Nd2O3 doped yttria stabilized zirconia ceramics fabricated by conventional and microwave sintering methods

A. Muthuchamy, Nidhi Nagaraju, A. Raja Annamalai, Dinesh K. Agrawal

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Abstract

Cubic 8 mol. % yttria stabilized zirconia (8YSZ) ceramics doped with 9, 12 and 15 wt. % Nd2O3 were sintered in a single mode 2.45 GHz microwave furnace at sintering temperature of 1400 °C for 20 min. and by conventional sintering at 1400 °C for 5 h. The microwave sintered samples attained higher densities than the conventional processed ones. The Nd2O3 additions have adverse effects on densification of 8YSZ ceramics. The XRD investigations revealed that, cubic phase of 8YSZ remained stable and substitution of Zr4+ ions by larger Nd3+ ions causes an increase in the lattice parameters with Nd2O3 additions. Vickers hardness of 8YSZ decreased with addition of Nd2O3 irrespective of the sintering technique.

Original languageEnglish (US)
Pages (from-to)45-50
Number of pages6
JournalCeramics - Silikaty
Volume63
Issue number1
DOIs
StatePublished - 2019

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Ceramics and Composites
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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