Freeform 3D-printing of pure ceramics

Mohammadreza Mahmoudi, Scott R. Burlison, Salvador Moreno, Majid Minary

Research output: Chapter in Book/Report/Conference proceedingConference contribution


Polymer derived ceramics (PDC's) offer a unique opportunity to 3D-print ceramics; however, 3D printing of such polymers require it to be combined with specialized light-sensitive agents and layer-by-layer crosslinking using an optical beam due to their low viscosity. Here, three-dimensional printing of ceramics enabled by dispensing the preceramic polymer from a nozzle inside a yield stress fluid is being demonstrated. The printed parts are crosslinked in the same gel. After crosslinking process, the printed parts are taken out of the gel and prepared for high temperature pyrolysis process that converts the cured parts to ceramic. The specially designed gel was three orders of magnitude more viscous than the preceramic polymer at no shear, which provided a stable medium during the whole process for maintaining the shape of the printed material and prevented possible instabilities. The SEM images of the cross section of the specimens showed that the printed material was dense and without any apparent porosity or cracks. Statistical analysis on the mechanical properties of the printed preceramic polymer specimens revealed that the printed specimens had characteristic strength (~257 MPa).

Original languageEnglish (US)
Title of host publicationAdvanced Materials
Subtitle of host publicationDesign, Processing, Characterization, and Applications
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791884508
StatePublished - 2020
Externally publishedYes
EventASME 2020 International Mechanical Engineering Congress and Exposition, IMECE 2020 - Virtual, Online
Duration: Nov 16 2020Nov 19 2020

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)


ConferenceASME 2020 International Mechanical Engineering Congress and Exposition, IMECE 2020
CityVirtual, Online


  • Ceramic 3D printing
  • Polymer-derived ceramics (PDCs)
  • Preceramic polymer
  • Support bath

ASJC Scopus subject areas

  • Mechanical Engineering


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