ISSN: 2168-9806

Journal of Powder Metallurgy & Mining
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  • Mini Review   
  • J Powder Metall Min 2022, Vol 11(9)Vol 11(9)
  • DOI: 10.4172/2168-9806.1000325

Extrusion of Materials for Additive Ceramic Fabrication Using a PolymerFree Binder for Ceramic Precursors

Jong Wan Ko*
3D Printing Manufacturing Process Center, Advanced Forming Process R&D Group, Korea Institute of Industrial Technology, 40, Techno Saneop-ro 29beon-gil, Nam-gu, Ulsan 44776, Republic of Korea
*Corresponding Author : Jong Wan Ko, 3D Printing Manufacturing Process Center, Advanced Forming Process R&D Group, Korea Institute of Industrial Technology, 40, Techno Saneop-ro 29beon-gil, Nam-gu, Ulsan 44776, The Republic of Korea, Email: jongwan@gmail.com

Received Date: Sep 05, 2022 / Published Date: Sep 28, 2022

Abstract

The high polymeric concentration of the ceramic feedstock materials has made additive manufacturing of thick ceramic items difficult. However, the binder and additives have remained in the polymeric composition despite numerous studies to enhance the ceramic percentage in the feedstock. The use of a sol-gel-based ceramic slurry without the addition of polymeric additives is described as a revolutionary method for highly dense additive manufacturing [1-2]. The most popular fine ceramic substance, alumina, was used as a stand-in for ceramics. The proposed sol-gel solution met the requirements for material extrusion process, such as extrudable viscosity (100 Pa.s) and self-sustainable yield stress, while enabling a high solid loading of roughly 50% vol% without any polymeric dispersion. During the sintering process, this brand-new sol-gel binder system transforms into aluminium oxide nanoparticles that finally fuse to the alumina particles. The as-printed green body had a higher alumina content and a theoretical density of 66%, compared to the conventional moulding methods' results, which were lower. Additionally, a high density of 99.5% of the theoretical value and a reduced linear shrinkage of less than 16% were attained. This study would outline a workable plan for ceramic additive manufacturing as a developing fabrication technique.

Citation: Ko JW (2022) Extrusion of Materials for Additive Ceramic Fabrication Using a Polymer-Free Binder for Ceramic Precursors. J Powder Metall Min 6: 325. Doi: 10.4172/2168-9806.1000325

Copyright: © 2022 Ko JW. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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