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Casting of particle-based hollow shapes

United States Patent

5,665,440
September 9, 1997
View the Complete Patent at the US Patent & Trademark Office
Oak Ridge National Laboratory - Visit the Partnerships Directorate Website
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.
Menchhofer; Paul (Oak Ridge, TN)
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
08/ 411,431
March 27, 1995
The United States Government has rights in this invention pursuant to blanket license agreement No. DE AC05-840R21400 awarded by United States Department of Energy Contract with Martin Marietta Energy Systems, Inc.