Casting of particle-based hollow shapes

Details Casting of particle-based hollow shapes Casting of particle-based hollow shapes

1993-06-25

1995-05-30

Fiorilla, Christopher A.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264109, C04B 35634

Patent

active

054198607

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.

REFERENCES:
patent: 3423358 (1969-01-01), Burke, Jr.
patent: 4132564 (1979-01-01), Burke, Jr. et al.
patent: 4587068 (1986-05-01), Borase et al.
patent: 4894194 (1990-01-01), Janney
patent: 4906424 (1990-03-01), Hughes et al.
patent: 4965039 (1990-10-01), Schuetz
patent: 5028362 (1991-07-01), Janney et al.
Publication entitled "Gelcasting of Alumina".
IBM Technical Disclosure Bulletin vol. 14, No. 10 (Mar. 1972) (1 page).

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