Method For Removing Volatile Components From A Gel-Cast Ceramic Article
Patent
·
OSTI ID:879748
- Schenectady, NY
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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-96OR22464
- Assignee:
- General Electric Company (Nishayuna, NY)
- Patent Number(s):
- US 6787074
- Application Number:
- 10/068158
- OSTI ID:
- 879748
- Country of Publication:
- United States
- Language:
- English
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