Fabrication of translucent magnesium aluminum spinel ceramics

Ji Guang Li, Takayasu Ikegami, Jong Heun Lee, Toshiyuki Mori

Research output: Contribution to journalArticlepeer-review

128 Citations (Scopus)


A precursor for magnesium aluminum spinel powder, composed of crystalline ammonium dawsonite hydrate (NH4Al(OH)2CO3·H2O) and hydrotalcite (Mg6Al2(CO3)(OH)16·4H2O) phases, was synthesized via precipitation, using ammonium bicarbonate as the precipitant. The precursor was characterized by differential thermal analysis/thermogravimetry, X-ray diffractometry, and scanning electron microscopy. Reactive spinel powder, which could be densified to translucency under vacuum at 1750 °C in 2 h without additives, was obtained by calcining the precursor at 1100 °C for 2 h.

Original languageEnglish
Pages (from-to)2866-2868
Number of pages3
JournalJournal of the American Ceramic Society
Issue number11
Publication statusPublished - 2000
Externally publishedYes

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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