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Methods for preparation of three-dimensional bodies

United States Patent

September 28, 2004
View the Complete Patent at the US Patent & Trademark Office
Processes for mechanically fabricating two and three-dimensional fibrous monolith composites include preparing a fibrous monolith filament from a core composition of a first powder material and a boundary material of a second powder material. The filament includes a first portion of the core composition surrounded by a second portion of the boundary composition. One or more filaments are extruded through a mechanically-controlled deposition nozzle onto a working surface to create a fibrous monolith composite object. The objects may be formed directly from computer models and have complex geometries.
Mulligan; Anthony C. (Tucson, AZ), Rigali; Mark J. (Tucson, AZ), Sutaria; Manish P. (Philadelphia, PA), Artz; Gregory J. (Tucson, AZ), Gafner; Felix H. (Tucson, AZ), Vaidyanathan; K. Ranji (Tucson, AZ)
Advanced Ceramics Research, Inc. (Tucson, AZ)
10/ 005,656
December 4, 2001
The present invention was made with U.S. Government support under grant Number DE-FC02-96CH10861, awarded by the Department of Energy, and under grant Number NAS8-00081 awarded by the National Aeronautics and Space Administration. Accordingly, the Government may have certain rights in the invention described herein.