Casting of particle-based hollow shapes

Menchhofer, Paul

Title: Casting of particle-based hollow shapes

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.

Inventors:

Menchhofer, Paul ^[1]

Oak Ridge, TN

Issue Date:: 1997-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 871137

Patent Number(s):: 5665440

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F5/10 - of articles with cavities or holes, not otherwise provided for in the preceding subgroups

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B35/622 - Forming processes

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/1352 - Polymer or resin containing [i.e., natural or synthetic]

B - PERFORMING OPERATIONS B22 - CASTING B22F - WORKING METALLIC POWDER
B22F3/22 - for producing castings from a slip

Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10T - TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T428/1314 - Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
Y10T428/1397 - Single layer [continuous layer]

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DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

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/

Citation Formats


                    Menchhofer, Paul. Casting of particle-based hollow shapes.  United States: N. p., 1997. 
        Web.

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                    Menchhofer, Paul. Casting of particle-based hollow shapes.  United States.

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                    Menchhofer, Paul. Wed .  
        "Casting of particle-based hollow shapes".  United States.  https://www.osti.gov/servlets/purl/871137.

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@article{osti_871137,

  title        = {Casting of particle-based hollow shapes},

  author       = {Menchhofer, Paul},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1997},

  month        = {1}

}

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Works referenced in this record:

Gelcasting of Alumina
journal, March 1991

Young, Albert C.; Omatete, Ogbemi O.; Janney, Mark A.
Journal of the American Ceramic Society, Vol. 74, Issue 3
https://doi.org/10.1111/j.1151-2916.1991.tb04068.x

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Title: Casting of particle-based hollow shapes

Abstract

Citation Formats

Gelcasting of Alumina journal, March 1991

Gelcasting of Alumina
journal, March 1991