Directly susceptible, noncarbon metal ceramic composite crucible

Morrow, S Marvin; Rexford, Donald

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Title: Directly susceptible, noncarbon metal ceramic composite crucible

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Abstract

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.

Inventors:

Holcombe, Jr., Cressie E. ^[1]; Kiggans, Jr., James O. ^[2]; Morrow, S Marvin ^[3]; Rexford, Donald ^[4]

(Farragut, TN)
(Oak Ridge, TN)
Kingston, TN
Pattersonville, NY

Issue Date:: 1999-01-01

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 872726

Patent Number(s):: 5997802

Assignee:: United States of America as represented by United States (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS

F - MECHANICAL ENGINEERING F27 - FURNACES F27B - FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL

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B - PERFORMING OPERATIONS B22 - CASTING B22D - CASTING OF METALS
B22D41/00 - Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like

F - MECHANICAL ENGINEERING F27 - FURNACES F27B - FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
F27B14/061 - {Induction furnaces}
F27B14/10 - Crucibles

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DOE Contract Number:: AC05-96OR22464

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: directly; susceptible; noncarbon; metal; ceramic; composite; crucible; sintered; suitable; temperature; induction; melting; reactive; metals; appreciable; carbon; silicon; contamination; melt; comprises; cast; matrix; thermally; conductive; material; perforated; sleeve; serves; susceptor; heating; embedded; thermal-shock-absorber; barrier; interposed; allow; differential; thermal; expansions; moderates; effects; rapid; changes; reactive metals; differential thermal; active metal; ceramic material; ceramic composite; thermal expansion; reactive metal; thermally conductive; conductive ceramic; metal ceramic; induction heating; sintered metal; perforated metal; induction melting; temperature induction; ceramic mater; active metals; crucible comprises; /266/373/432/

Citation Formats


                    Holcombe, Jr., Cressie E., Kiggans, Jr., James O., Morrow, S Marvin, and Rexford, Donald. Directly susceptible, noncarbon metal ceramic composite crucible.  United States: N. p., 1999. 
        Web.

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                    Holcombe, Jr., Cressie E., Kiggans, Jr., James O., Morrow, S Marvin, & Rexford, Donald. Directly susceptible, noncarbon metal ceramic composite crucible.  United States.

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                    Holcombe, Jr., Cressie E., Kiggans, Jr., James O., Morrow, S Marvin, and Rexford, Donald. Fri .  
        "Directly susceptible, noncarbon metal ceramic composite crucible".  United States.  https://www.osti.gov/servlets/purl/872726.

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@article{osti_872726,

  title        = {Directly susceptible, noncarbon metal ceramic composite crucible},

  author       = {Holcombe, Jr., Cressie E. and Kiggans, Jr., James O. and Morrow, S Marvin and Rexford, Donald},

  abstractNote = {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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1999},

  month        = {1}

}

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