Science· 2015Q1
Additive manufacturing of polymer-derived ceramics
- 1,094citations
- Q1SCImago
- 2015year
Short summary
3D printing of preceramic polymers cured by UV light enables the fabrication of complex ceramic microlattices and honeycombs with uniform shrinkage and no porosity.
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Key points
- Preceramic monomers are cured using UV light in a stereolithography 3D printer or patterned mask.
- This process forms 3D polymer structures with complex shapes and cellular architectures.
- Pyrolysis of these polymer structures yields ceramics with uniform shrinkage and no porosity.
- Fabricated silicon oxycarbide microlattices and honeycombs show higher strength than similar-density ceramic foams.
AI-generated from the title and abstract; the full text is not read.
Abstract
The extremely high melting point of many ceramics adds challenges to additive manufacturing as compared with metals and polymers. Because ceramics cannot be cast or machined easily, three-dimensional (3D) printing enables a big leap in geometrical flexibility. We report preceramic monomers that are cured with ultraviolet light in a stereolithography 3D printer or through a patterned mask, forming 3D polymer structures that can have complex shape and cellular architecture. These polymer structures can be pyrolyzed to a ceramic with uniform shrinkage and virtually no porosity. Silicon oxycarbide microlattice and honeycomb cellular materials fabricated with this approach exhibit higher strength than ceramic foams of similar density. Additive manufacturing of such materials is of interest for propulsion components, thermal protection systems, porous burners, microelectromechanical systems, and electronic device packaging.
The authors' abstract, as published at the source. Science, 2015 · DOI ↗
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Field: Automotive Engineering
Automotive EngineeringEngineering