Reaction sintered oxide-boride

Patent · Tue Aug 12 00:00:00 EDT 1986

OSTI ID:5348697

DeAngelis, T P

A reaction sintered oxide-boride ceramic body is described consisting essentially of a fine-grained, homogeneous, intimate interdispersion of: (a) 10-90 mole percent of boride phase or phases having a maximum grain size substantially not greater than 15 ..mu..m and being boride of one or more of the elements of Groups 3b including lanthanide and actinide series elements, 4b, 5b, and 6b, and (b) 10-90 mole percent of oxide phase or phases having a maximum grain size substantially not greater than 15 ..mu..m and being oxide of one or more of the elements of Groups 3a, 4a, 3b, 4b, 5b, 6b and 8; which body 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 boride and oxide phases, and (d) shaping and heating the admixture to form the reaction sintered body, the heating being done in nonreactive atmosphere and at temperature at which the reaction and sintering occurs between the reactants to substantially form the boride and oxide phases.

• Assignee: Corning Glass Works, Corning, NY
• Patent Number(s): US 4605634
• OSTI ID: 5348697
• Resource Relation: Patent File Date: Filed date 27 Jun 1985
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
SINTERING
ACTINIDES
ALLOYS
BORIDES
GRAIN SIZE
HEATING
INTERMETALLIC COMPOUNDS
MIXING
OXIDES
PARTICLE SIZE
PARTICULATES
QUANTITY RATIO
RARE EARTH COMPOUNDS
SINTERED MATERIALS
TEMPERATURE DEPENDENCE
BORON COMPOUNDS
CHALCOGENIDES
CRYSTAL STRUCTURE
ELEMENTS
FABRICATION
MATERIALS
METALS
MICROSTRUCTURE
OXYGEN COMPOUNDS
PARTICLES
SIZE
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication