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Article
Properties of Partially Stabilized Zirconia Components Fabricated by the Ceramic On-Demand Extrusion Process
Solid Freeform Fabrication 2016
  • Wenbin Li
  • Amir Ghazanfari
  • Devin McMillen
  • Ming-Chuan Leu, Missouri University of Science and Technology
  • Greg Hilmas, Missouri University of Science and Technology
  • Jeremy Lee Watts, Missouri University of Science and Technology
Abstract

The Ceramic On-Demand Extrusion (CODE) process is a novel additive manufacturing process for fabricating dense ceramic components from aqueous pastes of high solids loading. In this study, 3 mol% Y2O3 stabilized tetragonal zirconia polycrystal (3Y-TZP) parts were fabricated using the CODE process. The parts were then dried in a humidity controlled environmental chamber and sintered under atmospheric pressure. Mechanical properties of the sintered parts were examined using ASTM standard test techniques, including density, Young’s modulus, flexural strength, Weibull modulus, fracture toughness and Vickers hardness. The microstructure was analyzed, and grain size was measured using scanning electron microscopy. The results compared with those from Direct Inkjet Printing, Selective Laser Sintering, and other extrusion-based processes indicated that zirconia parts produced by CODE exhibit superior mechanical properties among the additive manufacturing processes. Several example parts were produced to demonstrate CODE’s capability for fabricating geometrically complex ceramic parts.

Meeting Name
27th Annual International Solid Freeform Fabrication Symposium -- An Additive Manufacturing Conference (2016: Aug. 8-10, Austin, TX)
Department(s)
Mechanical and Aerospace Engineering
Second Department
Materials Science and Engineering
Research Center/Lab(s)
Intelligent Systems Center
Document Type
Article - Conference proceedings
Document Version
Final Version
File Type
text
Language(s)
English
Publication Date
8-10-2016
Citation Information
Wenbin Li, Amir Ghazanfari, Devin McMillen, Ming-Chuan Leu, et al.. "Properties of Partially Stabilized Zirconia Components Fabricated by the Ceramic On-Demand Extrusion Process" Solid Freeform Fabrication 2016 (2016) p. 916 - 928
Available at: http://works.bepress.com/greg-hilmas/233/