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Non-graphite crucible for high temperature applications

Patent ·
OSTI ID:869418
 [1];  [2]
  1. Knoxville, TN
  2. Norris, TN
+ Show Author Affiliations

A multi-piece crucible for high temperature applications comprises a tubular side wall member having a lip on the inside surface and a bottom member or members forming a container for containing a melt of a material during a high temperature melt-casting operations. The multi-piece design prevents cracking of the crucible or leakage of the melt from the crucible during the melt-casting operation. The lip of the tubular member supports the bottom member. The contacting surfaces where the lip of the tubular side wall member contacts the bottom member of the multi-piece crucible contains a ceramic sealing material. The ceramic sealing material forms a seal sufficient to prevent the melt of the material from leaking out of the multi-piece crucible during the melt-casting process. The multi-piece crucible is made of a material which is chemically inert to the melt and has structural integrity at the melting point temperature of the melt, or of a material coated with such a material.

Research Organization:
LOCKHEED MARTIN ENRGY SYST INC
DOE Contract Number:
AC05-84OR21400
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
Patent Number(s):
US 5333844
OSTI ID:
869418
Country of Publication:
United States
Language:
English

References (2)

Noncarbon furnace for vacuum induction melting of uranium and its alloys journal November 1988
Use of Tribocor 532N for a carbon-free induction furnace for vacuum-induction melting and casting of uranium and its alloys journal November 1987

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Related Subjects

/266/137/432/
applications
applications comprises
bottom
casting operation
casting process
ceramic
ceramic seal
ceramic sealing
chemically
chemically inert
coated
comprises
contacting
contacting surface
contacting surfaces
contacts
container
containing
contains
cracking
crucible
design
forming
forms
inert
inside
inside surface
integrity
leakage
leaking
lip
material
material forms
melt
melt-casting
melting
multi-piece
multi-piece crucible
non-graphite
non-graphite crucible
operation
operations
prevent
prevents
process
seal
sealing
sealing material
structural
structural integrity
sufficient
supports
surface
surfaces
temperature
temperature application
temperature applications
tubular
wall