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Title: Casting of particle-based hollow shapes

A method is disclosed for the production of hollow articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with one aspect of the invention, a thermally settable slurry containing a relatively high concentration of the particles is coated onto a prewarmed continuous surface in a relatively thin layer so that the slurry is substantially uniformly coated on the surface. The heat of the prewarmed surface conducts to the slurry to initiate a reaction which causes the slurry to set or harden in a shape conforming to the surface. The hardened configurations may then be sintered to consolidate the particles and provide a high density product. 9 figs.
Inventors:
Issue Date:
OSTI Identifier:
63454
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 360101; 360201; PA: EDB-95:091000; SN: 95001401194
Patent Number(s):
US 5,419,860/A/
Application Number:
PAN: 8-083,965
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 30 May 1995
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; METALS; CASTING; CERAMICS; SHAPE; SINTERING; SLURRIES

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