Solid freeform fabrication using alumina-poly(vinyl alcohol) gel-casting suspensions

S. L. Morissette, J. A. Lewis, J. Cesarano Up, D. B. Dimos

Research output: Contribution to journalConference articlepeer-review


Solid freeform fabrication of aqueous alumina (Al2O3)-poly(vinyl alcohol) (PVA) gel-casting suspensions was carried out using a computer-controlled extrusion apparatus fitted with a two-nozzle delivery system. The impact of casting parameters (e.g., tip diameter, mixing rate, etc.) and suspension composition on line resolution/uniformity, printability, and as-cast component properties was probed using laser profilometry and optical microscopy. Line uniformity depended on mixing rate (Rmix) and tip diameter (td) for the chamber and paddle geometry utilized. These data were used to establish processing maps that identify optimal print conditions for varying suspension composition.

Original languageEnglish (US)
Pages (from-to)125-130
Number of pages6
JournalMaterials Research Society Symposium - Proceedings
StatePublished - 1999
EventProceedings of the 1998 MRS Fall Meeting - The Symposium 'Advanced Catalytic Materials-1998' - Boston, MA, USA
Duration: Nov 30 1998Dec 3 1998

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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