Casting of particle-based hollow shapes
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United States of America Patent
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Sep 9, 1997
Issued Date -
N/A
app pub date -
Mar 27, 1995
filing date -
Jun 25, 1993
priority date (Note) -
Expired
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Abstract
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.
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