Additive manufacturing of highly textured alumina ceramics

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 p...

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Main Authors: Anna-Katharina Hofer, Irina Kraleva, Raul Bermejo
Format: Article
Language:English
Published: Elsevier 2021-03-01
Series:Open Ceramics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2666539521000316
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author Anna-Katharina Hofer
Irina Kraleva
Raul Bermejo
author_facet Anna-Katharina Hofer
Irina Kraleva
Raul Bermejo
author_sort Anna-Katharina Hofer
collection DOAJ
description 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.
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spelling doaj.art-5f20e4838fcf403a9fbdbebd678c1abf2022-12-21T21:24:57ZengElsevierOpen Ceramics2666-53952021-03-015100085Additive manufacturing of highly textured alumina ceramicsAnna-Katharina Hofer0Irina Kraleva1Raul Bermejo2Corresponding author.; Department of Materials Science, Montanuniversität Leoben, Franz Josef Strasse 18, A-8700, Leoben, AustriaDepartment of Materials Science, Montanuniversität Leoben, Franz Josef Strasse 18, A-8700, Leoben, AustriaDepartment of Materials Science, Montanuniversität Leoben, Franz Josef Strasse 18, A-8700, Leoben, AustriaIn 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.http://www.sciencedirect.com/science/article/pii/S2666539521000316LCM-technology3D-printingTextured microstructureTextured alumina3D-printed ceramicsAdditive manufacturing
spellingShingle Anna-Katharina Hofer
Irina Kraleva
Raul Bermejo
Additive manufacturing of highly textured alumina ceramics
Open Ceramics
LCM-technology
3D-printing
Textured microstructure
Textured alumina
3D-printed ceramics
Additive manufacturing
title Additive manufacturing of highly textured alumina ceramics
title_full Additive manufacturing of highly textured alumina ceramics
title_fullStr Additive manufacturing of highly textured alumina ceramics
title_full_unstemmed Additive manufacturing of highly textured alumina ceramics
title_short Additive manufacturing of highly textured alumina ceramics
title_sort additive manufacturing of highly textured alumina ceramics
topic LCM-technology
3D-printing
Textured microstructure
Textured alumina
3D-printed ceramics
Additive manufacturing
url http://www.sciencedirect.com/science/article/pii/S2666539521000316
work_keys_str_mv AT annakatharinahofer additivemanufacturingofhighlytexturedaluminaceramics
AT irinakraleva additivemanufacturingofhighlytexturedaluminaceramics
AT raulbermejo additivemanufacturingofhighlytexturedaluminaceramics