Dissolution behavior of Al and formation process of ZnAl2O 4 phases in Al2O3-doped ZnO sintered bodies

Keita Shirouzu, Tohru Kawamoto, Naoya Enomoto, Junichi Hojo

Research output: Contribution to journalArticle

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Abstract

Al-doped ZnO sintered bodies, which were doped with 0-2 mol % Al 2O3, were prepared from a powder mixture. Al could dissolve in ZnO grains uniformly and a fraction of Al tended to segregate along ZnO grain boundaries when the Al concentration was low. The decrease in the [c/a] lattice ratio suggested that the solubility of Al in ZnO increased with increasing concentration of Al2O3. The solubility of Al reached the limit when Al2O3 was doped at more than 1 mol %. ZnAl2O4 particles appeared before the solubility of Al reached the limit, indicating that the dissolution of Al and the formation of ZnAl2O4 phases occurred simultaneously in the Al 2O3-ZnO sintering process.

Original languageEnglish
Article number010201
JournalJapanese Journal of Applied Physics
Volume49
Issue number1 Part 1
DOIs
Publication statusPublished - Apr 19 2010

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dissolving
Dissolution
solubility
Solubility
low concentrations
sintering
Grain boundaries
Sintering
grain boundaries
Powders

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Dissolution behavior of Al and formation process of ZnAl2O 4 phases in Al2O3-doped ZnO sintered bodies. / Shirouzu, Keita; Kawamoto, Tohru; Enomoto, Naoya; Hojo, Junichi.

In: Japanese Journal of Applied Physics, Vol. 49, No. 1 Part 1, 010201, 19.04.2010.

Research output: Contribution to journalArticle

Shirouzu, Keita ; Kawamoto, Tohru ; Enomoto, Naoya ; Hojo, Junichi. / Dissolution behavior of Al and formation process of ZnAl2O 4 phases in Al2O3-doped ZnO sintered bodies. In: Japanese Journal of Applied Physics. 2010 ; Vol. 49, No. 1 Part 1.
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