Mechanical Characterization of Parts Produced by Ceramic On-Demand Extrusion Process

Abstract

Ceramic On-Demand Extrusion (CODE) is an additive manufacturing process recently developed to produce dense three-dimensional ceramic components. In this paper, the properties of parts produced using this freeform extrusion fabrication process are described. High solids loading (~60 vol%) alumina paste was prepared to fabricate parts and standard test methods were employed to examine their properties including the density, strength, Young's modulus, Weibull modulus, toughness, and hardness. Microstructural evaluation was also performed to measure the grain size and critical flaw size. The results indicate that the properties of parts surpass most other ceramic additive manufacturing processes and match conventional fabrication techniques.

Department(s)

Mechanical and Aerospace Engineering

Second Department

Materials Science and Engineering

Research Center/Lab(s)

Intelligent Systems Center

Keywords and Phrases

Al2O3; aluminum oxide; ceramic on-demand extrusion; extrusion-based additive manufacturing; mechanical properties; 3D printers; Alumina; Ceramic materials; Elastic moduli; Manufacture

International Standard Serial Number (ISSN)

1546-542X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2017 Blackwell Publishing Ltd, All rights reserved.

Publication Date

01 May 2017

Link to Full Text

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