TY - JOUR

T1 - Additive manufacturing of highly textured alumina ceramics

AU - Hofer, Anna-Katharina

AU - Kraleva, Irina

AU - Bermejo, Raul

N1 - Publisher Copyright: © 2021 The Authors

PY - 2021/3

Y1 - 2021/3

N2 - In this work we demonstrate the feasibility of fabricating textured alumina employing a lithography-based ceramic manufacturing process. The combination of vat rotation and platform immersion contributes to the alignment of alumina templates during printing. Templated Grain Growth during sintering provides a high degree of texture (Lotgering Factor ​~ ​0.80) with relatively low porosity (approx. 7%). A comparable characteristic biaxial strength of 640 ​MPa and 570 ​MPa was measured for textured and equiaxed alumina samples, opening the path for 3D printing textured ceramics of complex architectures for structural and functional applications.

AB - In this work we demonstrate the feasibility of fabricating textured alumina employing a lithography-based ceramic manufacturing process. The combination of vat rotation and platform immersion contributes to the alignment of alumina templates during printing. Templated Grain Growth during sintering provides a high degree of texture (Lotgering Factor ​~ ​0.80) with relatively low porosity (approx. 7%). A comparable characteristic biaxial strength of 640 ​MPa and 570 ​MPa was measured for textured and equiaxed alumina samples, opening the path for 3D printing textured ceramics of complex architectures for structural and functional applications.

KW - 3D-printed ceramics

KW - 3D-printing

KW - Additive manufacturing

KW - LCM-technology

KW - Textured alumina

KW - Textured microstructure

UR - http://www.scopus.com/inward/record.url?scp=85106561454&partnerID=8YFLogxK

U2 - https://doi.org/10.1016/j.oceram.2021.100085

DO - https://doi.org/10.1016/j.oceram.2021.100085

M3 - Article

VL - 5

JO - Open ceramics

JF - Open ceramics

SN - 2666-5395

M1 - 100085

ER -