Fabrication of ZnO ceramics using ZnO/Al2O3 nanocomposite particles prepared by mechanical treatment

Satoko TASAKI; Junichi TATAMI; Hiromi NAKANO; Toru WAKIHARA; Katsutoshi KOMEYA; Takeshi MEGURO

doi:10.2109/jcersj2.118.118

Papers

Fabrication of ZnO ceramics using ZnO/Al₂O₃ nanocomposite particles prepared by mechanical treatment

Satoko TASAKI, Junichi TATAMI, Hiromi NAKANO, Toru WAKIHARA, Katsutoshi KOMEYA, Takeshi MEGURO

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Keywords: ZnO, Al-doped, Composite particle, Dispersion

JOURNAL FREE ACCESS

2010 Volume 118 Issue 1374 Pages 118-121

DOI https://doi.org/10.2109/jcersj2.118.118

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Abstract

Nanocomposite particles of Al₂O₃-doped ZnO prepared by mechanical treatment were used for fabricating ZnO ceramics. TEM observations revealed that Al₂O₃ nanoparticles uniformly existed on a ZnO particle. The sintering body fabricated using the composite powder prepared by this mechanical treatment process had more uniform and finer microstructures than that fabricated using the powder mixture prepared by conventional wet mixing. The ZnO ceramics prepared by the mechanical treatment exhibited higher electrical conductivity than those prepared by the conventional wet ball milling process.

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