Abstract
This article outlines the current state-of-the-art binder jetting (BJT) additive manufacturing of functional ceramics. The impact of printing parameters, heat treatment processing, and testing conditions on the observed performance of these ceramics is discussed. Additionally, this article discusses the impact of physical properties such as density and mechanical strength on the overall performance of these functional ceramics. Although printing parameters and initial feedstock are crucial for the printability of the desired parts, other factors play an important role in the performance of the ceramic. Thermal post-processing is crucial to achieve optimized functional properties, while the testing orientation is key to obtaining the maximum output from the part. Finally, future research directions for this field are also discussed.
Highlights
Functional ceramics represent a class of materials that exhibit characteristic properties, in addition to those inherent to ceramics, such as chemical and thermal stability
Parameters that affect the printability of functional ceramics are virtually the same as those that affect the printability of binder jetting (BJT) ceramics
We study the impact of saturation on the properties of BJT-printed functional ceramics
Summary
Functional ceramics represent a class of materials that exhibit characteristic properties, in addition to those inherent to ceramics, such as chemical and thermal stability. Ceramics 2020, 3 As discussed, the implementation of additive manufacturing for the fabrication of functional ceramic structures will eliminate the geometry limitations from conventional fabrication methods. BJT selectively deposits liquid binder onto a powder bed of raw material that material systems that incorporate functional ceramics benefit from designed porosity, as well as printhead in a layer-by-layer fashion. BJT is a great candidate for the fabrication of highly efficient material systems where functional ceramics are utilized. In this manuscript, we discuss the impact of printing parameters, processing techniques, and testing conditions on the overall performance of functional ceramics fabricated using BJT additive manufacturing
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