Sintering factors for a dry-milled silicon nitride-yttria-alumina composition

Journal Article · Thu Jun 01 04:00:00 EDT 1989 · American Ceramic Society Bulletin; (USA)

OSTI ID:6522216

Crosbie, G M; Nicholson, J M; Stiles, E D ^[1]

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1. Ford Motor Co., Dearborn, MI (US)

Of the paths leading to strong and tough silicon nitride (Si{sub 3}N{sub 4}) ceramics, those beginning with Si{sub 3}N{sub 4} powders have the advantage of short sintering times and potential for high purity. Problems with this route have been with the limited availability of quality powders that would permit reproducible fabrication at a reasonable cost. In this paper, the authors describe their work tailoring a pressureless sintering cycle to a high-cation-purity commercial powder. This work is intended to form a base line for testing low-carbon powders under development.

• OSTI ID: 6522216
• Journal Information: American Ceramic Society Bulletin; (USA), Journal Name: American Ceramic Society Bulletin; (USA) Vol. 68:6; ISSN ACSBA; ISSN 0002-7812
• 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
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
COMPOSITE MATERIALS
COST
FABRICATION
MATERIALS
NITRIDES
NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
POWDERS
QUALITY ASSURANCE
SILICON COMPOUNDS
SILICON NITRIDES
SINTERING
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES