Textured alumina ceramics by uniaxial pressing

Suvacl E., Messing G.

7th Conference of the European Ceramic Society, Brugge, Belgium, 9 - 13 September 2001, vol.206-213, pp.405-408 identifier

  • Publication Type: Conference Paper / Full Text
  • Volume: 206-213
  • City: Brugge
  • Country: Belgium
  • Page Numbers: pp.405-408
  • Keywords: Alpha alumina, Templated grain growth, Textured ceramics
  • Anadolu University Affiliated: Yes

Abstract

Highly textured, dense alumina ceramics were fabricated by a processing route which utilizes a mixture oral metal powder, alumina powder, alumina platelet (template) particles and a liquid phase former. The process involves dry forming the powder mixture (e.g., uniaxial pressing) to align the plate-like template particles. Texture quality can be controlled by compaction strain. Thermodynamic conditions favourable for template growth occur when the size ratio between the template thickness and matrix grains is ≥1.5.