(Created page with "{{MOST}} {{Pearce-pubs}} ==Source== * Apoorv Kulkarni, Gian Domenico Sorarù, Joshua M. Pearce. Polymer-derived SiOC Replica of Material Extrusion-based 3D Printed Plastics....")
 
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   polymer derived ceramics; fused filament fabrication; material extrusion; [[3D printing]]; open-source platform
   polymer derived ceramics; fused filament fabrication; material extrusion; [[3D printing]]; open-source platform


==See Also==
* [[Ystruder: open source multifunction extruder with sensing and monitoring capabilities]]
* [[Mechanical Properties of Components Fabricated with Open-Source 3-D Printers Under Realistic Environmental Conditions]]
* [[Tensile Strength of Commercial Polymer Materials for Fused Filament Fabrication 3-D Printing]]
* [[Anisotropic mechanical property variance between ASTM D638-14 type I and type IV fused filament fabricated specimens]]
* [[The Effects of PLA Color on Material Properties of 3-D Printed Components]]
* [[Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins]]
* [[Wood Furniture Waste-Based Recycled 3-D Printing Filament]]
==News==
# [https://3dprint.com/245551/finland-aalto-university-researchers-experiment-with-paste-extrusion-uv-curing-3d-printed-biocomposites/ Finland: Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites ]- 3D Print 64k
# [http://www.stamparein3d.it/esperimento-di-ricercatori-delluniversita-di-aalto-in-finlandia-con-estrusione-di-paste-e-polimerizzazione-uv-di-biocompositi-stampati-in-3d/ Esperimento di ricercatori dell’Università di Aalto in Finlandia con estrusione di paste e polimerizzazione UV di biocompositi stampati in 3D]- Stampare in 3D
# [https://3druck.com/3d-druckmaterialien/forscher-der-aalto-universitaet-experimentieren-mit-pastenextrusion-und-uv-haertung-von-3d-gedruckten-biokompositen-3882651/ Forscher der Aalto Universität experimentieren mit Pastenextrusion und UV-Härtung von 3D-gedruckten Biokompositen] 3D Ruck
# [https://3dprintingzoom.com/2019/06/04/finland-aalto-college-researchers-experiment-with-paste-extrusion-uv-curing-of-3d-printed-biocomposites/ Finland: Aalto College Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites] 3D Printing Zoom
# [http://gyges3d.com/news/bio-printing/aalto-university-researchers-experiment-with-paste-extrusion-uv-curing-of-3d-printed-biocomposites/ Aalto University Researchers Experiment with Paste Extrusion & UV Curing of 3D Printed Biocomposites] Gyges 3D


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Revision as of 20:30, 11 December 2019


Source

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Abstract

A promising method for obtaining ceramic components with additive manufacturing (AM) is to use a two-step process of first printing the artifact in polymer and then converting it to ceramic using pyrolysis to form polymer derived ceramics (PDCs). AM of ceramic components using PDCs has been demonstrated with a number of high-cost techniques, but data is lacking for fused filament fabrication (FFF)-based 3-D printing. This study investigates the potential of lower-cost, more widespread and accessible FFF-based 3-D printing of PDCs. Low-cost FFF machines have a resolution limit set by the nozzle width, which is inferior to the resolutions obtained with expensive stereolithography or selective laser sintering AM systems. However, to match the performance a partial PDC conversion is used here, where only the outer surface of the printed polymer frame is converted to ceramic. Here the FFF-based 3-D printed sample is coated with a preceramic polymer and then it is converted into the corresponding PDC sample with a high temperature pyrolysis process. A screening experiment is performed on commercial filaments to obtain ceramic 3-D prints by surface coating both hard thermoplastics: poly lactic acid (PLA), polycarbonate (PC), nylon alloys, polypropylene (PP), polyethylene terephthalate glycol (PETG), polyethylene terephthalate (PET), and co-polyesters; and flexible materials including: flexible PLA, thermoplastic elastomer and thermoplastic polyurethane filaments. Mass and volume changes were quantified for the soaking and pyrolysis steps to form a hollow ceramic skin. All 3-D printing materials extruded at 250 microns successfully produced hollow ceramics skins of less than 100 microns. Details on the advantages and disadvantages of the different 3-D printing polymer precursors are discussed for this processing regime. The novel results developed here can be used to choose FFF-based polymers to use for PDC processing on a wide range of applications such as heat exchangers, heat sinks, scaffoldings for bone tissue growth, chemical/ gas filters and custom scientific hardware.

Highlights

  • Additive manufacturing of polymer derived ceramics with fused filament fabrication.
  • Producing ceramics with hollow struts by surface coating with preceramic polymers.
  • Creating a multi-level porous system with stable geometry.
  • All 3-D printing materials produced ceramics skins of less than 100 microns.

Keywords

  polymer derived ceramics; fused filament fabrication; material extrusion; 3D printing; open-source platform


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