TY - JOUR

T1 - Debinding behaviour of feedstock for material extrusion additive manufacturing of zirconia

AU - Kukla, Christian

AU - Cano Cano, Santiago

AU - Kaylani, Dario

AU - Schuschnigg, Stephan

AU - Holzer, Clemens

AU - Gonzalez-Gutierrez, Joamin

PY - 2019/5/15

Y1 - 2019/5/15

N2 - Material Extrusion Additive Manufacturing (MEAM) is mainly used for the production of polymeric components. Using feedstocks similar to those of powder injection moulding, MEAM of ceramic components is possible. MEAM with filaments is also called Fused Filament Fabrication. Feedstocks are used as filaments; this imposes new requirements such as flexibility for spooling, stiffness to avoid buckling and constant diameter to ensure a consistent mass flow. Additionally, the binder should be removed without damaging the shaped part. In this paper, the debinding behaviour of MEAM feedstocks with zirconia was investigated. It was observed that higher temperature increases the debinding rate, but cracks occurred; the addition of a surfactant speeds up the debinding rate and reduces cracks; and a mixture of 10% isopropanol and 90% cyclohexane initially decreases swelling during debinding, but the debinding rate and the appearance of cracks is unaffected.

AB - Material Extrusion Additive Manufacturing (MEAM) is mainly used for the production of polymeric components. Using feedstocks similar to those of powder injection moulding, MEAM of ceramic components is possible. MEAM with filaments is also called Fused Filament Fabrication. Feedstocks are used as filaments; this imposes new requirements such as flexibility for spooling, stiffness to avoid buckling and constant diameter to ensure a consistent mass flow. Additionally, the binder should be removed without damaging the shaped part. In this paper, the debinding behaviour of MEAM feedstocks with zirconia was investigated. It was observed that higher temperature increases the debinding rate, but cracks occurred; the addition of a surfactant speeds up the debinding rate and reduces cracks; and a mixture of 10% isopropanol and 90% cyclohexane initially decreases swelling during debinding, but the debinding rate and the appearance of cracks is unaffected.

KW - debinding

KW - Additive Manufacturing

KW - Material Extrusion

KW - Zirconia

UR - http://www.scopus.com/inward/record.url?scp=85065760234&partnerID=8YFLogxK

U2 - 10.1080/00325899.2019.1616139

DO - 10.1080/00325899.2019.1616139

M3 - Article

VL - 2019

JO - Powder Metallurgy

JF - Powder Metallurgy

SN - 0032-5899

ER -