Transparent nano-composites ceramics by annealing of amorphous phase in the HfO2-Al2O3-GdAlO3 system

Shunji Araki, Masahiro Yoshimura

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16 Citations (Scopus)


We have succeeded in fabricating transparent nano-structured ceramics by annealing of the amorphous phase obtained by the solidification of the eutectic melt in the ternary system HfO2 - Al2O 3 - GdAlO3. The ceramics annealed at 1273 K for 6 hr contained 5-10-nm cubic hafnia grains, and those annealed at 1273 K for 72 hr contained both cubic hafnia and gadolinium aluminum garnet grains 5-10 nm in size. They showed high transparency. Annealing at 1473 K, however, resulted in grain growths that brought about non-transparency.

Original languageEnglish
Pages (from-to)155-160
Number of pages6
JournalInternational Journal of Applied Ceramic Technology
Issue number2
Publication statusPublished - 2004

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Condensed Matter Physics
  • Marketing
  • Materials Chemistry


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