Method and apparatus for making articles from particle based materials

Moorhead, Arthur J; Menchhofer, Paul A

Title: Method and apparatus for making articles from particle based materials

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Abstract

A method and apparatus for the production of articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with the invention, a thermally settable slurry containing a relatively high concentration of the particles is conveyed through an elongate flow area having a desired cross-sectional configuration. The slurry is heated as it is advanced through the flow area causing the slurry to set or harden in a shape which conforms to the cross-sectional configuration of the flow area. The material discharges from the flow area as a self-supporting solid of near net final dimensions. The article may then be sintered to consolidate the particles and provide a high density product.

Inventors:

Moorhead, Arthur J ^[1]; Menchhofer, Paul A ^[2]

Knoxville, TN
Oak Ridge, TN

Issue Date:: 1995-01-01

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

OSTI Identifier:: 870208

Patent Number(s):: 5476622

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

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

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B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2101/10 - Thermosetting resins

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C48/06 - Rod-shaped

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

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C48/09 - Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

B - PERFORMING OPERATIONS B28 - WORKING CEMENT, CLAY, OR STONE B28B - SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS, SLAG, OR MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
B28B3/20 - wherein the material is extruded {

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C48/07 - Flat, e.g. panels

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29K - INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
B29K2503/00 - Use of resin-bonded materials as filler

B - PERFORMING OPERATIONS B30 - PRESSES B30B - PRESSES IN GENERAL
B30B11/22 - Extrusion presses

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C48/12 - Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
B29C48/11 - comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
B29C48/91 - Heating, e.g. for cross linking

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DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; apparatus; articles; particle; based; materials; production; particle-based; material; ceramics; sintered; metals; accordance; thermally; settable; slurry; containing; relatively; concentration; particles; conveyed; elongate; flow; desired; cross-sectional; configuration; heated; advanced; causing; set; harden; shape; conforms; discharges; self-supporting; solid; near; net; final; dimensions; article; consolidate; provide; density; product; cross-sectional configuration; slurry containing; near net; sintered metals; particle-based material; settable slurry; thermally settable; final dimensions; density product; sintered metal; particle based; desired cross-sectional; /264/425/

Citation Formats


                    Moorhead, Arthur J, and Menchhofer, Paul A. Method and apparatus for making articles from particle based materials.  United States: N. p., 1995. 
        Web.

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                    Moorhead, Arthur J, & Menchhofer, Paul A. Method and apparatus for making articles from particle based materials.  United States.

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                    Moorhead, Arthur J, and Menchhofer, Paul A. Sun .  
        "Method and apparatus for making articles from particle based materials".  United States.  https://www.osti.gov/servlets/purl/870208.

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@article{osti_870208,

  title        = {Method and apparatus for making articles from particle based materials},

  author       = {Moorhead, Arthur J and Menchhofer, Paul A},

  abstractNote = {A method and apparatus for the production of articles made of a particle-based material; e.g., ceramics and sintered metals. In accordance with the invention, a thermally settable slurry containing a relatively high concentration of the particles is conveyed through an elongate flow area having a desired cross-sectional configuration. The slurry is heated as it is advanced through the flow area causing the slurry to set or harden in a shape which conforms to the cross-sectional configuration of the flow area. The material discharges from the flow area as a self-supporting solid of near net final dimensions. The article may then be sintered to consolidate the particles and provide a high density product.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1995},

  month        = {1}

}

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