Method For Removing Volatile Components From A Gel-Cast Ceramic Article

Klug, Frederic Joseph; DeCarr, Sylvia Marie

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Title: Method For Removing Volatile Components From A Gel-Cast Ceramic Article

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Abstract

A method of removing substantially all of the volatile component in a green, volatile-containing ceramic article is disclosed. The method comprises freezing the ceramic article; and then subjecting the frozen article to a vacuum for a sufficient time to freeze-dry the article. Frequently, the article is heated while being freeze-dried. Use of this method efficiently reduces the propensity for any warpage of the article. The article is often formed from a ceramic slurry in a gel-casting process. A method for fabricating a ceramic core used in investment casting is also described.

Inventors:

Klug, Frederic Joseph ^[1]; DeCarr, Sylvia Marie ^[1]

Schenectady, NY

Issue Date:: 2004-09-07

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

OSTI Identifier:: 879748

Patent Number(s):: 6787074

Application Number:: 10/068158

Assignee:: General Electric Company (Nishayuna, NY)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22C - FOUNDRY MOULDING

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

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B - PERFORMING OPERATIONS B22 - CASTING B22C - FOUNDRY MOULDING
B22C1/00 - Compositions of refractory mould or core materials
B22C1/222 - {Polyacrylates}
B22C9/10 - Cores
B22C9/126 - {Hardening by freezing}

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
C04B35/111 - Fine ceramics
C04B35/638 - Removal thereof

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DOE Contract Number:: AC05-96OR22464

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Citation Formats


                    Klug, Frederic Joseph, and DeCarr, Sylvia Marie. Method For Removing Volatile Components From A Gel-Cast Ceramic Article.  United States: N. p., 2004. 
        Web.

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                    Klug, Frederic Joseph, & DeCarr, Sylvia Marie. Method For Removing Volatile Components From A Gel-Cast Ceramic Article.  United States.

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                    Klug, Frederic Joseph, and DeCarr, Sylvia Marie. Tue .  
        "Method For Removing Volatile Components From A Gel-Cast Ceramic Article".  United States.  https://www.osti.gov/servlets/purl/879748.

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@article{osti_879748,

  title        = {Method For Removing Volatile Components From A Gel-Cast Ceramic Article},

  author       = {Klug, Frederic Joseph and DeCarr, Sylvia Marie},

  abstractNote = {A method of removing substantially all of the volatile component in a green, volatile-containing ceramic article is disclosed. The method comprises freezing the ceramic article; and then subjecting the frozen article to a vacuum for a sufficient time to freeze-dry the article. Frequently, the article is heated while being freeze-dried. Use of this method efficiently reduces the propensity for any warpage of the article. The article is often formed from a ceramic slurry in a gel-casting process. A method for fabricating a ceramic core used in investment casting is also described.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2004},

  month        = {9}

}

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