Fabrication of silicon nitride ceramics by microwave heating

Conference · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5563456

Tiegs, T N; Kiggans, J O

Microwave processing of silicon nitride-based ceramics is currently being examined to identify aspects that may accelerate densification or produce unique microstructures. Because the microwaves preferentially couple with the sintering additives and the intergranular phases, relatively high additive contents are required to produce samples that will densify and are crack-free. Improved densification of green powder compacts and enhanced weight losses are observed during microwave heating. 18 refs., 4 figs.

• Research Organization: Oak Ridge National Lab., TN (United States)
• Sponsoring Organization: DOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5563456
• Report Number(s): CONF-910617-3; ON: DE91015312
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
360206 -- Ceramics
Cermets
& Refractories-- Radiation Effects
ABSORPTION
ANNEALING
CERAMICS
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DENSITY
ENERGY ABSORPTION
FABRICATION
GRAIN BOUNDARIES
HEAT TREATMENTS
HEATING
MICROSTRUCTURE
MICROWAVE HEATING
NITRIDATION
NITRIDES
NITROGEN COMPOUNDS
OPTIMIZATION
PERFORMANCE TESTING
PHYSICAL PROPERTIES
PNICTIDES
SILICON COMPOUNDS
SILICON NITRIDES
SINTERING
SYNTHESIS
TESTING