REACTION SINTERED MULTIPHASE CERAMIC

Ceramic body formed by reaction sintering at pressures ranging from subatmospheric to superatmospheric of admixed and shaped reactants, which can be elements, compounds, intermetallic compounds and/or alloys, in stoichiometric proportions to substantially form 5-95 mole percent of nitride phase or p...

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Bibliographic Details
Main Author DEANGELIS, THOMAS P
Format Patent
LanguageEnglish
French
Published 27.01.1987
Edition4
Subjects
APPARATUS THEREFOR
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
LIME, MAGNESIA
METALLURGY
PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY ORREFINING OF METALS
REFRACTORIES
SLAG
TREATMENT OF NATURAL STONE
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Summary:Ceramic body formed by reaction sintering at pressures ranging from subatmospheric to superatmospheric of admixed and shaped reactants, which can be elements, compounds, intermetallic compounds and/or alloys, in stoichiometric proportions to substantially form 5-95 mole percent of nitride phase or phases of one or both of Al and Si, and 5-95 mole percent of second phase or phases being boride, carbide, silicide and/or sulfide of one or more of elements of Groups 3b including lanthanide and actinide series elements, 4b, 5b and 6b, which phases have a maximum grain size substantially not greater than 10 um and which body contains 0 to 4 weight percent oxygen. Also component of electrowinning or electrorefining cell, which component in use is normally in contact with molten aluminum or in electrical contact with another component which is in contact with molten aluminum. Surface and/or inner portion of component is made of the ceramic body with first phase or phases being boride, carbide, silicide, and/or sulfide of one or more of the elements of Groups 4b, 5b and 6b. Also production cell, and method of producing aluminum in such cell, with the reaction sintered ceramic component.
Bibliography:Application Number: CA19830440745