Article
Fabricating Ceramic Components with Water Dissolvable Support Structures by the Ceramic On-Demand Extrusion Process
CIRP Annals - Manufacturing Technology
Abstract
This paper describes a further development of the novel Ceramic On-Demand Extrusion (CODE) process, with focus on fabricating ceramic components that have external/internal features and cannot be fabricated without the use of support structures. The minimum angle of a wedge-shaped part that can be fabricated using Al2O3 (alumina) paste without a support structure is first determined. An inorganic sacrificial material, CaCO3 (calcium carbonate), is then identified for building support structures. After fabrication the green part is dried and then sintered. During sintering, the main material densifies, while the sacrificial material decomposes and is then dissolved in water or acid. Sample parts are fabricated and evaluated.
Department(s)
Mechanical and Aerospace Engineering
Second Department
Materials Science and Engineering
Research Center/Lab(s)
Intelligent Systems Center
Keywords and Phrases
- Additive manufacturing,
- Ceramic,
- Extrusion,
- 3D printers,
- Alumina,
- Calcium carbonate,
- Ceramic materials,
- Fabrication,
- Ground supports,
- Sintering,
- Extrusion process,
- Novel ceramics,
- On demands,
- Sacrificial material,
- Support structures
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2017 Elsevier USA, All rights reserved.
Publication Date
1-1-2017
Publication Date
01 Jan 2017
Disciplines
Citation Information
Wenbin Li, Amir Ghazanfari, Devin McMillen, Ming-Chuan Leu, et al.. "Fabricating Ceramic Components with Water Dissolvable Support Structures by the Ceramic On-Demand Extrusion Process" CIRP Annals - Manufacturing Technology Vol. 66 Iss. 1 (2017) p. 225 - 228 ISSN: 0007-8506 Available at: http://works.bepress.com/greg-hilmas/64/