Accession Number : ADA329897

Title :   Free Form Fabrication of Ceramics by Stereolithography.

Descriptive Note : Final rept. 1 Jan 93-31 Dec 94,

Corporate Author : MICHIGAN UNIV ANN ARBOR DEPT OF MATERIALS SCIENCE AND ENGINEERING

Personal Author(s) : Halloran, John W.

PDF Url : ADA329897

Report Date : 25 AUG 1997

Pagination or Media Count : 41

Abstract : During this grant we showed that stereolithography can directly fabricate ceramic green bodies from ultraviolet (UV) curable solutions which contain dispersed ceramic powders. We demonstrated SLA of silica, a model refractory for metal casting molds, and SLA of alumina, which is promising for structural ceramics. Viscosity control for these highly concentrated suspensions and cure depth behavior were the main issues for fabricating a ceramic using stereolithography techniques. These ceramic SLA suspensions were evaluated in a stereolithography machine, and three-dimensional parts were built. Part building parameters, Dp and Ec, were determined for this suspension. Layer adhesion and subsequent processing resulted in good ceramic parts.

Descriptors :   *ALUMINUM OXIDES, SILICON DIOXIDE, CERAMIC MATERIALS, LITHOGRAPHY, CASTING, CURING, POWDER METALS.

Subject Categories : Mfg & Industrial Eng & Control of Product Sys
      Printing and Graphic Arts
      Ceramics, Refractories and Glass

Distribution Statement : APPROVED FOR PUBLIC RELEASE