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Title: Fluid casting of particle-based articles

A method for the production of 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 introduced into an immiscible, heated fluid. The slurry sets or hardens into a shape determined by the physical characteristics of the fluid and the manner of introduction of the slurry into the fluid. For example, the slurry is pulse injected into the fluid to provide spherical articles. The hardened spheres may then be sintered to consolidate the particles and provide a high density product.
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5401445
Contract Number:
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Sponsoring Org:
Country of Publication:
United States
fluid; casting; particle-based; articles; method; production; material; ceramics; sintered; metals; accordance; aspect; thermally; settable; slurry; containing; relatively; concentration; particles; introduced; immiscible; heated; sets; hardens; shape; determined; physical; characteristics; manner; introduction; example; pulse; injected; provide; spherical; hardened; spheres; consolidate; density; product; heated fluid; physical characteristics; slurry containing; sintered metals; particle-based material; settable slurry; thermally settable; density product; sintered metal; physical characteristic; /264/