Method of melting metals to reduce contamination from crucibles

Patent · Sat Jan 01 00:00:00 EST 1977

OSTI ID:862845

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

---

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 (United States)
• 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

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