Mechanical properties of dry-pressed ceramic green products: The effect of the binder

Journal Article · Fri Aug 01 00:00:00 EDT 1997 · Journal of the American Ceramic Society

DOI:https://doi.org/10.1111/j.1151-2916.1997.tb03082.x· OSTI ID:532934

Baklouti, S; Chartier, T; Baumard, J F ^[1]

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1. Ecole Nationale Superieure de Ceramique Industrielle, Limoges (France). Lab. de Materiaux Ceramiques et Traitements de Surface

The strength of alumina green samples prepared by uniaxial pressing of powders spray-dried with two binders such as poly(ethylene glycol) or poly(vinyl alcohol) is discussed in terms of (i) the adhesive properties of the polymer-rich external layer of spray-dried granules and (ii) the mechanical properties of this layer. A transition from intra- to intergranular fracture is observed when the glass transition temperature of the binder increases. The influence of the binder on the defect size distribution in the green products is investigated using the classical Weibull statistics.

• Sponsoring Organization: USDOE
• OSTI ID: 532934
• Journal Information: Journal of the American Ceramic Society, Journal Name: Journal of the American Ceramic Society Journal Issue: 8 Vol. 80; ISSN 0002-7820; ISSN JACTAW
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM OXIDES
BINDERS
COMPACTING
COMPRESSION STRENGTH
MECHANICAL PROPERTIES
POLYETHYLENE GLYCOLS
POWDERS
PVA