Journal ArticleDOI
Robocasting of dense yttria-stabilized zirconia structures
TLDR
In this paper, a nano-sized yttria-stabilized zirconia (YSZ) powder has been developed for robocasting purpose, and both fully and partially stabilized YSZ green bodies with complex morphologies were successfully printed in ambient conditions using relatively low-solid-content ceramic suspensions ( 94% of the theoretical density despite its high linear shrinkage up to 33%).Abstract:
Advanced ceramic materials with complex design have become inseparable from the current engineering applications. Due to the limitation of traditional ceramic processing, ceramic additive manufacturing (AM) which allows high degree of fabrication freedom has gained significant research interest. Among these AM techniques, low-cost robocasting technique is often considered to fabricate complex ceramic components. In this work, aqueous ceramic suspension comprising of commercial nano-sized yttria-stabilized zirconia (YSZ) powder has been developed for robocasting purpose. Both fully and partially stabilized YSZ green bodies with complex morphologies were successfully printed in ambient conditions using relatively low-solid-content ceramic suspensions ( 94% of the theoretical density despite its high linear shrinkage (up to 33%). The microstructure analysis indicated that dense fully and partially stabilized YSZ with grain size as small as 1.40 ± 0.53 and 0.38 ± 0.10 μm can be obtained, respectively. The sintered partially stabilized YSZ solid and porous mesh samples (porosity of macro-pores >45%) exhibited hardness up to 13.29 GPa and flexural strengths up to 242.8 ± 11.4 and 57.3 ± 5.2 MPa, respectively. The aqueous-based ceramic suspension was also demonstrated to be suitable for the fabrication of large YSZ parts with good repeatability.read more
Citations
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Journal ArticleDOI
Ceramic Robocasting: Recent Achievements, Potential, and Future Developments.
Erwin Peng,Danwei Zhang,Jun Ding +2 more
TL;DR: A summary of the recent progress on the fabrication of single and multi-ceramic structures by robocasting is provided, as well as the prospects of achieving shapeable ceramic structures.
Journal ArticleDOI
Rheological characterisation of ceramic inks for 3D direct ink writing: A review
TL;DR: In this paper, the authors provide an overview of the main types of ceramic ink formulations developed for direct ink writing and a detailed description of the more relevant rheological tests for assessing the printability of ceramic pastes.
Journal ArticleDOI
Direct ink writing (DIW) of structural and functional ceramics: Recent achievements and future challenges
Aamir Shahzad,Ismail Lazoglu +1 more
TL;DR: In this article, the state-of-the-art manufacturing of various ceramics such as alumina, zirconia, and their composites through Direct Ink Writing (DIW) is described in detail.
Journal ArticleDOI
Additive manufacturing of zirconia ceramics: a state-of-the-art review
Xiuping Zhang,Xin Wu,Jing Shi +2 more
TL;DR: In this article, the authors reviewed the recent research efforts on zirconia ceramic manufactured using additive manufacturing techniques and provided a comprehensive survey of the existing research, as well as an insightful discussion regarding the potential research in the future.
Journal ArticleDOI
The preparation of SiC-based ceramics by one novel strategy combined 3D printing technology and liquid silicon infiltration process
TL;DR: SiC-based ceramics with periodic structure were successfully fabricated by extrusion freeforming 3D printing technology and liquid silicon infiltration process in this article, which demonstrated big potential to fabricate ceramic components with personalized complex structure.
References
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An overview of zirconia ceramics: Basic properties and clinical applications
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Journal ArticleDOI
Additive Manufacturing of Ceramics: Issues, Potentialities, and Opportunities
TL;DR: Additive manufacturing (AM) is a technology which has the potential not only to change the way of conventional industrial manufacturing processes, adding material instead of subtracting, but also to create entirely new production and business strategies as discussed by the authors.
Journal ArticleDOI
Direct Ink Writing of Three‐Dimensional Ceramic Structures
TL;DR: In this article, both droplet-and filament-based direct ink writing (DIW) techniques are presented, and various ink designs and their corresponding rheological behavior, ink deposition mechanics, potential shapes and the toolpaths required.