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Journal of Materials Science

, Volume 26, Issue 8, pp 2081–2088 | Cite as

Interfacial factors affecting the incidence of defects in ceramic mouldings

  • J. R. G. Evans
  • M. J. Edirisinghe
Papers

Abstract

Ceramic injection moulding suspensions consisting of two alumina powders of surface area 9.5 m2 g−1 and 0.3 m2 g−1 were prepared at 60 vol % ceramic loading in the same organic composition. Cylinders of various diameters of each suspension were companion fired on an identical temperature ramp in nitrogen. For the fine powder, bloating occurred for all diameters above 8 mm. The coarse powder cylinders of 25 mm diameter could be prepared free from internal voids. The problems presented by fine powders during binder removal are discussed in terms of adsorbed layers, water emission and catalytic degradation.

Keywords

Nitrogen Polymer Alumina Fine Powder Adsorbed Layer 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Chapman and Hall Ltd. 1991

Authors and Affiliations

  • J. R. G. Evans
    • 1
  • M. J. Edirisinghe
    • 1
  1. 1.Department of Materials TechnologyBrunel UniversityUxbridgeUK

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