Processing of nanophase ceramics

Conference · Sun Nov 01 00:00:00 EST 1987

OSTI ID:5524241

Hahn, H; Eastman, J A; Siegel, R W

The gas-condensation method for the production of small particles in the size range of 1 to 10 nm has recently enabled the synthesis of a new class of ultrafine-grained, nanophase ceramics. The first demonstrations of the synthesis of nanophase TiO/sub 2/ have shown that these ceramics, while already rather well bonded on compaction at room temperature, sinter rapidly above 500/sup 0/C, with only small increases in grain size, leading to Vickers hardness and fracture toughness values comparable to or greater than those of coarser-grained compacts, but at some 400 to 600/sup 0/C lower temperatures and without the need for sintering aids. 11 refs., 4 figs.

• Research Organization: Illinois Univ., Urbana (USA). Materials Research Lab.; Argonne National Lab., IL (USA)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5524241
• Report Number(s): CONF-8711115-5; ON: DE88005985
• Resource Relation: Conference: 1. international conference on ceramic powder processing sciences, Orlando, FL, USA, 1 Nov 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TITANIUM OXIDES
POWDER METALLURGY
COMPACTING
GRAIN SIZE
MICROHARDNESS
MICROSPHERES
PARTICLE SIZE
POWDERS
PROCESSING
SINTERING
VAPOR CONDENSATION
VICKERS HARDNESS
CHALCOGENIDES
CRYSTAL STRUCTURE
FABRICATION
HARDNESS
MECHANICAL PROPERTIES
METALLURGY
MICROSTRUCTURE
OXIDES
OXYGEN COMPOUNDS
SIZE
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
360201* - Ceramics
Cermets
& Refractories- Preparation & Fabrication