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

A method and apparatus are disclosed 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. 10 figs.
Inventors:
;
Issue Date:
OSTI Identifier:
170484
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 360101; 360201; PA: EDB-96:027596; SN: 96001517620
Patent Number(s):
US 5,476,622/A/
Application Number:
PAN: 7-898,914
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 19 Dec 1995
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CERAMICS; MANUFACTURING; METALS; EQUIPMENT; DESIGN; SINTERING; SHAPE; TEMPERATURE CONTROL; MASS TRANSFER