Method of melting metals to reduce contamination from crucibles

Patent · Sat Jan 01 04:00:00 EST 1977

OSTI ID:862845

Banker, John G ^[1]; Wigginton, Hubert L ^[2]

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1. Kingston, TN
2. Oak Ridge, TN

Contamination of metals from crucible materials during melting operations is reduced by coating the interior surface of the crucible with a ceramic non-reactive with the metallic charge and disposing a metal liner formed from a portion of the metallic charge within the coated crucible. The liner protects the ceramic coating during loading of the remainder of the charge and expands against the ceramic coating during heat-up to aid in sintering the coating.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
• DOE Contract Number: W-7405-ENG-26
• Assignee: United States of America as represented by United States Energy (Washington, DC)
• Patent Number(s): US 4028096
• OSTI ID: 862845
• Country of Publication: United States
• Language: English

Related Subjects

/75/264/266/
ceramic
ceramic coating
charge
coated
coating
contamination
crucible
crucibles
disposing
expands
formed
heat-up
interior
interior surface
liner
loading
materials
melting
melting metal
melting operation
metal
metal line
metal liner
metallic
metals
method
non-reactive
operations
portion
protects
reduce
reduce contamination
reduced
remainder
sintering
surface