Zirconia-toughened alumina ceramics of helical spring shape with improved properties from extruded sol-derived pastes

KAYA C., Butler E.

SCRIPTA MATERIALIA, cilt.48, sa.4, ss.359-364, 2003 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 48 Sayı: 4
  • Basım Tarihi: 2003
  • Doi Numarası: 10.1016/s1359-6462(02)00460-8
  • Dergi Adı: SCRIPTA MATERIALIA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.359-364
  • Anahtar Kelimeler: ZTA, extrusion, toughness, microstructure
  • Yıldız Teknik Üniversitesi Adresli: Hayır

Özet

High strength (1270 MPa) and tough (>9 MPa m(1/2)) zirconia-toughened alumina (ZTA) ceramics with a helical spring shape were produced from sol-derived pastes comprising a mixture of boehmite (gamma-AlOOH) and nano-size zirconia powders using extrusion. It is shown that the mechanical response of the extruded ZTA ceramics can be controlled/altered by manipulating the microstructure. (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.