Global to push GA events into
skip to main content

Title: Casting of particle-based hollow shapes

A method 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.
Inventors:
 [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
871137
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5665440
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
casting; particle-based; hollow; shapes; method; production; articles; material; ceramics; sintered; metals; accordance; aspect; thermally; settable; slurry; containing; relatively; concentration; particles; coated; prewarmed; continuous; surface; layer; substantially; uniformly; heat; conducts; initiate; reaction; causes; set; harden; shape; conforming; hardened; configurations; consolidate; provide; density; product; uniformly coated; substantially uniformly; substantially uniform; slurry containing; shape conforming; sintered metals; particle-based material; settable slurry; thermally settable; density product; sintered metal; particle-based hollow; continuous surface; hollow articles; hollow shapes; /428/264/