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Additive manufacturing of highly textured alumina ceramics

Authors :
Raul Bermejo
Anna-Katharina Hofer
Irina Kraleva
Source :
Open Ceramics, Vol 5, Iss, Pp 100085-(2021), Open Ceramics
Publication Year :
2021
Publisher :
Elsevier, 2021.

Abstract

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.

Details

Language :
English
ISSN :
26665395
Volume :
5
Database :
OpenAIRE
Journal :
Open Ceramics
Accession number :
edsair.doi.dedup.....39db28931049bf01de8a444e4f686ae0