journal article·2016-01

Direct Ink Writing of Silicon Carbide for Microwave Optics

Chris M. Larson, Justin J. Choi, Patricio A. Gallardo, Shawn W. Henderson, Michael D. Niemack, Ganesan Rajagopalan, Robert F. Shepherd

Advanced Engineering Materials· Volume 18· Issue 1
Publisher page

Abstract

3D silicon carbide structures are patterned via direct ink writing (DIW) of borosiloxane-colloidal SiC ink blends. These hybrid inks enable printing over a wide range of colloidal volume fractions (0.38 < ɸ < 0.54) to produce relative densities of ≈30–50%. Structural (bars, cylinders, turbines) and functional (periodic lattices, microwave feedhorns) components are printed and sintered with excellent shape stability. The SiC feedhorns transmit microwaves (8.5 GHz) with very low insertion losses (≈0.05 dB) relative to commercial standards, demonstrating their potential in microwave optics applications.
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Research context

OpenAlex topics: Advanced ceramic materials synthesis · Synthesis and properties of polymers · Silicone and Siloxane Chemistry

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Mechanical and Aerospace Engineering Cornell University, Thurston Hall Ithaca New York 14853 USA

Physics Department, Cornell University Physical Sciences Building Ithaca New York 14853 USA

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