri članku: 2666-5395
• DOI: 10.1016/j.oceram.2023.100496
• COBISS.SI-ID: 170194691
• Datum objave v RUL: 29.04.2025

Gradivo je del revije

• Naslov: Open ceramics
• Založnik: Elsevier Ltd
• ISSN: 2666-5395
• COBISS.SI-ID: 25023747

Licence

• Licenca: CC BY-NC-ND 4.0, Creative Commons Priznanje avtorstva-Nekomercialno-Brez predelav 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.sl
• Opis: Najbolj omejujoča licenca Creative Commons. Uporabniki lahko prenesejo in delijo delo v nekomercialne namene in ga ne smejo uporabiti za nobene druge namene.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: aditivna proizvodnja, taljeni filamenti, parafinski vosek, aluminijev oksid

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0264
• Naslov: Trajnostni Polimerni materiali in Tehnologije

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P2-0087
• Naslov: Keramični in komplementarni materiali za napredne inženirske in biomedicinske aplikacije