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Title: Method and apparatus for making articles from particle based materials

A method and apparatus for the production of articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with the invention, a thermally settable slurry containing a relatively high concentration of the particles is conveyed through an elongate flow area having a desired cross-sectional configuration. The slurry is heated as it is advanced through the flow area causing the slurry to set or harden in a shape which conforms to the cross-sectional configuration of the flow area. The material discharges from the flow area as a self-supporting solid of near net final dimensions. The article may then be sintered to consolidate the particles and provide a high density product.
Inventors:
 [1];  [2]
  1. (Knoxville, TN)
  2. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
870208
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5476622
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; articles; particle; based; materials; production; particle-based; material; ceramics; sintered; metals; accordance; thermally; settable; slurry; containing; relatively; concentration; particles; conveyed; elongate; flow; desired; cross-sectional; configuration; heated; advanced; causing; set; harden; shape; conforms; discharges; self-supporting; solid; near; net; final; dimensions; article; consolidate; provide; density; product; cross-sectional configuration; slurry containing; near net; sintered metals; particle-based material; settable slurry; thermally settable; final dimensions; density product; sintered metal; particle based; desired cross-sectional; /264/425/