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Title: Conditions to obtain reliable high strength alumina via centrifugal casting

Electrostatically stabilized alumina suspensions with high solids content of up to 58 vol% were consolidated into near-net-shape parts via centrifugal casting. High density green bodies showed excellent sintering kinetics leading to {ge} 99.5% of theoretical density (TD) at lowered temperatures compared to isostatic pressing. Four point bend strengths of 540 MPa with Weibull moduli of up to 24 were achieved using commercial {alpha}-alurnina powders.
Authors:
; ;  [1]
  1. Swiss Federal Institute of Technology, Zuerich (Switzerland)
Publication Date:
OSTI Identifier:
99161
Report Number(s):
CONF-940911-
TRN: 95:005310-0051
Resource Type:
Conference
Resource Relation:
Conference: 5. international conference on ceramic processing science and technology, Friedrichshafen (Germany), 11-14 Sep 1994; Other Information: PBD: 1995; Related Information: Is Part Of Ceramic transactions: Ceramic processing science and technology. Volume 51; Hausner, H.; Messing, G.L.; Hirano, Shin-ichi [eds.]; PB: 835 p.
Publisher:
American Ceramic Society, Westerville, OH (United States)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ALUMINIUM OXIDES; CASTING; MECHANICAL PROPERTIES; BENDING; SUSPENSIONS; PARTICLE SIZE