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U.S. Department of Energy
Office of Scientific and Technical Information

Directly susceptible, noncarbon metal ceramic composite crucible

Patent ·
OSTI ID:872726
A sintered metal ceramic crucible suitable for high temperature induction melting of reactive metals without appreciable carbon or silicon contamination of the melt. The crucible comprises a cast matrix of a thermally conductive ceramic material; a perforated metal sleeve, which serves as a susceptor for induction heating of the crucible, embedded within the ceramic cast matrix; and a thermal-shock-absorber barrier interposed between the metal sleeve and the ceramic cast matrix to allow for differential thermal expansions between the matrix and the metal sleeve and to act as a thermal-shock-absorber which moderates the effects of rapid changes of sleeve temperature on the matrix.
Research Organization:
LOCKHEED MARTIN ENERGY RES COR
DOE Contract Number:
AC05-96OR22464
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 5997802
OSTI ID:
872726
Country of Publication:
United States
Language:
English