Reaction sintered multiphase ceramic

Patent · Tue Aug 12 00:00:00 EDT 1986

OSTI ID:5348657

DeAngelis, T P

A reaction sintered multiphase ceramic body consisting essentially of a fine-grained, homogeneous, intimate interdispersion of: (a) 5-95 mole percent of nitride phase or phases having a maximum grain size substantially not greater than 10 ..mu..m and being nitride of one or both of Al and Si, and (b) 5-95 mole percent of second phase or phases having a maximum grain size substantially not greater than 10..mu..m and being boride, carbide, silicide, sulfide or combination thereof of one or more of the elements of Groups 3b including lanthanide and actinide series elements, 4b, 5b and 6b; which body contains 0 to 4 weight percent oxygen and is prepared by the process comprising; (c) admixing particulate reactants of maximum particle size substantially not greater than 150 ..mu..m and being elements, compounds, intermetallic compounds, alloys or combination thereof in stoichiometric proportions to substantially form the nitride and second phases, and (d) shaping and heating the admixture to form the reaction sintered body, the heating being done in atmosphere that is nonreactive with the admixture and at temperature at which the reaction and sintering occurs between the reactants to substantially form the nitride and second phases.

• Assignee: Corning Glass Works, Corning, NY
• Patent Number(s): US 4605633
• OSTI ID: 5348657
• Resource Relation: Patent File Date: Filed date 30 Dec 1982
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM NITRIDES
SINTERING
CERAMICS
SILICON NITRIDES
ACTINIDES
BORIDES
CARBIDES
CHEMICAL REACTION KINETICS
GRAIN SIZE
HEATING
INTERMETALLIC COMPOUNDS
MIXING
OXYGEN
PARTICLE SIZE
PARTICULATES
QUANTITY RATIO
RARE EARTH COMPOUNDS
SILICIDES
SINTERED MATERIALS
SULFIDES
TEMPERATURE DEPENDENCE
ALLOYS
ALUMINIUM COMPOUNDS
BORON COMPOUNDS
CARBON COMPOUNDS
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTS
FABRICATION
KINETICS
MATERIALS
METALS
MICROSTRUCTURE
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PARTICLES
PNICTIDES
REACTION KINETICS
SILICON COMPOUNDS
SIZE
SULFUR COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication